List of 7400-series integrated circuits

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The following is a list of 7400-series digital logic integrated circuits. The original 7400-series integrated circuits were made by Texas Instruments with the prefix "SN" to create the name SN74xx. Due to the popularity of these parts, other manufacturers have released pin-to-pin compatible devices which kept the 7400 sequence number as an aid to identification of compatible parts. However, different manufacturers will use different prefixes or no prefix at all.

Overview[edit]

Some TTL logic parts were made with an extended military-specification temperature range. These parts are prefixed with 54 instead of 74 in the part number. A short-lived 64 prefix on Texas Instruments parts indicated an industrial temperature range; this prefix had been dropped from the TI literature by 1973. Most recent 7400 series parts are fabricated in CMOS or BiCMOS technology rather than TTL. Surface mount parts with a single gate (often in a 5-pin or 6-pin package) are prefixed with 741G instead of 74.

Some manufacturers released some 4000-series equivalent CMOS circuits with a 74 prefix, for example the 74HC4066 was a replacement for the 4066 with slightly different electrical characteristics (different power supply voltage ratings, higher frequency capabilities, lower "on" resistances in analog switches, etc.). See List of 4000-series integrated circuits. Conversely, the 4000-series has "borrowed" from the 7400 series - such as the CD40193 and CD40161 being pin-for-pin functional replacements for 74C193 and 74C161.

Older TTL parts made by manufacturers such as Signetics, Motorola, Mullard and Siemens may have different numeric prefix and numbering series entirely, such as in the European FJ family FJH101 is an 8-input NAND gate like a 7430.

A few alphabetic characters to designate a specific logic subfamily may immediately follow the 74 or 54 in the part number, e.g., 74LS74 for Low-power Schottky. Some CMOS parts such as 74HCT74 for High-speed CMOS with TTL-compatible input thresholds are functionally similar to the TTL part. Not all functions are available in all families.

In a few instances, such as the 7478 and 74107, the same suffix in different families do not have completely equivalent logic functions.

Another extension to the series is the 7416xxx variant, representing mostly the 16-bit wide counterpart of otherwise 8-bit-wide "base" chips with the same three ending digits. Thus e.g. a "7416373" would be the 16-bit-wide equivalent of a "74373". Some 7416xxx parts, however, do not have a direct counterpart from the standard 74xxx range but deliver new functionality instead, which needs making use of the 7416xxx series' higher pin count. For more details, refer primarily to the Texas Instruments documentation mentioned in the References section.

For CMOS (AC, HC, etc.) subfamilies, read "open drain" for "open collector" in the table below.

There are a few numeric suffixes that have multiple conflicting assignments, such as the 74453.

Larger footprints[edit]

Parts in this section have a pin count of 14 pins or more. The lower part numbers were established in the 1960s and 1970s, then higher part numbers were added incrementally over decades. IC manufacturers continue to make a core subset of this group, but many of these part numbers are considered obsolete and no longer manufactured. Older discontinued parts may be available from a limited number of sellers as new old stock (NOS), though some are much harder to find.

For the following table:

  • Part number column - the "x" is a place holder for the logic subfamily name. For example, 74x00 in "LS" logic family would be "74LS00".
  • Description column - the terms schmitt-trigger, open-collector/open-drain, three-state were moved to the input and output columns to make it easier to sort by those features.
  • Input column - a blank cell means a normal input for the logic family type.
  • Output column - a blank cell means a 'totem pole' output, also known as a push–pull output, with the ability to drive ten standard inputs of the same logic subfamily (fan-out NO=10). Outputs with higher output currents are often called drivers or buffers.
  • Pins column - number of pins for the dual in-line package version; a number in brackets indicates that there is no known dual in-line package version of this IC

74x00 – 74x99

Part number
Units Description Input Output Pins Datasheet
74x00 4 quad 2-input NAND gate 14 SN74LS00
74x01 4 quad 2-input NAND gate open-collector 14 SN74LS01
74x02 4 quad 2-input NOR gate 14 SN74LS02
74x03 4 quad 2-input NAND gate open-collector 14 SN74LS03
74x04 6 hex inverter gate 14 SN74LS04
74x05 6 hex inverter gate open-collector 14 SN74LS05
74x06 6 hex inverter gate open-collector 30 V / 40 mA 14 SN74LS06
74x07 6 hex buffer gate open-collector 30 V / 40 mA 14 SN74LS07
74x08 4 quad 2-input AND gate 14 SN74LS08
74x09 4 quad 2-input AND gate open-collector 14 SN74LS09
74x10 3 triple 3-input NAND gate 14 SN74LS10
74x11 3 triple 3-input AND gate 14 SN74LS11
74x12 3 triple 3-input NAND gate open-collector 14 SN74LS12
74x13 2 dual 4-input NAND gate schmitt-trigger 14 SN74LS13
74x14 6 hex inverter gate schmitt-trigger 14 SN74LS14
74x15 3 triple 3-input AND gate open-collector 14 SN74LS15
74x16 6 hex inverter gate open-collector 15 V / 40 mA 14 SN7416
74x17 6 hex buffer gate open-collector 15 V / 40 mA 14 SN7417
74x18 2 dual 4-input NAND gate schmitt-trigger 14 SN74LS18
74x19 6 hex inverter gate schmitt-trigger 14 SN74LS19
74x20 2 dual 4-input NAND gate 14 SN74LS20
74x21 2 dual 4-input AND gate 14 SN74LS21
74x22 2 dual 4-input NAND gate open-collector 14 SN74LS22
74x23 2 dual 4-input NOR gate with strobe, one gate expandable with 74x60 16 SN7423
74x24 4 quad 2-input NAND gate schmitt-trigger 14 SN74LS24
74x25 2 dual 4-input NOR gate with strobe 14 SN7425
74x26 4 quad 2-input NAND gate open-collector 15 V 14 SN74LS26
74x27 3 triple 3-input NOR gate 14 SN74LS27
74x28 4 quad 2-input NOR gate driver NO=30 14 SN74LS28
74x29 2 dual 4-input NOR gate 14 US7429A
74x30 1 single 8-input NAND gate 14 SN74LS30
74x31 6 hex delay elements 16 SN74LS31
74x32 4 quad 2-input OR gate 14 SN74LS32
74x33 4 quad 2-input NOR gate open-collector driver NO=30 14 SN74LS33
74x34 6 hex buffer gate 14 MM74HC34
74x35 6 hex buffer gate open-collector 14 SN74ALS35
74x36 4 quad 2-input NOR gate (different pinout than 7402) 14 SN74HC36
74x37 4 quad 2-input NAND gate driver NO=30 14 SN74LS37
74x38 4 quad 2-input NAND gate open-collector driver NO=30 14 SN74LS38
74x39 4 quad 2-input NAND gate (different pinout than 7438) open-collector 60 mA 14 SN7439
74x40 2 dual 4-input NAND gate driver NO=30 14 SN74LS40
74x41 1 BCD to decimal decoder / Nixie tube driver open-collector 70 V 16 DM7441A
74x42 1 BCD to decimal decoder 16 SN74LS42
74x43 1 excess-3 to decimal decoder 16 SN7443A
74x44 1 Gray code to decimal decoder 16 SN7444A
74x45 1 BCD to decimal decoder/driver open-collector 30 V / 80 mA 16 SN7445
74x46 1 BCD to 7-segment display decoder/driver open-collector 30 V 16 SN7446A
74x47 1 BCD to 7-segment decoder/driver open-collector 15 V 16 SN74LS47
74x48 1 BCD to 7-segment decoder/driver open-collector, 2 kΩ pull-up 16 SN74LS48
74x49 1 BCD to 7-segment decoder/driver open-collector 14 SN74LS49
74x50 2 dual 2-2-input AND-OR-Invert gate, one gate expandable 14 SN7450
7451, 74H51, 74S51 2 dual 2-2-input AND-OR-Invert gate 14 SN7451
74L51, 74LS51 2 3-3-input AND-OR-Invert gate and 2-2-input AND-OR-Invert gate 14 SN74LS51
74x52 1 3-2-2-2-input AND-OR gate, expandable with 74x61 14 SN74H52
7453 1 2-2-2-2-input AND-OR-Invert gate, expandable 14 SN7453
74H53 1 3-2-2-2-input AND-OR-Invert gate, expandable 14 SN74H53
7454 1 2-2-2-2-input AND-OR-Invert gate 14 SN7454
74H54 1 3-2-2-2-input AND-OR-Invert gate 14 SN74H54
74L54, 74LS54 1 3-3-2-2-input AND-OR-Invert gate 14 SN74LS54
74x55 1 4-4-input AND-OR-Invert gate, 74H55 is expandable 14 SN74LS55
74x56 1 50:1 frequency divider 8 SN74LS56
74x57 1 60:1 frequency divider 8 SN74LS57
74x58 2 3-3-input AND-OR gate and 2-2-input AND-OR gate 14 74HC58
74x59 2 dual 3-2-input AND-OR-Invert gate 14 US7459A
74x60 2 dual 4-input expander for 74x23, 74x50, 74x53, 74x55 14 SN7460
74x61 3 triple 3-input expander for 74x52 14 SN74H61
74x62 1 3-3-2-2-input AND-OR expander for 74x50, 74x53, 74x55 14 SN74H62
74x63 6 hex current sensing interface gates 14 SN74LS63
74x64 1 4-3-2-2-input AND-OR-Invert gate 14 SN74S64
74x65 1 4-3-2-2 input AND-OR-Invert gate open-collector 14 SN74S65
74x67 1 AND gated J-K master-slave flip-flop, asynchronous preset and clear (improved 74L72) (16) BL54L67Y
74L68 2 dual J-K flip-flop, asynchronous clear (improved 74L73) (18) BL54L68Y
74LS68 2 dual 4-bit decade counters 16 SN74LS68
74L69 2 dual J-K flip-flop, asynchronous preset, common clock and clear (18) BL54L69Y
74LS69 2 dual 4-bit binary counters 16 SN74LS69
74x70 1 AND-gated positive edge triggered J-K flip-flop, asynchronous preset and clear 14 SN7470
74H71 1 AND-or-gated J-K master-slave flip-flop, preset 14 SN74H71
74L71 1 AND-gated R-S master-slave flip-flop, preset and clear 14 SN54L71
74x72 1 AND gated J-K master-slave flip-flop, asynchronous preset and clear 14 SN7472
74x73 2 dual J-K flip-flop, asynchronous clear 14 SN54LS73A
74x74 2 dual D positive edge triggered flip-flop, asynchronous preset and clear 14 SN74LS74A
74x75 2 4-bit bistable latch, complementary outputs 16 SN74LS75
74x76 2 dual J-K flip-flop, asynchronous preset and clear 16 SN74LS76A
74x77 1 4-bit bistable latch 14 SN74LS77
74H78 2 dual positive pulse triggered J-K flip-flop, preset, common clock and common clear 14 SN74H78
74L78 2 dual positive pulse triggered J-K flip-flop, preset, common clock and common clear 14 SN54L78
74LS78 2 dual negative edge triggered J-K flip-flop, preset, common clock and common clear 14 SN74LS78A
74x79 2 dual D positive edge triggered flip-flop, asynchronous preset and clear 14 MC7479
74x80 1 gated full adder 14 SN7480
74x81 1 16-bit RAM 14 SN7481A
74x82 1 2-bit binary full adder 14 SN7482
74x83 1 4-bit binary full adder 16 SN74LS83A
74x84 1 16-bit RAM 16 SN7484A
74x85 1 4-bit magnitude comparator 16 SN74LS85
74x86 4 quad 2-input XOR gate 14 SN74LS86A
74x87 1 4-bit true/complement/zero/one element 14 SN74H87
74x88 1 256-bit ROM (32x8) open-collector 16 SN7488A
74x89 1 64-bit RAM (16x4), inverted outputs open-collector 16 SN7489
74x90 1 decade counter (separate divide-by-2 and divide-by-5 sections) 14 SN74LS90
74x91 1 8-bit shift register, serial in, serial out, gated input 14 SN74LS91
74x92 1 divide-by-12 counter (separate divide-by-2 and divide-by-6 sections) 14 SN74LS92
74x93 1 4-bit binary counter (separate divide-by-2 and divide-by-8 sections) 14 SN74LS93
74x94 1 4-bit shift register, dual asynchronous presets 16 SN7494
74x95 1 4-bit shift register, parallel in, parallel out, serial input 14 SN74LS95B
74x96 1 5-bit parallel-in/parallel-out shift register, asynchronous preset 16 SN74LS96
74x97 1 synchronous 6-bit binary rate multiplier 16 SN7497
74x98 1 4-bit data selector/storage register 16 SN54L98
74x99 1 4-bit bidirectional universal shift register 16 SN54L99

74x100 – 74x199

Part number
Units Description Input Output Pins Datasheet
74x100 2 dual 4-bit bistable latch 24 SN74100
74x101 1 AND-OR-gated J-K negative-edge-triggered flip-flop, preset 14 SN74H101
74x102 1 AND-gated J-K negative-edge-triggered flip-flop, preset and clear 14 SN74H102
74x103 2 dual J-K negative-edge-triggered flip-flop, clear 14 SN74H103
74x104 1 J-K master-slave flip-flop 14 SN74104
74x105 1 J-K master-slave flip-flop, J2 and K2 inverted 14 SN74105
74x106 2 dual J-K negative-edge-triggered flip-flop, preset and clear 16 SN74H106
74x107 2 dual J-K flip-flop, clear 14 SN74107
74x107A 2 dual J-K negative-edge-triggered flip-flop, clear 14 SN74LS107A
74x108 2 dual J-K negative-edge-triggered flip-flop, preset, common clear and common clock 14 SN74H108
74x109 2 dual J-Not-K positive-edge-triggered flip-flop, clear and preset 16 SN74109
74x110 1 AND-gated J-K master-slave flip-flop, data lockout 14 SN74110
74x111 2 dual J-K master-slave flip-flop, data lockout, reset, set 16 TL74111N
74x112 2 dual J-K negative-edge-triggered flip-flop, clear and preset 16 SN74LS112A
74x113 2 dual J-K negative-edge-triggered flip-flop, preset 14 SN74LS113A
74x114 2 dual J-K negative-edge-triggered flip-flop, preset, common clock and clear 14 SN74LS114A
74x115 2 dual J-K master-slave flip-flop, data lockout, reset 14 TL74115N
74116 2 dual 4-bit latch, clear 24 SN74116
74H116 1 AND-gated J-K flip flop 14 MC74H116
74x117 1 AND-gated J-K flip flop, one J and K input inverted 14 MC74H117
74x118 6 hex set/reset latch, common reset 16 ITT74118
74119 6 hex set/reset latch 24 TL74119N
74H119 2 dual J-K flip-flop, shared clear and clock inputs 14 MC74H119
74120 2 dual pulse synchronizer/drivers 15 kΩ pull-up 16 SN74120
74H120 2 dual J-K flip-flop, separate clock inputs 14 MC74H120
74x121 1 monostable multivibrator schmitt-trigger 14 SN74121
74x122 1 retriggerable monostable multivibrator, clear 14 SN74122
74x123 2 dual retriggerable monostable multivibrator, clear 16 SN74123
74x124 2 dual voltage-controlled oscillator analog 16 SN74S124
74x125 4 quad bus buffer, negative enable three-state 14 SN74LS125A
74x126 4 quad bus buffer, positive enable three-state 14 SN74LS126A
74x128 4 quad 2-input NOR gate driver 50 Ω 14 SN74128
74x130 2 retriggerable monostable multivibrator 16 SN74130
74x131 4 quad 2-input AND gate open-collector 15 V 14 ITT74131
74x132 4 quad 2-input NAND gate schmitt-trigger 14 SN74LS132
74x133 1 single 13-input NAND gate 16 SN54ALS133
74x134 1 single 12-input NAND gate three-state 16 SN74S134
74x135 4 quad XOR/XNOR gate, two inputs to select logic type 16 SN74S135
74x136 4 quad 2-input XOR gate open-collector 14 SN74LS136
74x137 1 3-line to 8-line decoder/demultiplexer, address latch, inverting outputs 16 SN74LS137
74x138 1 3-line to 8-line decoder/demultiplexer, inverting outputs 16 SN74LS138
74x139 2 dual 2 to 4-line decoder/demultiplexer, inverting outputs 16 SN74LS139A
74x140 2 dual 4-input NAND driver 50 Ω 14 SN74S140
74x141 1 BCD to decimal decoder/driver for cold-cathode indicator / Nixie tube open-collector 60 V 16 DM74141
74x142 1 decade counter/latch/decoder/driver for Nixie tubes open-collector 60 V 16 SN74142
74x143 1 decade counter/latch/decoder/7-segment driver constant current 15 mA 24 SN74143
74x144 1 decade counter/latch/decoder/7-segment driver open-collector 15 V / 25 mA 24 SN74143
74x145 1 BCD to decimal decoder/driver open-collector 15 V / 80 mA 16 SN74145
74x146 1 3-line to 8-line decoder MCE74H146
74x147 1 10-line to 4-line priority encoder 16 SN74147
74x148 1 8-line to 3-line priority encoder 16 SN74148
74x149 1 8-line to 8-line priority encoder 20 MM74HCT149
74x150 1 16-line to 1-line data selector/multiplexer 24 SN74150
74x151 1 8-line to 1-line data selector/multiplexer 16 SN74151A
74x152 1 8-line to 1-line data selector/multiplexer, inverting output 14 SN54152A
74x153 2 dual 4-line to 1-line data selector/multiplexer, non-inverting outputs 16 SN74153
74x154 1 4-line to 16-line decoder/demultiplexer, inverting outputs 24 SN74154
74x155 2 dual 2-line to 4-line decoder/demultiplexer, inverting outputs 16 SN74155
74x156 2 dual 2-line to 4-line decoder/demultiplexer, inverting outputs open-collector 16 SN74156
74x157 4 quad 2-line to 1-line data selector/multiplexer, non-inverting outputs 16 SN74157
74x158 4 quad 2-line to 1-line data selector/multiplexer, inverting outputs 16 SN74LS158
74x159 1 4-line to 16-line decoder/demultiplexer open-collector 24 SN74159
74x160 1 synchronous presettable 4-bit decade counter, asynchronous clear 16 SN74160
74x161 1 synchronous presettable 4-bit binary counter, asynchronous clear 16 SN74161
74x162 1 synchronous presettable 4-bit decade counter, synchronous clear 16 SN74162
74x163 1 synchronous presettable 4-bit binary counter, synchronous clear 16 SN74163
74x164 1 8-bit parallel-out serial shift register, asynchronous clear 14 SN74164
74x165 1 8-bit serial shift register, parallel load, complementary outputs 16 SN74165
74x166 1 parallel-load 8-bit shift register 16 SN74166
74x167 1 synchronous decade rate multiplier 16 SN74167
74x168 1 synchronous presettable 4-bit up/down decade counter 16 DM74LS168
74x169 1 synchronous presettable 4-bit up/down binary counter 16 SN74LS169B
74x170 1 16-bit register file (4x4) open-collector 16 SN74170
74x171 4 quad D flip-flops, clear 16 SN74LS171
74x172 1 16-bit multiple port register file (8x2) three-state 24 SN74172
74x173 4 quad D flip-flop, asynchronous clear three-state 16 SN74173
74x174 6 hex D flip-flop, common asynchronous clear 16 SN74174
74x175 4 quad D edge-triggered flip-flop, complementary outputs and asynchronous clear 16 SN74175
74x176 1 presettable decade (bi-quinary) counter/latch 14 SN74176
74x177 1 presettable binary counter/latch 14 SN74177
74x178 1 4-bit parallel-access shift register 14 SN74178
74x179 1 4-bit parallel-access shift register, asynchronous clear input, complementary Qd output 16 SN74179
74x180 1 9-bit odd/even parity bit generator and checker 14 SN74180
74x181 1 4-bit arithmetic logic unit and function generator 24 SN74LS181
74x182 1 lookahead carry generator 16 SN74S182
74x183 2 dual carry-save full adder 14 SN74LS183
74x184 1 BCD to binary converter open-collector 16 SN74184
74x185 1 6-bit binary to BCD converter open-collector 16 SN74185A
74x186 1 512-bit ROM (64x8) open-collector 24 SN74186
74x187 1 1024-bit ROM (256x4) open-collector 16 SN74187
74x188 1 256-bit PROM (32x8) open-collector 16 SN74S188
74x189 1 64-bit RAM (16x4), inverting outputs three-state 16 SN74S189
74x190 1 synchronous presettable up/down decade counter 16 SN74190
74x191 1 synchronous presettable up/down binary counter 16 SN74191
74x192 1 synchronous presettable up/down decade counter, clear 16 SN74192
74x193 1 synchronous presettable up/down 4-bit binary counter, clear 16 SN74193
74x194 1 4-bit bidirectional universal shift register 16 SN74194
74x195 1 4-bit parallel-access shift register 16 SN74195
74x196 1 presettable decade counter/latch 14 SN74196
74x197 1 presettable binary counter/latch 14 SN74197
74x198 1 8-bit bidirectional universal shift register 24 SN74198
74x199 1 8-bit universal shift register, J-Not-K serial inputs 24 SN74199

74x200 – 74x299

Part number
Units Description Input Output Pins Datasheet
74x200 1 256-bit RAM (256x1) three-state 16 DM74S200
74x201 1 256-bit RAM (256x1) three-state 16 SN74S201
74x202 1 256-bit RAM (256x1) with power down three-state 16 SN74LS202
74x206 1 256-bit RAM (256x1) open-collector 16 DM74S206
74x207 1 1024-bit RAM (256x4) three-state 16 SN74LS207
74x208 1 1024-bit RAM (256x4), separate data in- and outputs three-state 20 SN74LS208
74x209 1 1024-bit RAM (1024x1) three-state 16 SN74S209
74x210 8 octal buffer, inverting three-state 20 SN74LS210
74x211 1 144-bit RAM (16x9) with output latch three-state 20 74F211
74x212 1 144-bit RAM (16x9) three-state 20 74F212
74x213 1 192-bit RAM (16x12) three-state 20 74F213
74x214 1 1024-bit RAM (1024x1) three-state 16 SN74LS214
74x215 1 1024-bit RAM (1024x1) with power-down mode three-state 16 SN74LS215
74x217 1 256-bit RAM (64x4) three-state 20 SN74ALS217
74x218 1 256-bit RAM (32x8) three-state 20 SN74ALS218
74x219 1 64-bit RAM (16x4), non-inverting outputs three-state 16 SN74LS219
74x221 2 dual monostable multivibrator schmitt-trigger 16 SN74221
74x222 1 64-bit FIFO memory (16x4), synchronous, input/output ready enable three-state 20 SN74LS722
74x224 1 64-bit FIFO memory (16x4), synchronous three-state 16 SN74LS724
74x225 1 80-bit FIFO memory (16x5), asynchronous three-state 20 SN74S225
74x226 1 4-bit parallel latched bus transceiver three-state 16 SN74S226
74x227 1 64-bit FIFO memory (16x4), synchronous, input/output ready enable open-collector 20 SN74LS727
74x228 1 64-bit FIFO memory (16x4), synchronous open-collector 20 SN74LS728
74x229 1 80-bit FIFO memory (16x5), asynchronous three-state 20 SN74ALS229B
74x230 8 octal buffer/driver, true and complementary outputs three-state 20 SN74AS230
74x231 8 octal buffer and line driver, G and /G complementary inputs three-state 20 SN74AS231
74x232 1 64-bit FIFO memory (16x4), asynchronous three-state 16 SN74ALS232B
74x233 1 80-bit FIFO memory (16x5), asynchronous three-state 20 SN74ALS233B
74x234 1 256-bit FIFO memory (64x4), asynchronous three-state 16 SN74ALS234
74x235 1 320-bit FIFO memory (64x5), asynchronous three-state 20 SN74ALS235
74x236 1 256-bit FIFO memory (64x4), asynchronous three-state 16 SN74ALS236
74x237 1 3-of-8 decoder/demultiplexer, address latch, active high outputs 16 CD74HC237
74x238 1 3-of-8 decoder/demultiplexer, active high outputs 16 CD74HC238
74x239 2 dual 2-of-4 decoder/demultiplexer, active high outputs 16 SN74HC239
74x240 8 octal buffer, inverting outputs schmitt-trigger three-state 20 SN74LS240
74x241 8 octal buffer, non-inverting outputs schmitt-trigger three-state 20 SN74LS241
74x242 4 quad bus transceiver, inverting outputs schmitt-trigger three-state 14 SN74LS242
74x243 4 quad bus transceiver, non-inverting outputs schmitt-trigger three-state 14 SN74LS243
74x244 8 octal buffer, non-inverting outputs schmitt-trigger three-state 20 SN74LS244
74x245 8 octal bus transceiver, non-inverting outputs schmitt-trigger three-state 20 SN74LS245
74x246 1 BCD to 7-segment decoder/driver open-collector 30 V 16 SN74246
74x247 1 BCD to 7-segment decoder/driver open-collector 15 V 16 SN74247
74x248 1 BCD to 7-segment decoder/driver open-collector, 2 kΩ pull-up 16 SN74248
74x249 1 BCD to 7-segment decoder/driver open-collector 16 SN74249
74x250 1 1 of 16 data selector/multiplexer three-state 24 SN74AS250
74x251 1 8-line to 1-line data selector/multiplexer, complementary outputs three-state 16 SN74251
74x253 2 dual 4-line to 1-line data selector/multiplexer three-state 16 SN74LS253
74x255 2 dual 2-line to 4-line decoder/demultiplexer, inverting outputs three-state 16 74LS255
74x256 2 dual 4-bit addressable latch 16 MC74F256
74x257 4 quad 2-line to 1-line data selector/multiplexer, non-inverting outputs three-state 16 SN74LS257B
74x258 4 quad 2-line to 1-line data selector/multiplexer, inverting outputs three-state 16 SN74LS258B
74x259 1 8-bit addressable latch 16 SN74259
74x260 2 dual 5-input NOR gate 14 SN74LS260
74x261 1 2-bit by 4-bit parallel binary multiplier 16 SN74LS261
74x264 1 look ahead carry generator 16 SN74AS264
74x265 4 quad complementary output elements 16 SN74265
74x266 4 quad 2-input XNOR gate open-collector 14 SN74LS266
74x268 6 hex D-type latches, common output control, common enable three-state 16 SN74S268
74x269 1 8-bit bidirectional binary counter 24 MC74F269
74x270 1 2048-bit ROM (512x4) open-collector 16 SN74S270
74x271 1 2048-bit ROM (256x8) open-collector 20 SN74S271
74x273 1 8-bit register, asynchronous clear 20 SN74273
74x274 1 4-bit by 4-bit binary multiplier three-state 20 SN74S274
74x275 1 7-bit slice Wallace tree three-state 16 SN74S275
74x276 4 quad J-Not-K edge-triggered flip-flops, separate clocks, common preset and clear 20 SN74276
74x278 1 4-bit cascadeable priority registers, latched data inputs 14 SN74278
74x279 4 quad set-reset latch 16 SN74279
74x280 1 9-bit odd/even parity bit generator/checker 14 SN74LS280
74x281 1 4-bit parallel binary accumulator 24 SN74S281
74x282 1 look-ahead carry generator, selectable carry inputs 20 SN74AS282
74x283 1 4-bit binary full adder (has carry in function) 16 SN74283
74x284 1 4-bit by 4-bit parallel binary multiplier (low order 4 bits of product) 16 SN74284
74x285 1 4-bit by 4-bit parallel binary multiplier (high order 4 bits of product) 16 SN74285
74x286 1 9-bit parity generator/checker, bus driver parity I/O port 14 SN74AS286
74x287 1 1024-bit PROM (256x4) three-state 16 SN74S287
74x288 1 256-bit PROM (32x8) three-state 16 SN74S288
74x289 1 64-bit RAM (16x4), inverted outputs open-collector 16 SN74S289
74x290 1 decade counter (separate divide-by-2 and divide-by-5 sections) 14 SN74290
74x292 1 programmable frequency divider/digital timer 16 SN74LS292
74x293 1 4-bit binary counter (separate divide-by-2 and divide-by-8 sections) 14 SN74293
74x294 1 programmable frequency divider/digital timer 16 SN74LS294
74x295 1 4-bit bidirectional shift register three-state 14 SN74LS295B
74x297 1 digital phase-locked loop filter 16 SN74LS297
74x298 4 quad 2-input multiplexer, storage 16 SN74298
74x299 1 8-bit bidirectional universal shift/storage register three-state 20 SN74LS299

74x300 – 74x399

Part number
Units Description Input Output Pins Datasheet
74x300 1 256-bit RAM (256x1) open-collector 16 SN74LS300A
74x301 1 256-bit RAM (256x1) open-collector 16 SN74S301
74x302 1 256-bit RAM (256x1) open-collector 16 SN74LS302
74x309 1 1024-bit RAM (1024x1) open-collector 16 SN74S309
74x310 8 octal buffer, inverting Schmitt-trigger three-state 20 SN74LS310
74x311 1 144-bit RAM (16x9) with output latch open-collector 20 74F311
74x312 1 144-bit RAM (16x9) open-collector 20 74F312
74x313 1 192-bit RAM (16x12) open-collector 20 74F313
74x314 1 1024-bit RAM (1024x1) open-collector 16 SN74LS314
74x315 1 1024-bit RAM (1024x1) with power-down mode open-collector 16 SN74LS315
74x317 1 256-bit RAM (64x4) open-collector 20 SN74ALS317
74x318 1 256-bit RAM (32x8) open-collector 20 SN74ALS318
74x319 1 64-bit RAM (16x4) open-collector 16 SN74LS319
74x320 1 crystal-controlled oscillator 16 SN74LS320
74x321 1 crystal-controlled oscillators, F/2 and F/4 count-down outputs 16 SN74LS320
74x322 1 8-bit shift register, sign extend three-state 20 SN74LS322A
74x323 1 8-bit bidirectional universal shift/storage register, synchronous clear three-state 20 SN74LS323
74x324 1 voltage-controlled oscillator (or crystal controlled), enable input, complementary outputs analog 14 SN74LS324
74x325 2 dual voltage-controlled oscillator (or crystal controlled), complementary outputs analog 16 SN74LS325
74x326 2 dual voltage-controlled oscillator (or crystal controlled), enable input, complementary outputs analog 16 SN74LS326
74x327 2 dual voltage-controlled oscillator (or crystal controlled) analog 14 SN74LS327
74x330 1 programmable logic array (12 inputs, 50 terms, 6 outputs) three-state 20 SN74S330
74x331 1 programmable logic array (12 inputs, 50 terms, 6 outputs) open-collector, 2.5 kΩ pull-up 20 SN74S331
74x340 8 octal buffer, inverting outputs Schmitt-trigger three-state 20 SN74S340
74x341 8 octal buffer, non-inverting outputs Schmitt-trigger three-state 20 SN74S341
74x344 8 octal buffer, non-inverting outputs Schmitt-trigger three-state 20 SN74S344
74x347 1 BCD-to-7 segment decoders/drivers, low voltage version of 7447 open-collector 16 SN74LS347
74x348 1 8 to 3-line priority encoder three-state 16 SN74LS348
74x350 1 4-bit shifter three-state 16 SN74S350
74x351 2 dual 8-line to 1-line data selectors/multiplexers, 4 common data inputs three-state 20 SN74351
74x352 2 dual 4-line to 1-line data selectors/multiplexers, inverting outputs 16 SN74LS352
74x353 2 dual 4-line to 1-line data selectors/multiplexers, inverting outputs three-state 16 SN74LS353
74x354 1 8-line to 1-line data selector/multiplexer, transparent registers three-state 20 CD74HC354
74x355 1 8-line to 1-line data selector/multiplexer, transparent registers open-collector 20 SN74LS355
74x356 1 8-line to 1-line data selector/multiplexer, edge-triggered registers three-state 20 CD74HCT356
74x357 1 8-line to 1-line data selector/multiplexer, edge-triggered registers open-collector 20 SN74LS357
74x361 1 bubble memory function timing generator 22 SN74LS361
74x362 1 four-phase clock generator/driver for Texas Instruments TMS9900 20 SN74LS362
74x363 1 octal transparent latch three-state 20 SN74LS363
74x364 1 octal edge-triggered D-type register three-state 20 SN74LS364
74x365 6 hex buffer, non-inverting outputs three-state 16 SN74LS365A
74x366 6 hex buffer, inverting outputs three-state 16 SN74LS366A
74x367 6 hex buffer, non-inverting outputs three-state 16 SN74LS367A
74x368 6 hex buffer, inverting outputs three-state 16 SN74LS368A
74x370 1 2048-bit ROM (512x4) three-state 16 SN74S370
74x371 1 2048-bit ROM (256x8) three-state 20 SN74S371
74x373 8 octal transparent latch three-state 20 SN74LS373
74x374 8 octal register three-state 20 SN74LS374
74x375 4 quad bistable latch 16 SN74LS375
74x376 4 quad J-Not-K flip-flop, common clock and common clear 16 SN74376
74x377 1 8-bit register, clock enable 20 SN74LS377
74x378 1 6-bit register, clock enable 16 SN74LS378
74x379 1 4-bit register, clock enable and complementary outputs 16 SN74LS379
74x380 1 8-bit multifunction register three-state 24 SN74LS380
74x381 1 4-bit arithmetic logic unit/function generator, generate and propagate outputs 20 SN74LS381A
74x382 1 4-bit arithmetic logic unit/function generator, ripple carry and overflow outputs 20 SN74LS382
74x383 1 8-bit register open-collector 20 SN74S383
74x384 1 8-bit by 1-bit two's complement multipliers 16 SN74LS384
74x385 4 quad serial adder/subtractor 20 SN74LS385
74x386 4 quad 2-input XOR gate 14 SN74LS386
74x387 1 1024-bit PROM (256x4) open-collector 16 SN74S387
74x390 2 dual 4-bit decade counter 16 SN74LS390
74x393 2 dual 4-bit binary counter 14 SN74LS393
74x395 1 4-bit cascadable shift register three-state 16 SN74LS395A
74x396 8 octal storage registers, parallel access 16 SN74LS396
74x398 4 quad 2-input multiplexers, storage and complementary outputs 20 SN74LS398
74x399 4 quad 2-input multiplexer, storage 16 SN74LS399

74x400 – 74x499

Part number
Units Description Input Output Pins Datasheet
74x401 1 CRC generator/checker 14 74F401
74x402 1 serial data polynomial generator/checker 16 74F402
74x403 1 64-bit FIFO memory (16x4) three-state 24 74F403
74x405 1 3-line to 8-line decoder (equivalent to Intel 8205) 16 UCY74S405
74x406 1 3-line to 8-line decoder 14 MC74406P
74x407 1 data access register three-state 24 74F407
74x408 1 controller/driver for 16k/64k/256k dRAM 48 SN74S408
74x409 1 controller/driver for 16k/64k/256k dRAM 48 SN74S409
74x410 1 64-bit RAM (16x4) with output register three-state 18 74F410
74x411 1 FIFO RAM controller 40 74F411
74x412 1 multi-mode buffered 8-bit latches (equivalent to Intel 3212/8212) three-state 24 SN74S412
74x413 1 256-bit FIFO memory (64x4) 16 74F413
74x414 1 interrupt priority controller for Intel 8080 (equivalent to Intel 8214) 24 UCY74S414
74x416 1 4-bit bidirectional bus transceiver, non-inverting (equivalent to Intel 8216) three-state 16 UCY74S416
74x418 1 32-bit error detection and correction circuit three-state 48 74F418
74x420 1 32-bit check bit / syndrome bit generator three-state 48 74F420
74x422 1 retriggerable monostable multivibrators, two inputs 14 SN74LS422
74x423 2 dual retriggerable monostable multivibrator 16 SN74LS423
74x424 1 two-phase clock generator/driver for Intel 8080 (equivalent to Intel 8224) 16 SN74LS424
74x425 4 quad bus buffers, active low enables three-state 14 SN74425
74x426 4 quad bus buffers, active high enables three-state 14 SN74426
74x428 1 system controller for Intel 8080A (equivalent to Intel 8228) 28 SN74S428
74x430 1 cyclic redundancy checker/corrector 28 74F430
74x432 1 8-bit multi-mode buffered latch three-state 24 74F432
74x433 1 256-bit FIFO memory (64x4) three-state 24 74F433
74x436 1 line driver/memory driver circuits - MOS memory interface, damping output resistor 16 SN74S436
74x437 1 line driver/memory driver circuits - MOS memory interface 16 SN74S437
74x438 1 system controller for Intel 8080A (equivalent to Intel 8238) 28 SN74S438
74x440 4 quad tridirectional bus transceiver, non-inverting outputs open-collector 20 SN74LS440
74x441 4 quad tridirectional bus transceiver, inverting outputs open-collector 20 SN74LS441
74x442 4 quad tridirectional bus transceiver, non-inverting outputs three-state 20 SN74LS442
74x443 4 quad tridirectional bus transceiver, inverting outputs three-state 20 SN74LS443
74x444 4 quad tridirectional bus transceiver, inverting and non-inverting outputs three-state 20 SN74LS444
74x445 1 BCD-to-decimal decoders/drivers driver 80 mA 16 SN74LS445
74x446 4 quad bus transceivers, direction controls, inverting outputs three-state 16 SN74LS446
74x447 1 BCD-to-7-segment decoders/drivers, low voltage version of 74247 open-collector 16 SN74LS447
74x448 4 quad tridirectional bus transceiver, inverting and non-inverting outputs open-collector 20 SN74LS448
74x449 4 quad bus transceivers, direction controls, non-inverting outputs three-state 16 SN74LS449
74x450 1 16-to-1 multiplexer, complementary outputs 24 SN74LS450
74x451 2 dual 8-to-1 multiplexer 24 SN74LS451
74x452 2 dual decade counter, synchronous 16 MC74452
74453 2 dual binary counter, synchronous 16 MC74453
74LS453 4 quad 4-to-1 multiplexer 24 SN74LS453
74x454 2 dual decade up/down counter, synchronous, preset input 24 MC74454
74455 2 dual binary up/down counter, synchronous, preset input 24 MC74455
74F455 1 octal buffer / line driver with parity, inverting three-state 24 74F455
74x456 1 octal buffer / line driver with parity, non-inverting three-state 24 74F456
74x460 1 10-bit comparator 24 SN74LS460
74x461 1 8-bit presettable binary counter three-state 24 SN74LS461
74x465 8 octal buffer, non-inverting outputs three-state 20 SN74LS465
74x466 8 octal buffers, inverting outputs three-state 20 SN74LS466
74x467 8 octal buffers, non-inverting outputs three-state 20 SN74LS467
74x468 8 octal buffers, inverting outputs three-state 20 SN74LS468
74x469 1 8-bit synchronous up/down counter, parallel load and hold capability three-state 24 SN74LS469
74x470 1 2048-bit PROM (256x8) open-collector 20 SN74S470
74x471 1 2048-bit PROM (256x8) three-state 20 SN74S471
74x472 1 4096-bit PROM (512x8) three-state 20 SN74S472
74x473 1 4096-bit PROM (512x8) open-collector 20 SN74S473
74x474 1 4096-bit PROM (512x8) three-state 24 SN74S474
74x475 1 4096-bit PROM (512x8) open-collector 24 SN74S475
74x476 1 4096-bit PROM (1024x4) three-state 18 SN74S476
74x477 1 4096-bit PROM (1024x4) open-collector 18 SN74S477
74x478 1 8192-bit PROM (1024x8) three-state 24 SN74S478
74x479 1 8192-bit PROM (1024x8) open-collector 24 SN74S479
74x481 1 4-bit slice cascadable processor elements (48) SN74S481
74x482 1 4-bit slice expandable control elements 20 SN74S482
74x484 1 BCD-to-binary converter three-state 20 SN74S484A
74x485 1 binary-to-BCD converter three-state 20 SN74S485A
74x488 1 IEEE-488 bus interface 48 74ACT488
74x490 2 dual decade counter 16 SN74490
74x491 1 10-bit binary up/down counter, limited preset three-state 24 SN74LS491
74x498 1 8-bit bidirectional shift register, parallel inputs three-state 24 SN74LS498

74x500 – 74x599

Part number
Units Description Input Output Pins Datasheet
74x500 1 6-bit flash analog-to-digital converter (ADC) analog 24 74F500
74x502 1 8-bit successive approximation register 16 74LS502
74x503 1 8-bit successive approximation register with expansion control 16 74LS503
74x504 1 12-bit successive approximation register with expansion control 24 74LS504
74x505 1 8-bit successive approximation ADC analog three-state 24 74F505
74x508 1 8-bit multiplier/divider 24 SN74S508
74x516 1 16-bit multiplier/divider 24 SN74S516
74x518 1 8-bit comparator 20 kΩ pull-up open-collector 20 SN74ALS518
74x519 1 8-bit comparator open-collector 20 SN74ALS519
74x520 1 8-bit comparator, inverting output 20 kΩ pull-up 20 SN74ALS520
74x521 1 8-bit comparator, inverting output 20 SN74ALS521
74x522 1 8-bit comparator, inverting output 20 kΩ pull-up open-collector 20 SN74ALS522
74x524 1 8-bit registered comparator open-collector 20 74F524
74x525 1 16-bit programmable counter 28 74F525
74x526 1 fuse programmable identity comparator, 16-bit 20 SN74ALS526
74x527 1 fuse programmable identity comparator, 8-bit + 4-bit conventional Identity comparator 20 SN74ALS527
74x528 1 fuse programmable Identity comparator, 12-bit 16 SN74ALS528
74x531 8 octal transparent latch three-state 20 SN74S531
74x532 8 octal register three-state 20 SN74S532
74x533 1 octal transparent latch, inverting outputs three-state 20 CD74HC533
74x534 1 octal register, inverting outputs three-state 20 CD74HC534
74x535 1 octal transparent latch, inverting outputs three-state 20 SN74S535
74x536 1 octal register, inverting outputs three-state 20 SN74S536
74x537 1 BCD to decimal decoder three-state 20 MC74F537
74x538 1 3-line to 8-line decoder/demultiplexer three-state 20 SN74ALS538
74x539 2 dual 2-line to 4-line decoder/demultiplexer three-state 20 SN74ALS539
74x540 1 inverting octal buffer schmitt-trigger three-state 20 SN74LS540
74x541 1 non-inverting octal buffer schmitt-trigger three-state 20 SN74LS541
74x543 1 octal registered transceiver, non-inverting three-state 24 SN74F543
74x544 1 octal registered transceiver, inverting three-state 24 MC74F544
74x545 1 octal bidirectional transceiver, non-inverting three-state 20 74F545
74x547 1 3-line to 8-line decoder/demultiplexer with address latches and acknowledge output 20 74F547
74x548 1 3-line to 8-line decoder/demultiplexer with acknowledge output 20 74F548
74x550 1 octal registered transceiver with status flags, non-inverting three-state 28 74F550
74x551 1 octal registered transceiver with status flags, inverting three-state 28 74F551
74x552 1 octal registered transceiver with parity and flags three-state 28 74F552
74x557 1 8-bit by 8-bit multiplier three-state 40 SN74S557
74x558 1 8-bit by 8-bit multiplier three-state 40 SN74S558
74x559 1 8-bit expandable two's complement multiplier/divider three-state 24 74F559
74x560 1 4-bit decade counter three-state 20 SN74ALS560A
74x561 1 4-bit binary counter three-state 20 SN74ALS561A
74x563 1 8-bit D-type transparent latch, inverting outputs three-state 20 SN74ALS563B
74x564 1 8-bit D-type edge-triggered register, inverting outputs three-state 20 SN74ALS564B
74x568 1 decade up/down counter three-state 20 SN74ALS568A
74x569 1 binary up/down counter three-state 20 SN74ALS569A
74x570 1 2048-bit PROM (512x4) open-collector 16 DM74S570
74x571 1 2048-bit PROM (512x4) three-state 16 DM74S571
74x572 1 4096-bit PROM (1024x4) open-collector 18 DM74S572
74x573 1 octal D-type transparent latch three-state 20 SN74ALS573C
74x574 1 octal D-type edge-triggered flip-flop three-state 20 SN74BCT574
74x575 1 octal D-type edge-triggered flip-flop, synchronous clear three-state 24 SN74ALS575A
74x576 1 octal D-type edge-triggered flip-flop, inverting outputs three-state 20 SN74ALS576B
74x577 1 octal D-type edge-triggered flip-flop, synchronous clear, inverting outputs three-state 24 SN74ALS577A
74x579 1 8-bit bidirectional binary counter three-state 20 MC74F579
74x580 1 octal D-type transparent latch, inverting outputs three-state 20 SN74ALS580B
74x582 1 4-bit BCD arithmetic logic unit 24 74F582
74x583 1 4-bit BCD adder 16 74F583
74x588 1 octal bidirectional transceiver with IEEE-488 termination resistors three-state 20 74F588
74x589 1 8-bit shift register, input latch three-state 16 SN74LS589
74x590 1 8-bit binary counter, output registers three-state 16 SN74LS590
74x591 1 8-bit binary counter, output registers open-collector 16 SN74LS591
74x592 1 8-bit binary counter, input registers 16 SN74LS592
74x593 1 8-bit binary counter, input registers three-state 20 SN74LS593
74x594 1 8-bit shift registers, output latches 16 SN74LS594
74x595 1 8-bit shift registers, output latches, parallel outputs three-state 16 SN74LS595
74x596 1 8-bit shift registers, output latches, parallel outputs open-collector 16 SN74LS596
74x597 1 8-bit shift registers, input latches 16 SN74LS597
74x598 1 8-bit shift register, input latches three-state 20 SN74LS598
74x599 1 8-bit shift registers, output latches open-collector 16 SN74LS599

74x600 – 74x699

Part number
Units Description Input Output Pins Datasheet
74x600 1 dynamic memory refresh controller, transparent and burst modes, for 4K or 16K dRAM three-state 20 SN74LS600A
74x601 1 dynamic memory refresh controller, transparent and burst modes, for 64K dRAM three-state 20 SN74LS601A
74x602 1 dynamic memory refresh controller, cycle steal and burst modes, for 4K or 16K dRAM three-state 20 SN74LS602A
74x603 1 dynamic memory refresh controller, cycle steal and burst modes, for 64K dRAM three-state 20 SN74LS603A
74x604 1 octal 2-input multiplexer, latch, high-speed three-state 28 SN74LS604
74x605 1 octal 2-input multiplexer, latch, high-speed open-collector 28 SN74LS605
74x606 1 octal 2-input multiplexer, latch, glitch-free three-state 28 SN74LS606
74x607 1 octal 2-input multiplexer, latch, glitch-free open-collector 28 SN74LS607
74x608 1 memory cycle controller 16 SN74LS608
74x610 1 memory mapper, latched three-state 40 SN74LS610
74x611 1 memory mapper, latched open-collector 40 SN74LS611
74x612 1 memory mapper three-state 40 SN74LS612
74x613 1 memory mapper open-collector 40 SN74LS613
74x616 1 16-bit parallel error detection and correction three-state 40 SN74ALS616
74x617 1 16-bit parallel error detection and correction open-collector 40 SN74ALS617
74x620 1 octal bus transceiver, inverting three-state 20 SN74LS620
74x621 1 octal bus transceiver, non-inverting open-collector 20 SN74LS621
74x622 1 octal bus transceiver, inverting open-collector 20 SN74LS622
74x623 1 octal bus transceiver, non-inverting three-state 20 SN74LS623
74x624 1 voltage-controlled oscillator, enable control, range control, two-phase outputs analog 14 SN74LS624
74x625 2 dual voltage-controlled oscillator, two-phase outputs analog 16 SN74LS625
74x626 2 dual voltage-controlled oscillator, enable control, two-phase outputs analog 16 SN74LS626
74x627 2 dual voltage-controlled oscillator analog 14 SN74LS627
74x628 1 voltage-controlled oscillator, enable control, range control,
external temperature compensation, two-phase outputs
analog 14 SN74LS628
74x629 2 dual voltage-controlled oscillator, enable control, range control analog 16 SN74LS629
74x630 1 16-bit error detection and correction (EDAC) three-state 28 SN74LS630
74x631 1 16-bit error detection and correction open-collector 28 SN74LS631
74x632 1 32-bit parallel error detection and correction, byte-write three-state 52 SN74ALS632
74x633 1 32-bit parallel error detection and correction, byte-write open-collector 52 SN74ALS633
74x634 1 32-bit parallel error detection and correction three-state 48 SN74ALS634
74x635 1 32-bit parallel error detection and correction open-collector 48 SN74ALS635
74x636 1 8-bit parallel error detection and correction three-state 20 SN74LS636
74x637 1 8-bit parallel error detection and correction open-collector 20 SN74LS637
74x638 1 octal bus transceiver, inverting outputs three-state and open-collector 20 SN74LS638
74x639 1 octal bus transceiver, non-inverting outputs three-state and open-collector 20 SN74LS639
74x640 1 octal bus transceiver, inverting outputs three-state 20 SN74LS640
74x641 1 octal bus transceiver, non-inverting outputs open-collector 20 SN74LS641
74x642 1 octal bus transceiver, inverting outputs open-collector 20 SN74LS642
74x643 1 octal bus transceiver, mix of inverting and non-inverting outputs three-state 20 SN74LS643
74x644 1 octal bus transceiver, mix of inverting and non-inverting outputs open-collector 20 SN74LS644
74x645 1 octal bus transceiver, non-inverting outputs three-state 20 SN74LS645
74x646 1 octal bus transceiver/latch/multiplexer, non-inverting outputs three-state 24 SN74ALS646A
74x647 1 octal bus transceiver/latch/multiplexer, non-inverting outputs open-collector 24 SN74LS647
74x648 1 octal bus transceiver/latch/multiplexer, inverting outputs three-state 24 SN74ALS648A
74x649 1 octal bus transceiver/latch/multiplexer, inverting outputs open-collector 24 SN74LS649
74x651 1 octal bus transceiver/register, inverting outputs three-state 24 SN74ALS651A
74x652 1 octal bus transceiver/register, non-inverting outputs three-state 24 SN74ALS652A
74x653 1 octal bus transceiver/register, inverting outputs three-state and open-collector 24 SN74ALS653
74x654 1 octal bus transceiver/register, non-inverting outputs three-state and open-collector 24 SN74ALS654
74x655 1 octal buffer / line driver with parity, inverting three-state 24 74F655
74x656 1 octal buffer / line driver with parity, non-inverting three-state 24 74F656
74x657 1 octal bidirectional transceiver with 8-bit parity generator/checker three-state 24 SN74F657
74x658 1 octal bus transceiver, parity, inverting three-state 24 SN74HC658
74x659 1 octal bus transceiver, parity, non-inverting three-state 24 SN74HC658
74x664 1 octal bus transceiver, parity, inverting three-state 24 SN74HC664
74x665 1 octal bus transceiver, parity, non-inverting three-state 24 SN74HC665
74x666 1 8-bit D-type transparent read-back latch, non-inverting three-state 24 SN74ALS666
74x667 1 8-bit D-type transparent read-back latch, inverting three-state 24 SN74ALS667
74x668 1 synchronous 4-bit decade up/down counter 16 SN74LS668
74x669 1 synchronous 4-bit binary up/down counter 16 SN74LS669
74x670 1 16-bit register file (4x4) three-state 16 SN74LS670
74x671 1 4-bit bidirectional shift register/latch/multiplexer, direct clear three-state 20 SN74LS671
74x672 1 4-bit bidirectional shift register/latch/multiplexer, synchronous clear three-state 20 SN74LS672
74x673 1 16-bit serial-in, serial/parallel-out shift register, output storage registers three-state 24 SN74LS673
74x674 1 16-bit parallel-in, serial-out shift register three-state 24 SN74LS674
74x675 1 16-bit serial-in, serial/parallel-out shift register 24 74F675A
74x676 1 16-bit serial/parallel-in, serial-out shift register 24 74F676
74x677 1 16-bit address comparator, enable 24 SN74ALS677
74x678 1 16-bit address comparator, latch 24 SN74ALS678
74x679 1 12-bit address comparator, latch 20 SN74ALS679
74x680 1 12-bit address comparator, enable 20 SN74ALS680
74x681 1 4-bit parallel binary accumulator three-state 20 SN74LS681
74x682 1 8-bit magnitude comparator, P>Q output 20 kΩ pull-up 20 SN74LS682
74x683 1 8-bit magnitude comparator, P>Q output 20 kΩ pull-up open-collector 20 SN74LS683
74x684 1 8-bit magnitude comparator, P>Q output 20 SN74LS684
74x685 1 8-bit magnitude comparator, P>Q output open-collector 20 SN74LS685
74x686 1 8-bit magnitude comparator, P>Q output, enable 24 SN74LS686
74x687 1 8-bit magnitude comparator, P>Q output, enable open-collector 24 SN74LS687
74x688 1 8-bit magnitude comparator, enable 20 SN74LS688
74x689 1 8-bit magnitude comparator, enable open-collector 20 SN74LS689
74x690 1 4-bit decimal counter/latch/multiplexer, asynchronous clear three-state 20 SN74LS690
74x691 1 4-bit binary counter/latch/multiplexer, asynchronous clear three-state 20 SN74LS691
74x692 1 4-bit decimal counter/latch/multiplexer, synchronous clear three-state 20 SN74LS692
74x693 1 4-bit binary counter/latch/multiplexer, synchronous clear three-state 20 SN74LS693
74x694 1 4-bit decimal counter/latch/multiplexer, synchronous and asynchronous clears three-state 20 SN74ALS694
74x695 1 4-bit binary counter/latch/multiplexer, synchronous and asynchronous clears three-state 20 SN74ALS695
74x696 1 4-bit decimal counter/register/multiplexer, asynchronous clear three-state 20 SN74LS696
74x697 1 4-bit binary counter/register/multiplexer, asynchronous clear three-state 20 SN74LS697
74x698 1 4-bit decimal counter/register/multiplexer, synchronous clear three-state 20 SN74LS698
74x699 1 4-bit binary counter/register/multiplexer, synchronous clear three-state 20 SN74LS699

74x700 – 74x799

Part number
Units Description Input Output Pins Datasheet
74x700 1 octal dRAM driver, inverting three-state 20 SN74S700
74x701 1 8-bit register/counter/comparator three-state 24 74F701
74x702 1 8-bit registered read-back transceiver three-state 24 74F702
74x705 1 arithmetic logic unit for digital signal processing applications three-state (84) 74ACT705
74x707 1 8-bit TTL-ECL shift register 20 74F707
74x708 1 576-bit FIFO memory (64x9) three-state 28 74ACT708
74x710 1 8-bit single-supply TTL-ECL shift register 20 74F710
74x711 5 quint 2-to-1 multiplexers three-state 20 74F711
74x712 5 quint 3-to-1 multiplexers 24 74F712
74x716 1 programmable decade counter 16 SN74LS716
74x718 1 programmable binary counter 16 SN74LS718
74x723 1 576-bit FIFO memory (64x9) three-state 28 74ACT723
74x724 1 voltage-controlled multivibrator analog 8 SN74LS724
74x725 1 4608-bit FIFO memory (512x9) three-state 28 74ACT725
74x730 1 octal dRAM driver, inverting three-state 20 SN74S730
74x731 1 octal dRAM driver, non-inverting three-state 20 SN74S731
74x732 1 4-bit 3-bus multiplexer, inverting three-state 20 74F732
74x733 1 4-bit 3-bus multiplexer, non-inverting three-state 20 74F733
74x734 1 octal dRAM driver, non-inverting three-state 20 SN74S734
74x748 1 8 to 3-line priority encoder (glitch-less) 16 SN74LS748
74x756 1 octal buffer/line driver, inverting outputs open-collector 20 SN74AS756
74x757 1 octal buffer/line driver, non-inverting outputs, complementary enable inputs open-collector 20 SN74AS757
74x758 1 quadruple bus transceivers, inverting outputs open-collector 14 SN74AS758
74x759 1 quadruple bus transceivers, non-inverting outputs open-collector 14 SN74AS759
74x760 1 octal buffer/line driver, non-inverting outputs open-collector 20 SN74ALS760
74x762 1 octal buffer/line driver, inverting and non-inverting outputs open-collector 20 SN74ALS762
74x763 1 octal buffer/line driver, inverting outputs, complementary enable inputs open-collector 20 SN74ALS763
74x764 1 dual-port dRAM controller 40 74F764
74x765 1 dual-port dRAM controller with address latch 40 74F765
74x779 1 8-bit bidirectional binary counter three-state 16 MC74F779
74x783 1 synchronous address multiplexer for display systems 40 SN74LS783
74x784 1 8-bit serial/parallel multiplier with adder/subtractor 20 74F784
74x786 1 4-input asynchronous bus arbiter 16 74F786
74x790 1 error detection and correction (EDAC) three-state 48 SN74ALS790
74x793 1 8-bit latch, readback 20 SN74LS793
74x794 1 8-bit register, readback 20 SN74LS794
74x795 1 octal buffer, non-inverting, common enable three-state 20 SN74LS795
74x796 1 octal buffer, inverting, common enable three-state 20 SN74LS796
74x797 1 octal buffer, non-inverting, enable for 4 buffers each three-state 20 SN74LS797
74x798 1 octal buffer, inverting, enable for 4 buffers each three-state 20 SN74LS798

74x800 – 74x899

Part number
Units Description Input Output Pins Datasheet
74x800 3 triple 4-input AND/NAND drivers driver 20 SN74AS800
74x802 3 triple 4-input OR/NOR drivers driver 20 SN74AS802
74x803 4 quad D flip flops with matched propagation delays 14 MC74F803
74x804 6 hex 2-input NAND drivers driver 20 SN74ALS804A
74x805 6 hex 2-input NOR drivers driver 20 SN74ALS805A
74x807 1 1-to-10 clock driver driver 20 IDT74FCT807
74x808 6 hex 2-input AND drivers driver 20 SN74AS808B
74x810 4 quad 2-input XNOR gates 14 SN74ALS810
74x811 4 quad 2-input XNOR gates open-collector 14 DM74ALS811
74x818 1 8-bit diagnostic register three-state 24 74ACT818
74x821 1 10-bit bus interface flip-flop three-state 24 SN74AS821A
74x822 1 10-bit bus interface flip-flop, inverting inputs three-state 24 SN74AS822
74x823 1 9-bit D-type flip-flops, clear and clock enable inputs three-state 24 SN74AS823A
74x824 1 9-bit D-type flip-flops, clear and clock enable inputs, inverting inputs three-state 24 SN74AS824
74x825 1 8-bit D-type flip-flop, clear and clock enable inputs three-state 24 SN74AS825A
74x826 1 8-bit D-type flip-flop, clear and clock enable inputs, inverting inputs three-state 24 SN74AS826
74x827 1 10-bit buffer, non-inverting three-state 24 MC74F827
74x828 1 10-bit buffer, inverting three-state 24 MC74F828
74x832 6 hex 2-input OR drivers driver 20 SN74ALS832A
74x833 1 8-bit to 9-bit bus transceiver with parity register, non-inverting three-state 24 SN74ABT833
74x834 1 8-bit to 9-bit bus transceiver with parity register, inverting three-state 24 IDT74FCT834
74x841 1 10-bit D-type flip-flop three-state 24 SN74ALS841
74x842 1 10-bit D-type flip-flop, inverting inputs three-state 24 SN74ALS842
74x843 1 9-bit D flip-flops, clear and set inputs three-state 24 SN74ALS843
74x844 1 9-bit D flip-flops, clear and set inputs, inverting inputs three-state 24 SN74ALS844
74x845 1 8-bit D flip-flops, clear and set inputs three-state 24 SN74ALS845
74x846 1 8-bit D flip-flops, clear and set inputs, inverting inputs three-state 24 SN74ALS846
74x848 1 8 to 3-line priority encoder (glitch-less) three-state 16 SN74LS848
74x850 1 1 of 16 data selector/multiplexer, clocked select three-state 28 SN74AS850
74x851 1 1 of 16 data selector/multiplexer three-state 28 SN74AS851
74x852 1 8-bit universal transceiver port controller three-state 24 SN74AS852
74x853 1 8-bit to 9-bit bus transceiver with parity latch, non-inverting three-state 24 SN74ABT853
74x854 1 8-bit to 9-bit bus transceiver with parity latch, inverting three-state 24 IDT74FCT854
74x856 1 8-bit universal transceiver port controller three-state 24 SN74AS856
74x857 6 hex 2-line to 1-line multiplexer three-state 24 SN74ALS857
74x861 1 10-bit bus transceiver, non-inverting three-state 24 SN74ABT861
74x862 1 10-bit bus transceiver, inverting three-state 24 SN74ABT862
74x863 1 9-bit bus transceiver, non-inverting three-state 24 SN74ABT863
74x864 1 9-bit bus transceiver, inverting three-state 24 74F864
74x866 1 8-bit magnitude comparator with latches 24 SN74AS866
74x867 1 synchronous 8-bit up/down counter, asynchronous clear 24 SN74ALS867A
74x869 1 synchronous 8-bit up/down counter, synchronous clear 24 SN74ALS869
74x870 1 dual 16x4 register files 24 SN74AS870
74x871 1 dual 16x4 register files 28 SN74AS871
74x873 2 dual 4-bit transparent latch with clear three-state 24 SN74ALS873B
74x874 2 dual 4-bit edge-triggered D flip-flops with clear three-state 24 SN74ALS874
74x876 2 dual 4-bit edge-triggered D flip-flops with set, inverting outputs three-state 24 SN74ALS876
74x877 1 8-bit universal transceiver port controller three-state 24 SN74AS877
74x878 2 dual 4-bit D-type flip-flop, synchronous clear, non-inverting outputs three-state 24 SN74ALS878
74x879 2 dual 4-bit D-type flip-flop, synchronous clear, inverting outputs three-state 24 SN74ALS879
74x880 2 dual 4-bit transparent latch with clear, inverting outputs three-state 24 SN74ALS880
74x881 1 4-bit arithmetic logic unit 24 SN74AS881A
74x882 1 32-bit lookahead carry generator 24 SN74AS882
74x885 1 8-bit magnitude comparator 24 SN74AS885
74x887 1 8-bit processor element (non-cascadable version of 74x888) (68) SN74AS887
74x888 1 8-bit processor slice 64 SN74AS888
74x889 1 8-bit processor slice (68) SN74AS889
74x890 1 microoperation sequencer 64 SN74AS890
74x891 1 microoperation sequencer (68) SN74AS891
74x895 1 8-bit memory address generator (68) SN74AS895
74x897 1 16-bit parallel/serial barrel shifter (68) SN74AS897A
74x899 1 9-bit latchable transceiver with parity generator / checker three-state (28) 74AC899

74x900 – 74x999

Part number
Units Description Input Output Pins Datasheet
74x901 6 hex inverting TTL buffer 14 MM74C901
74x902 6 hex non-inverting TTL buffer 14 MM74C902
74x903 6 hex inverting PMOS buffer 14 MM74C903
74x904 6 hex non-inverting PMOS buffer 14 MM74C904
74x905 1 12-bit successive approximation register 24 MM74C905
74x906 6 hex open drain n-channel buffers open-collector 14 MM74C906
74x907 6 hex open drain p-channel buffers 14 MM74C907
74x908 2 dual 2-input NAND 30 V / 250 mA relay driver 8 MM74C908
74x909 4 quad voltage comparator analog open-collector 14 MM74C909
74x910 1 256-bit RAM (64x4) three-state 18 MM74C910
74x911 1 4-digit expandable display controller three-state 28 MM74C911
74x912 1 6-digit BCD display controller and driver three-state 28 MM74C912
74x913 1 6-digit BCD display controller and driver, no decimal point 24 MM74C913
74x914 6 hex Schmitt trigger, extended input voltage Schmitt-trigger 14 MM74C914
74x915 1 7-segment to BCD converter three-state 18 MM74C915
74x917 1 6-digit hex display controller and driver three-state 28 MM74C917
74x918 2 dual 2-input NAND 30 V / 250 mA relay driver 14 MM74C918
74x920 1 1024-bit RAM (256x4), separate data inputs and outputs three-state 22 MM74C920
74x921 1 1024-bit RAM (256x4) three-state 18 MM74C921
74x922 1 16-key encoder three-state 18 MM74C922
74x923 1 20-key encoder three-state 20 MM74C923
74x925 1 4-digit counter/display driver 16 MM74C925
74x926 1 4-digit decade counter/display driver, carry out and latch (up to 9999) 16 MM74C926
74x927 1 4-digit timer counter/display driver (up to 9599, intended as time elapsed, i.e. 9:59.9 min) 16 MM74C927
74x928 1 4-digit counter/display driver (up to 1999) 16 MM74C928
74x929 1 1024-bit RAM (1024x1), single chip select three-state 16 MM74C929
74x930 1 1024-bit RAM (1024x1), three chip selects three-state 18 MM74C930
74x932 1 phase comparator 8 MM74C932
74x933 1 7-bit address bus comparator 20 MM74C933
74934 1 =ADC0829 ADC, see corresponding NSC datasheet
74x935 1 ADC for 3.5-digit digital voltmeters, multiplexed 7-segment display outputs analog 28 MM74C935
74x936 1 ADC for 3.75-digit digital voltmeters, multiplexed 7-segment display outputs analog MM74C936
74x937 1 ADC for 3.5-digit digital voltmeters, multiplexed BCD outputs analog 24 MM74C937
74x938 1 ADC for 3.75-digit digital voltmeters, multiplexed BCD outputs analog 24 MM74C938
74x940 1 octal bus/line drivers/line receivers Schmitt-trigger three-state 20 DM74S940
74x941 1 octal bus/line drivers/line receivers Schmitt-trigger three-state 20 DM74S941
74x942 1 300 baud Bell 103 modem (+/- 5 V supply) 20 MM74HC942
74x943 1 300 baud Bell 103 modem (single 5 V supply) 20 MM74HC943
74x945 1 4-digit up/down counter, decoder and LCD driver, output latch 40 MM74C945
74x946 1 4.5-digit counter, decoder and LCD driver, leading zero blanking 40 MM74C946
74x947 1 4-digit up/down counter, decoder and LCD driver, leading zero blanking 40 MM74C947
74x948 1 8-bit ADC with 16-channel analog multiplexer analog three-state 40 MM74C948
74x949 1 8-bit ADC with 8-channel analog multiplexer analog three-state 28 MM74C949
74x950 1 8-bit ADC with 8-channel analog multiplexer and sample and hold analog three-state 28 MM74C950
74x952 1 dual rank 8-bit shift register, synchronous clear three-state 18 DM74LS952
74x956 1 4-digit,17-segment alpha-numeric LED display driver with memory and decoder 40 MM74C956
74x962 1 dual rank 8-bit shift register, register exchange mode three-state 18 DM74LS962
74x963 1 dual rank 8-bit shift register, synchronous clear three-state 20 SN74ALS963
74x964 1 dual rank 8-bit shift register, synchronous and asynchronous clear three-state 20 SN74ALS964
74x968 1 controller/driver for 16k/64k/256k/1M dRAM 52 74F968
74x978 1 octal flip-flop with serial scanner 24 74F978
74x989 1 64-bit RAM (64x4) three-state 16 MM74C989
74x990 1 8-bit D-type transparent read-back latch, non-inverting three-state 20 SN74ALS990
74x991 1 8-bit D-type transparent read-back latch, inverting three-state 20 SN74ALS991
74x992 1 9-bit D-type transparent read-back latch, non-inverting three-state 24 SN74ALS992
74x993 1 9-bit D-type transparent read-back latch, inverting three-state 24 SN74ALS993
74x994 1 10-bit D-type transparent read-back latch, non-inverting three-state 24 SN74ALS994
74x995 1 10-bit D-type transparent read-back latch, inverting three-state 24 SN74ALS995
74x996 1 8-bit D-type edge-triggered read-back latch three-state 24 SN74ALS996

74x1000 – 74x3999

Part number
Units Description Input Output Pins Datasheet
74x1000 4 quad 2-input NAND gate driver 14 SN74AS1000A
74x1002 4 quad 2-input NOR gate driver 14 SN74ALS1002A
74x1003 4 quad 2-input NAND gate open-collector driver 14 SN74ALS1003A
74x1004 6 hex inverting buffer driver 14 SN74ALS1004
74x1005 6 hex inverting buffer open-collector driver 14 SN74ALS1005
74x1008 4 quad 2-input AND gate driver 14 SN74AS1008A
74x1010 3 triple 3-input NAND gate driver 14 SN74ALS1010A
74x1011 3 triple 3-input AND gate driver 14 SN74ALS1011A
74x1016 16 16-bit Schottky diode R-C bus termination array (20) SN74F1016
74x1017 1 16x16 parallel multiplier three-state 64 74AC1017
74x1020 2 dual 4-input NAND gate driver 14 SN74ALS1020A
74x1032 4 quad 2-input OR gate driver 14 SN74AS1032A
74x1034 6 hex non-inverting buffer driver 14 SN74ALS1034
74x1035 6 hex non-inverting buffer open-collector driver 14 SN74ALS1035
74x1036 4 quad 2-input NOR gate driver 14 SN74ALS1036
74x1050 12 12-bit Schottky diode bus termination array, clamp to GND 16 SN74S1050
74x1051 12 12-bit Schottky diode bus termination array, clamp to GND/VCC 16 SN74S1051
74x1053 16 16-bit Schottky diode bus termination array, clamp to GND/VCC 20 SN74S1053
74x1056 8 8-bit Schottky diode bus termination array, clamp to GND (16) SN74F1056
74x1071 10 10-bit bus termination array with bus-hold function (14) SN74ACT1071
74x1073 16 16-bit bus termination array with bus-hold function (20) SN74ACT1073
74x1181 1 4-bit arithmetic logic unit 24 SN74AS1181
74x1240 1 octal buffer / line driver, inverting (lower-power version of 74x240) three-state 20 SN74ALS1240
74x1241 1 octal buffer / line driver, non-inverting (lower-power version of 74x241) three-state 20 SN74ALS1241
74x1242 1 quad bus transceiver, inverting (lower-power version of 74x242) three-state 14 SN74ALS1242
74x1243 1 quad bus transceiver, non-inverting (lower-power version of 74x243) three-state 14 SN74ALS1243
74x1244 1 octal buffer / driver, non-inverting (lower-power version of 74x244) three-state 20 SN74ALS1244
74x1245 1 octal bus transceiver (lower-power version of 74x245) three-state 20 SN74ALS1245A
74x1284 1 parallel printer interface transceiver / buffer (IEEE 1284) 20 74HCT1284
74x1620 1 octal bus transceiver, inverting three-state 20 SN74ALS1620
74x1621 1 octal bus transceiver, non-inverting open-collector 20 SN74ALS1621
74x1622 1 octal bus transceiver, inverting open-collector 20 SN74ALS1622
74x1623 1 octal bus transceiver, non-inverting three-state 20 SN74ALS1623
74x1638 1 octal bus transceiver, inverting (lower-power version of 74x638) three-state and open-collector 20 SN74ALS1638
74x1639 1 octal bus transceiver, non-inverting (lower-power version of 74x639) three-state and open-collector 20 SN74ALS1639
74x1640 1 octal bus transceiver, inverting (lower-power version of 74x640) three-state 20 SN74ALS1640A
74x1641 1 octal bus transceiver, non-inverting (lower-power version of 74x641) open-collector 20 SN74ALS641
74x1642 1 octal bus transceiver, inverting (lower-power version of 74x642) open-collector 20 SN74ALS642
74x1643 1 octal bus transceiver, inverting and non-inverting (lower-power version of 74x643) three-state 20 SN74ALS643
74x1644 1 octal bus transceiver, inverting and non-inverting (lower-power version of 74x644) open-collector 20 SN74ALS644
74x1645 1 octal bus transceiver, non-inverting (lower-power version of 74x645) three-state 20 SN74ALS1645A
74x1761 1 dRAM and interrupt vector controller 48 74F1761
74x1762 1 dRAM address controller 40 74F1762
74x1763 1 single-port dRAM controller 48 74F1763
74x1764 1 dual-port dRAM controller 48 74F1764
74x1765 1 dual-port dRAM controller with address latch 48 74F1765
74x1801 1 FM, MFM, and DM encoder / decoder, data rates up to 10 MHz 24 74LS1801
74x1802 1 SerDes with ECC and CRC, data rates up to 10 MHz three-state 48 74LS1802
74x1803 1 quad clock driver 14 MC74F1803
74x1804 6 hex 2-input NAND driver 20 DM74AS1804
74x1805 6 hex 2-input NOR driver 20 DM74AS1805
74x1808 6 hex 2-input AND driver 20 DM74AS1808
74x1811 1 FM, MFM, and DM encoder / decoder, data rates up to 20 MHz 24 74LS1811
74x1812 1 SerDes with ECC and CRC, data rates up to 30 MHz three-state 48 74LS1812
74x1832 6 hex 2-input OR driver 20 DM74ALS1832
74x2151 1 8-line to 1-line multiplexer 25 Ω series resistor (16) CD74FCT2151
74x2153 2 dual 4-line to 1-line multiplexer 25 Ω series resistor (16) CD74FCT2153
74x2157 4 quad 2-line to 1-line multiplexer 25 Ω series resistor (16) CD74FCT2157
74x2226 2 dual 64-bit FIFO memories (64x1) (24) SN74ACT2226
74x2227 2 dual 64-bit FIFO memories (64x1) three-state (28) SN74ACT2227
74x2228 2 dual 256-bit FIFO memories (256x1) (24) SN74ACT2228
74x2229 2 dual 256-bit FIFO memories (256x1) three-state (28) SN74ACT2229
74x2232 1 512-bit FIFO memory (64x8) three-state 24 SN74ALS2232A
74x2233 1 576-bit FIFO memory (64x9) three-state 28 SN74ALS2233A
74x2235 2 dual 9216-bit FIFO memory (1024x9) three-state (44) SN74ACT2235
74x2236 2 dual 9216-bit FIFO memory (1024x9) three-state (44) SN74ACT2236
74x2238 2 dual 288-bit FIFO memories (32x9) three-state 40 SN74ALS2238
74x2240 1 4-bit bidirectional buffer / line driver, inverting three-state, 25 Ω series resistor (20) CD74FCT2240
74x2241 1 4-bit bidirectional buffer / line driver, non-inverting three-state, 25 Ω series resistor (20) CD74FCT2241
74x2244 1 octal buffer / line driver, non-inverting three-state, 26 Ω series resistor (20) SN74LVC2244A
74x2245 1 octal bus transceiver three-state, 22 Ω series resistor (20) SN74LVTH2245
74x2253 2 dual 4-line to 1-line multiplexer three-state, 25 Ω series resistor (16) CD74FCT2253
74x2257 4 quad 2-line to 1-line multiplexer three-state, 25 Ω series resistor (16) CD74FCT2257
74x2273 8 octal D-type flip-flop with common clock and reset 25 Ω series resistor (20) CD74FCT2273
74x2373 1 8-bit transparent latch three-state, 25 Ω series resistor (20) CD74FCT2373
74x2374 8 octal D-type flip-flop with common clock three-state, 25 Ω series resistor (20) CD74FCT2374
74x2525 1 8-output clock driver 14 74AC2525
74x2525 1 8-output clock driver with input multiplexer 16 74AC2526
74x2541 1 8-bit buffer / line driver, non-inverting three-state, 25 Ω series resistor (20) CD74FCT2541
74x2543 1 8-bit latched transceiver, non-inverting three-state, 25 Ω series resistor (24) CD74FCT2543
74x2573 1 8-bit transparent latch three-state, 25 Ω series resistor (20) CD74FCT2573
74x2574 8 octal D-type flip-flop with common clock three-state, 25 Ω series resistor (20) CD74FCT2574
74x2620 1 octal bus transceiver / MOS driver, inverting three-state, 25 Ω series resistor 20 SN74AS2620
74x2623 1 octal bus transceiver / MOS driver, non-inverting three-state, 25 Ω series resistor 20 SN74AS2623
74x2640 1 octal bus transceiver / MOS driver, inverting three-state, 25 Ω series resistor 20 SN74AS2640
74x2645 1 octal bus transceiver / MOS driver, non-inverting three-state, 25 Ω series resistor 20 SN74AS2645
74x2646 1 octal registered transceiver, non-inverting three-state, 25 Ω series resistor (24) CD74FCT2646
74x2652 1 octal registered transceiver, non-inverting three-state, 25 Ω series resistor (24) CD74FCT2652
74x2708 1 576-bit FIFO memory (64x9) three-state 28 74AC2708
74x2725 1 4608-bit FIFO memory (512x9) 28 74ACT2725
74x2726 1 4608-bit bidirectional FIFO memory (512x9) 28 74ACT2726
74x2821 1 10-bit D-type flip-flop three-state, 25 Ω series resistor (24) CD74FCT2821
74x2823 1 9-bit D-type flip-flop with clear three-state, 25 Ω series resistor (24) CD74FCT2823
74x2827 1 10-bit buffer, non-inverting three-state, 25 Ω series resistor (24) CD74FCT2827
74x2828 1 10-bit buffer, inverting three-state, 25 Ω series resistor (24) CD74FCT2828
74x2841 1 10-bit transparent latch three-state, 25 Ω series resistor (24) CD74FCT28141
74x2952 1 octal bus transceiver and register, non-inverting three-state 24 SN74LVC2952A
74x2953 1 octal bus transceiver and register, inverting three-state 24 74F2953
74x2960 1 error detection and correction (EDAC), equivalent to Am2960 three-state 48 MC74F2960
74x2961 1 4-bit EDAC bus buffer, inverting, equivalent to Am2961 three-state 24 MC74F2961A
74x2962 1 4-bit EDAC bus buffer, non-inverting, equivalent to Am2962 three-state 24 MC74F2962A
74x2967 1 controller/driver for 16k/64k/256k dRAM 48 SN74ALS2967
74x2968 1 controller/driver for 16k/64k/256k dRAM 48 SN74ALS2968
74x2969 1 memory timing controller for use with EDAC 48 MC74F2969
74x2970 1 memory timing controller for use without EDAC 24 MC74F2970
74x3037 4 quad 2-input NAND driver 30 Ω 16 74F3037
74x3038 4 quad 2-input NAND open-collector driver 30 Ω 16 74F3038
74x3040 2 dual 4-input NAND driver 30 Ω 16 74F3040
74x3244 2 dual 4-bit buffer / line driver three-state 20 IDT74FCT3244
74x3245 1 octal bidirectional transceiver three-state 20 IDT74FCT3245
74x3573 1 octal transparent latch three-state 20 IDT74FCT3573
74x3574 1 octal D-type flip flop three-state 20 IDT74FCT3574
74x3807 1 1-to-10 clock driver driver 20 IDT74FCT3807
74x3827 1 10-bit buffer three-state 24 IDT74FCT3827
74x3893 1 quad Futurebus backplane transceiver open-collector and three-state (20) MC74F3893A
74x3907 1 Pentium clock synthesizer three-state (28) IDT74FCT3907
74x3932 1 PLL-based clock driver three-state (48) IDT74FCT3932

74x4000 and above

Part number
Units Description Input Output Pins Datasheet
74x4002 2 dual 4-input NOR gate 14 CD74HC4002
74x4015 2 dual 4-bit shift registers 16 CD74HC4015
74x4016 4 quad bilateral switch analog 14 CD74HC4016
74x4017 1 5-stage ÷10 Johnson counter 16 CD74HC4017
74x4020 1 14-stage binary counter 16 SN74HC4020
74x4022 1 4-stage ÷8 Johnson counter 14 SN74HC4022
74x4024 1 7-stage ripple carry binary counter 14 CD74HC4024
74x4028 1 BCD to decimal decoder 16 TC74HC4028P
74x4040 1 12-stage binary ripple counter 16 SN74HC4040
74x4046 1 phase-locked loop and voltage-controlled oscillator 16 CD74HC4046A
74x4049 6 hex inverting buffer 16 CD74HC4049
74x4050 6 hex buffer/converter (non-inverting) 16 CD74HC4050
74x4051 1 high-speed 8-channel analog multiplexer/demultiplexer analog 16 CD74HC4051
74x4052 2 dual 4-channel analog multiplexer/demultiplexers analog 16 CD74HC4052
74x4053 3 triple 2-channel analog multiplexer/demultiplexers analog 16 CD74HC4053
74x4059 1 programmable divide-by-N counter 24 CD74HC4059
74x4060 1 14-stage binary ripple counter with oscillator 16 SN74HC4060
74x4061 1 14-stage asynchronous binary counter with oscillator 16 SN74HC4061
74x4066 4 quad single-pole single-throw analog switch 14 SN74HC4066
74x4067 1 16-channel analog multiplexer/demultiplexer analog 24 CD74HC4067
74x4072 2 dual 4-input OR gate 14 TC74HC4072
74x4075 3 triple 3-input OR gate 14 CD74HC4075
74x4078 1 8-input OR/NOR gate 14 MM74HC4078
74x4094 1 8-bit three-state shift register/latch three-state 16 CD74HC4094
74x4245 1 8-bit 3V/5V translating transceiver three-state (24) 74LVX4245
74x4316 4 quad analog switch analog 14 MM74HC4316
74x4351 1 8-channel analog multiplexer/demultiplexer with latch analog 20 CD74HC4351
74x4352 2 dual 4-channel analog multiplexer/demultiplexer with latch analog 20 CD74HC4352
74x4353 3 triple 2-channel analog multiplexer/demultiplexer with latch analog 20 MC74HC4353
74x4510 1 BCD decade up/down counter 16 CD74HC4510
74x4511 1 BCD to 7-segment decoder 16 CD74HC4511
74x4514 1 4-to-16 line decoder/demultiplexer, input latches 24 CD74HC4514
74x4515 1 4-to-16 line decoder/demultiplexer with input latches; inverting 24 CD74HC4515
74x4516 1 4-bit binary up/down counter 16 CD74HC4516
74x4518 2 dual 4-bit synchronous decade counter 16 CD74HC4518
74x4520 2 dual 4-bit synchronous binary counter 16 CD74HC4520
74x4538 2 dual retriggerable precision monostable multivibrator 16 CD74HC4538
74x4543 1 BCD to 7-segment latch/decoder/driver for LCDs 16 CD74HC4543
74x4560 1 4-bit BCD adder 16 MM74HC4560
74x4724 1 8-bit addressable latch 16 SN47HC4724
74x4851 1 8-channel analog multiplexer/demultiplexer analog 16 SN74HC4851
74x5245 1 octal bidirectional transceiver Schmitt-trigger three-state 20 DM74ALS5245
74x5555 1 programmable delay timer with oscillator 16 74HC5555
74x5620 1 octal bidirectional transceiver Schmitt-trigger three-state 20 DM74ALS5620
74x6301 1 dynamic memory refresh controller, transparent and burst modes, for 16K, 64K, 256K, and 1M dRAM 52 SN74ALS6301
74x6302 1 dynamic memory refresh controller, transparent and burst modes, for 16K, 64K, 256K, and 1M dRAM 52 SN74ALS6302
74x6323 1 programmable ripple counter with oscillator three-state (8) 74HC6323A
74x7001 4 quad 2-input AND gate Schmitt-trigger 14 SN74HC7001
74x7002 4 quad 2-input NOR gate Schmitt-trigger 14 SN74HC7002
74x7007 6 hex buffer 14 TC74HCT7007AP
74x7014 6 hex non-inverting buffer Schmitt-trigger 14 74HC7014
74x7022 1 4-stage ÷8 Johnson counter with power-up clear 14 SN74HC7022
74x7030 1 576-bit FIFO memory (64x9) three-state 28 74HC7030
74x7038 1 9-bit bus transceiver with latch three-state 24 CD74HC7038
74x7046 1 phase-locked loop with voltage-controlled oscillator and lock detector 16 CD74HC7046A
74x7074 6 two inverters, one 3-input NAND, one 3-input NOR, two D-type flip-flops 24 SN74HC7074
74x7240 1 octal bus buffer, inverting Schmitt-trigger three-state 20 TC74HC7240AP
74x7241 1 octal bus buffer, non-inverting Schmitt-trigger three-state 20 TC74HC7241AP
74x7244 1 octal bus buffer, non-inverting Schmitt-trigger three-state 20 TC74HC7244AP
74x7245 1 octal bus transceiver, non-inverting Schmitt-trigger three-state 20 M74HC7245
74x7266 4 quad 2-input XNOR gate 14 SN74HC7266
74x7292 1 programmable divider 16 TC74HC7292AP
74x7403 1 256-bit FIFO memory (64x4) three-state 16 74HC7403
74x7404 1 320-bit FIFO memory (64x5) three-state 18 74HC7404
74x7540 8 octal buffer/line driver, inverting Schmitt trigger three-state 20 74HC7540
74x7541 8 octal buffer/line driver, non-inverting Schmitt trigger three-state 20 74HC7541
74x7597 1 8-bit shift register with input latches 16 74HC7597
74x7640 1 octal bus transceiver, inverting Schmitt-trigger three-state 20 M74HC7640
74x7643 1 octal bus transceiver, non-inverting/inverting Schmitt-trigger three-state 20 M74HC7643
74x7645 1 octal bus transceiver, non-inverting Schmitt-trigger three-state 20 M74HC7645
74x7731 4 quad 64-bit static shift register 16 74HC7731
74x8003 2 dual 2-input NAND gate 8 SN74ALS8003
74x9014 9 nine-wide buffer/line driver, inverting Schmitt trigger 20 74HC9014
74x9015 9 nine-wide buffer/line driver, non-inverting Schmitt trigger 20 74HC9015
74x9046 1 PLL with band gap controlled VCO 16 74HCT9046
74x9114 9 nine-wide inverter Schmitt-trigger open-collector 20 74HC9114
74x9115 9 nine-wide buffer Schmitt-trigger open-collector 20 74HC9115
74x9323 1 programmable ripple counter with oscillator three-state (8) 74HC9323A
74x40102 1 presettable synchronous 2-decade BCD down counter 16 CD74HC40102
74x40103 1 presettable 8-bit synchronous down counter 16 CD74HC40103
74x40104 4 4-bit bidirectional universal shift register three-state 16 CD74HC40104
74x40105 1 64-bit FIFO memory (16x4) three-state 16 CD74HC40105
Part number Units Description Input Output Pins Datasheet

Smaller footprints[edit]

As board designs have migrated away from large amounts of logic chips, so has the need for many of the same gate in one package. Since about 1996,[1] there has been an ongoing trend towards one / two / three logic gates per chip. Now logic can be placed where it is physically needed on a board, instead of running long signal traces to a full-size logic chip that has many of the same gate.[2]

All chips in the following sections are available 4 to 12 pin surface mount packages. The right digits, after the 1G/2G/3G, typically has the same functional features as older legacy chips, except for the multifunctional chips and 4-digit chip numbers which are unique to these newer families. The "x" in the part number is a place holder for the logic family name. For example, 74x1G14 in "LVC" logic family would be "74LVC1G14". The previously stated prefixes of "SN-" and "MC-" are used to denote manufacturers, Texas Instruments and ON Semiconductor respectively.[3][4][5]

Some of the manufacturers that make these smaller IC chips are: Diodes Incorporated, Nexperia (NXP Semiconductors), ON Semiconductor (Fairchild Semiconductor), Texas Instruments (National Semiconductor), Toshiba.

One gate chips[edit]

All chips in this section have one gate, noted by the "1G" in the part numbers. The most popular logic families are LVC and AUP, however there have been other releases such as AUC and AXP families with shorter propagation delays or expansions of the existing families such as the AHC(T) and HC(T).

Part number Description Input Output Datasheet
74x1G00 single 2-input NAND gate LVC
74x1G02 single 2-input NOR gate LVC
74x1G04 single inverter gate LVC
74x1G06 single inverter gate schmitt-trigger open-drain LVC
74x1G07 single buffer gate schmitt-trigger open-drain LVC
74x1G08 single 2-input AND gate LVC
74x1G09 single 2-input AND gate open-drain AUP
74x1G14 single inverter gate schmitt-trigger LVC
74x1G17 single buffer gate schmitt-trigger LVC
74x1G27 single 3-input NOR gate LVC
74x1G32 single 2-input OR gate LVC
74x1G34 single buffer gate LVC
74x1G57 single configurable 7-function gate schmitt-trigger LVC
74x1G58 single configurable 7-function gate schmitt-trigger LVC
74x1G79 single D-type flip-flop, positive-edge trigger LVC
74x1G80 single D-type flip-flop, positive-edge trigger, inverted output LVC
74x1G86 single 2-input XOR gate LVC
74x1G97 single configurable 7-function gate schmitt-trigger LVC
74x1G98 single configurable 7-function gate schmitt-trigger LVC
74x1G99 single configurable 15-function gate, active-low enable schmitt-trigger three-state LVC
74x1G123 single retriggerable monostable multivibrator, clear LVC
74x1G125 single buffer gate, active-low enable three-state LVC
74x1G126 single buffer gate, active-high enable three-state LVC
74x1G373 single transparent latch, active-low enable three-state LVC
74x1G374 single D-type flip-flop, active-low enable three-state LVC
74x1G386 single 3-input XOR Gate (a.k.a. even-parity generator) LVC
74x1G0832 single 3-input AND-OR combo gate (2-input AND into OR) schmitt-trigger LVC
74x1G3208 single 3-input OR-AND combo gate (2-input OR into AND) schmitt-trigger LVC

Two gate chips[edit]

All chips in this section have two gates, noted by the "2G" in the part numbers. The "2G" chips mainly consist of AUG and LVC logic families, more recently AHC, AHCT, HC, HCT families have been expanding, plus some support for AXP family.

Part number Description Input Output Datasheet
74x2G00 dual 2-input NAND gate LVC
74x2G02 dual 2-input NOR gate LVC
74x2G04 dual inverter gate LVC
74x2G06 dual inverter gate schmitt-trigger open-drain LVC
74x2G07 dual buffer gate schmitt-trigger open-drain LVC
74x2G08 dual 2-input AND gate LVC
74x2G14 dual inverter gate schmitt-trigger LVC
74x2G17 dual buffer gate schmitt-trigger LVC
74x2G32 dual 2-input OR gate LVC
74x2G34 dual buffer gate LVC
74x2G79 dual D-type flip-flop, positive-edge trigger LVC
74x2G80 dual D-type flip-flop, positive-edge trigger, invert output LVC
74x2G125 dual buffer, active-low enable three-state LVC
74x2G126 dual buffer, active-high enable three-state LVC
74x2G240 dual inverter, active-low enable, three-state LVC
74x2G241 dual buffer, active-low and active-high enables three-state LVC
74x2G0604 dual combo gates - one inverter, one inverter with O.D. open-drain AUP
74x2G3404 dual combo gates - one buffer, one inverter AUP
74x2G3407 dual combo gates - one buffer, one buffer with O.D. open-drain AUP

Three gate chips[edit]

All chips in this section have three gates, noted by the "3G" in the part numbers. The "3G" chips mainly consist of AUG and LVC logic families, more recently AHC, AHCT, HC, HCT families have been expanding.

Part number Description Input Output Datasheet
74x3G04 triple inverter gate LVC
74x3G06 triple inverter gate schmitt-trigger open-drain LVC
74x3G07 triple buffer gate schmitt-trigger open-drain LVC
74x3G14 triple inverter gate schmitt-trigger LVC
74x3G17 triple buffer gate schmitt-trigger LVC
74x3G34 triple buffer gate LVC
74x3G0434 triple combo gates - two inverter, one buffer AUP
74x3G3404 triple combo gates - two buffer, one inverter AUP

See also[edit]

References[edit]

  1. ^ "The Fairchild Division of National Semiconductor Introduces Industry's Fastest 5V Single-Gate Logic". Fairchild Semiconductor. November 25, 1996. Retrieved July 27, 2018.
  2. ^ "Unique and Novel Uses for ON Semiconductor's New One-Gate family" (PDF). ON Semiconductor. June 2000. Archived (PDF) from the original on July 9, 2001.
  3. ^ 2018 Little Logic Guide; Texas Instruments.
  4. ^ 74AUP Logic Guide; NXP.
  5. ^ 74LVC Logic Guide; NXP.

Further reading[edit]