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List of common microcontrollers

From Wikipedia, the free encyclopedia

This is a list of common microcontrollers listed by brand.


In 2015, Altera was acquired by Intel, and then spun back out on it's own in 2024.

Analog Devices[edit]


While Arm is a fabless semiconductor company (it does not manufacture or sell its own chips), it licenses the ARM architecture family design to a variety of companies. Those companies in turn sell billions of ARM-based chips per year—12 billion ARM-based chips shipped in 2014,[1] about 24 billion ARM-based chips shipped in 2020,[2] some of those are popular chips in their own right.


Atmel ATmega169 (64-pin MLF)

In 2016, Atmel was sold to Microchip Technology.

Cypress Semiconductor[edit]

Cypress PSoC chips

In 2020, Cypress Semiconductor was acquired by Infineon Technologies.

ELAN Microelectronics Corp.[edit]

ELAN Microelectronics Corporation is an IC designer and provider of 8-bit microcontrollers and PC Peripheral ICs. Headquartered in Hsinchu Science Park, the Silicon Valley of Taiwan, ELAN's microcontroller product range includes the following:

  • EM78PXXX Low Pin-Count MCU Family
  • EM78PXXX GPIO Type MCU Family
  • EM78PXXXN ADC Type MCU Family

These are clones of the 12- and 14-bit Microchip PIC line of processors, but with a 13-bit instruction word.

EPSON Semiconductor[edit]

  • 4-bit
  • 8-bit
    • S1C88 family
  • 16-bit
    • S1C17 family
  • 32-bit
    • S1C33 family

Espressif Systems[edit]

Espressif Systems, a company with headquarters in Shanghai, China made its debut in the microcontroller scene with their range of inexpensive and feature-packed WiFi microcontrollers such as ESP8266.

  • 32-bit
    • ESP8266
    • ESP32 Xtensa variants
      • ESP32, ESP32-S2, ESP32-S3 SoCs
    • ESP32 RISC-V variants
      • ESP32C2, ESP32C3, ESP32C6, ESP32H2 SoCs

Freescale Semiconductor[edit]

Motorola MC68HC11

Until 2004, these μCs were developed and marketed by Motorola, whose semiconductor division was spun off to establish Freescale. In 2015, Freescale was acquired by NXP.



Holtek Semiconductor is a major Taiwan-based designer of 32-bit microcontrollers, 8-bit microcontrollers and peripheral products. Microcontroller products are centred around an ARM core in the case of 32-bit products and 8051 based core and Holtek's own core in the case of 8-bit products. Located in the Hsinchu Science Park ([1]), the company's product range includes the following microcontroller device series:

  • HT32FXX 32-bit ARM core microcontroller series using Cortex-M0+, M3 and M4 cores
  • HT85FXX 8051 Core based microcontroller series
  • HT48FXX Flash I/O type series
  • HT48RXX I/O type series
  • HT46RXX A/D type series
  • HT49RXX LCD type series
  • HT82XX Computer Peripheral series
  • HT95XX Telecom Peripheral series
  • HT68FXX I/O Type Flash series
  • HT66FXX A/D Type Flash series
  • HT32XX 32-bit ARM core series


  • 32-bit Hyperstone microprocessors: E1, introduced in 1990,[3]: 139  and E2, introduced in 2009[4]


Infineon offers microcontrollers for the automotive, industrial and multimarket industry. DAVE3, a component based auto code generation free tool, provides faster development of complex embedded projects.


X On-chip code memory
0 No on-chip memory
9 Flash

Lattice Semiconductor[edit]

Maxim Integrated[edit]

In 2021, Maxim Integrated was acquired by Analog Devices.

  • 8051 Family
  • MAXQ RISC Family
  • Secure Micros Family
  • ARM 922T
  • MIPS 4kSD

Microchip Technology[edit]

PIC microcontrollers
PIC24 microcontroller

Since 2013, Microchip has shipped over 1 billion PIC microcontrollers per year, growing every year.[5]

Microchip produces microcontrollers with three very different architectures:

8-bit (8-bit data bus) PICmicro, with a single accumulator (8 bits):

  • PIC10 and PIC12: 12-bit instruction words
  • PIC16 series: 14-bit instruction words, one address pointer ("indirect register pair")
    • PIC16F628 (Replacement for very popular but discontinued PIC16F84) – PIC16F84A is still in production as of April 8, 2022.[6]
  • PIC18 series: 16-bit instruction words, three address pointers ("indirect register pairs")

16-bit (16-bit data bus) microcontrollers, with 16 general-purpose registers (each 16-bit)

32-bit (32-bit data bus) microcontrollers:

National Semiconductor[edit]

National Semiconductor COP410L die image


  • 4-bit
    • 17K
    • 75X
    • 75XL
  • 8-bit
    • 87XL
    • 87AD
  • 78K Family (8/16-bit)
    • 8-bit: 78K/1, 78K/2, 78K/0, 78K0S
    • 16-bit: 78K/3, 78K/6, 78K/4, 78K0R
  • 32-bit

Nordic Semiconductor[edit]

Nordic Semiconductor is a company with headquarters in Trondheim, Norway offering low power Bluetooth Low Energy SoCs as well as cellular network connectivity solutions for IoT devices.

  • 32-bit BLE SoCs
    • NRF51, NRF52, NRF53 Series
  • 32-bit Cellular IoT SIP
    • NRF91 Series

NXP Semiconductors[edit]

NXP LPC1114 and LPC1343

Nuvoton Technology[edit]

  • 8-bit
    • 8051 MCUs
    • KM101 MCUs
  • 32-bit
    • ARM Cortex-M0 MCUs
    • ARM Cortex-M4 MCUs
    • ARM Cortex-M7 MCUs
    • ARM Cortex-M23 MCUs
    • KM103 MCUs


Panasonic MN101, used in an electronic glucose meter
Panasonic MN103SH5GRA


  • Basic Stamp
  • SX
    • These were formerly made by Ubicom, former Scenix Semiconductor. The SX die has been discontinued by Ubicom. Parallax has accumulated a large stock of the dies and is managing the packaging.
    • SX-18, 20, 28, 48 and 52 versions (Note that the SX-18 and SX-52 have been discontinued)
  • Propeller
    • The Propeller is a 8-core 32-bit microcontroller with 32 KB internal RAM.

Rabbit Semiconductor[edit]

  • Rabbit 2000
  • Rabbit 3000
  • Rabbit 4000
  • Rabbit 5000
  • Rabbit 6000

Raspberry Pi Foundation[edit]

Renesas Electronics[edit]

Renesas is a joint venture comprising the semiconductor businesses of Hitachi, Mitsubishi Electric and NEC Electronics, creating the largest microcontroller manufacturer in the world.

Redpine Signals[edit]

  • RS14100
  • RS13100


Rockwell semiconductors (now called Conexant) created a line of 6502 based microcontrollers that were used with their telecom (modem) chips. Most of their microcontrollers were packaged in a QIP package.

  • R6501
  • R6511
  • R8070

Silicon Laboratories[edit]

Manufactures a line of 8-bit 8051-compatible microcontrollers, notable for high speeds (50–100 MIPS) and large memories in relatively small package sizes. A free IDE is available that supports the USB-connected ToolStick line of modular prototyping boards. These microcontrollers were originally developed by Cygnal. In 2012, the company introduced ARM-based mixed-signal MCUs with very low power and USB options, supported by free Eclipse-based tools. The company acquired Energy Micro in 2013 and now offers a number of ARM-based 32-bit microcontrollers.

Silicon Motion[edit]

  • SM2XX – Flash memory card controllers
  • SM321 – USB 2.0
  • SM323 – USB 2.0
  • SM323E – USB 2.0
    • Silicon Motion's SM321E and SM324 controllers support SLC and MLC NAND flash from Samsung, Hynix, Toshiba and ST Micro as well as flash products from Renesas, Infineon and Micron. The SM321E is available in a 48-pin LQFP package and a 44-pin LGA package. The SM321E supports up to 4 SLC or MLC NAND flash chips with 4 bytes / 528 bytes ECC
  • SM324 – USB 2.0
    • Supports dual-channel data transfer at read speeds of 233× (35 MB/s) and write speeds of 160× (24 MB/s), making it the fastest USB 2.0 flash disk controller in the market. The SM324 also has serial peripheral interface (SPI) which allows for not only Master and Slave modes, but the flexibility to develop more functionality into USB flash disk (UFD) products such as GPS, fingerprint sensor, Bluetooth and memory-capacity display. The SM324 is available in a 64-pin LQFP package. The SM324 supports 8 SLC or MLC NAND flash chips with 4 bytes / 528 bytes ECC.
  • SM325 – USB 2.0
  • SM330 – USB 2.0
  • SM501, SM502 – Mobile Graphics
  • SM712 – Mobile Graphics
  • SM722 – Mobile Graphics
  • SM340 – MP3/JPEG
  • SM350 – MP3/JPEG
  • SM370 – Image processing


  • SPC700 series
  • SPC900 series
  • SPC970 series
  • SR110 series


Microcontrollers acquired from Fujitsu:

  • F²MC Family (8/16-bit)
  • FR Family (32-bit RISC)
  • FR-V Family (32-bit RISC VLIW/vector processor)
  • FM3 (Cortex M3)
  • FM4 (Cortex M4)
  • FCR4 (Cortex R4 with 90 nm Spansion Flash)


STM32F103VGT6 die
STM32F100C4T6B die


While Synopsys does not manufacture or sell chips directly, Synopsys licenses the ARC Processor design to a variety of companies that, as of 2020, ship about 1.5 billion products based on ARC processors per year.[2]

Texas Instruments[edit]

The Stellaris and Tiva families, in particular, provide a high level of community-based, open source support through the TI e2e forums.[9][10]



  • IP2022
    • Ubicom's IP2022 is a high performance (120 MIPS) 8-bit microcontroller. Features include: 64k flash code memory, 16 KB PRAM (fast code and packet buffering), 4 KB data memory, 8-channel A/D, various timers, and on-chip support for Ethernet, USB, UART, SPI and GPSI interfaces.
  • IP3022
    • IP3022 is Ubicom's latest high performance 32bit processor running at 250 MHz featuring eight hardware threads (barrel processor). It is specifically targeted at Wireless Routers.


Manufactures a line of full-stack MCUs.

  • Arm based chips
    • CH32F103
    • CH32F203
    • CH32F205
    • CH32F207
    • CH32F208
    • CH56X
    • CH57X
  • RISC-V based chips
    • CH32V103
    • CH32V203
    • CH32V208
    • CH32V303
    • CH32V305
    • CH32V307

Western Design Center[edit]

The Western Design Center licenses the 65C02 and 65816 designs to a variety of companies. Those companies produce the 6502 (typically as part of a larger chip) in quantities over a hundred million units per year.[11]


  • XE8000 8-bit microcontroller family




Zilog's (primary) microcontroller families, in chronological order:

  • Older:
  • Newer:
    • Zilog eZ8 – Better pipelined Z8 (2–3 times as clock cycle efficient as original Z8) with on-chip flash memory and SRAM.
    • Zilog eZ80 – Fast 8/16/24-bit Z80 (3–4 times as cycle efficient as original Z80) with flash, SRAM, peripherals; linear addressing of 16 MB.
    • Zilog Z16 – Fast 8/16/32-bit CPU with compact object code; 16 MB (4 GB possible) addressing range; flash, SRAM, peripherals, on chip.

Sortable table[edit]

Company name Name CPU Bits Status Max. MHz Flash KB RAM KB Price @1K USD Active power Sleep power External mem. UARTs SPI I2C CAN Ethernet USB ADCs DACs Features
Energy Micro EFM32TG110 ARM Cortex-M3 32 Production 32 32 4 $2.47 157 μA/MHz @ 32 MHz 1 μA 2 2 1 0 0 1 1 2× 16-bit timers. 12-bit 1 Msps ADC. 12-bit 500 ksps DAC.
Zilog eZ80 Fast Z80 8/16 Production 50 256 16 $7.79 1 1 1 0 0 0 0 Linear addressing up to 16 MB. 3–4× faster than traditional Z80.
Texas Instruments MSP430FR2632 RISC 16 16 8 2 $0.924 126 μA/MHz <5 μA 2 1 1 0 0 8 0 Capacitive touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC


  1. ^ Kat Hall. "UK chip champ ARM flexes muscle: Shows strong profit and sales" 2015.
  2. ^ a b Anton Shilov. "842 Chips Per Second: 6.7 Billion Arm-Based Chips Produced in Q4 2020". 2021.
  3. ^ Weiss, Ray; Schofield, Julie Anne (26 November 1992). "EDN's 19th Annual μP/μC Chip Directory". EDN. pp. 74–79, 81–82, 86, 90–92, 94–95, 97–100, 102–104, 108, 113–116, 119–122, 127–129, 132, 135–136, 139–140, 143–144, 147–148, 151–152, 155–158, 161. Retrieved 16 April 2024.
  4. ^ "Hyperstone : 32-Bit MCU suits cost-sensitive applications". EETimes. 20 February 2009. Retrieved 16 April 2024.
  5. ^ "Microchip Technology Delivers 12 Billionth PIC Microcontroller to Leading Motor Manufacturer, Nidec Corporation". Microchip press release. 2013.
  6. ^ "Dynamic Product Page | Microchip Technology".
  7. ^ "PIC32MX Family Architecture Overview". Architecture - 32-bit PIC Microcontrollers | Microchip Technology Inc. - Architecture | 32-Bit PIC- MCUs | Microchip Technology Inc. Microchip. Retrieved 2016-05-18.
  8. ^ "PIC32MZ Family Architecture Overview". Architecture - 32-bit PIC Microcontrollers | Microchip Technology Inc. - Architecture | 32-Bit PIC- MCUs | Microchip Technology Inc. Microchip. Retrieved 2016-05-18.
  9. ^ "TI introduces simple-to-use OpenLink™ Bluetooth® and Wi-Fi® connectivity inside the WiLink™ 6.0 solution for AM18x Sitara™ ARM® Microprocessors" (Press release). PRNewswire. Retrieved 23 May 2012.
  10. ^ "BeagleBone, $89 Open Source Hardware Platform Features TI Sitara™ AM335x ARM Cortex™-A8 MPU". Avnet. Retrieved 23 May 2012.
  11. ^ Garth Wilson. "6502 PRIMER: Building your own 6502 computer".