Data Sheet — MC68HC908MR32 • MC68HC908MR16
Section 1. General Description
1.1 Introduction
The MC68HC908MR32 is a member of the low-cost, high-performance M68HC08
Family of 8-bit microcontroller units (MCUs). All MCUs in the family use the
enhanced M68HC08 central processor unit (CPU08) and are available with a
variety of modules, memory sizes and types, and package types.
The information contained in this document pertains to the MC68HC908MR16 with
the exceptions shown in Appendix A. MC68HC908MR16.
1.2 Features
Features include:
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High-performance M68HC08 architecture
Fully upward-compatible object code with M6805, M146805, and M68HC05
Families
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8-MHz internal bus frequency
On-chip FLASH memory with in-circuit programming capabilities of FLASH
program memory:
MC68HC908MR32 — 32 Kbytes
MC68HC908MR16 — 16 Kbytes
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On-chip programming firmware for use with host personal computer
FLASH data security(1)
768 bytes of on-chip random-access memory (RAM)
12-bit, 6-channel center-aligned or edge-aligned pulse-width modulator
(PWMMC)
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Serial peripheral interface module (SPI)
Serial communications interface module (SCI)
16-bit, 4-channel timer interface module (TIMA)
16-bit, 2-channel timer interface module (TIMB)
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading
or copying the FLASH difficult for unauthorized users.
MC68HC908MR32 • MC68HC908MR16 — Rev. 6.0
MOTOROLA
Data Sheet
19
General Description
FREESCALE [ Freescale ]
