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Motorola 68HC16

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The 68HC16 (also abbreviated as HC16) is a highly modular microcontroller family based on the CPU16 16-bit core from Motorola Semiconductor (later from Freescale then NXP). The CPU16 core is a true 16-bit design, with an architecture that is very familiar to 68HC11 (HC11) users.[1] The resemblances to the HC11 core design are a deliberate move to provide an upgrade path for those 8-bit 68HC11 designs that require the increased power of a 16-bit CPU. Many features of the HC16 and the CPU16 core are new to HC11 users.[2]

The HC16 provides a software upgrade path for HC11 users while giving full hardware compatibility with the asynchronous address and data bus found on the 32-bit microprocessors.[3]


  1. ^ Freescale Semiconductor, Inc., M68HC16 Family CPU16 Reference Manual. "M68HC16 Family CPU16 Reference Manual" (PDF).{{cite web}}: CS1 maint: numeric names: authors list (link)
  2. ^ o, Internet archive (1993). "components :: motorola :: 68HC16 :: Motorola 68HC16Y1 Users Manual 1993".
  3. ^ o, Analog devices. "68HC16MODULE".

Further reading