Freescale Semiconductor, Inc.
General Description
1.2 Introduction
The MC68HC908AS60 is a member of the low-cost, high-performance
M68HC08 Family of 8-bit microcontroller units (MCU). The M68HC08
Family is based on the customer-specified integrated circuit (CSIC)
design strategy. 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.
This part is designed to emulate the M68HC08ASxx automotive family.
NOTE: The MC68HC908AS60 offers extra features which are not available on
the MC68HC08AS20 and MC68HC908AS32 devices. It is the user’s
responsibility to ensure compatibility between the features used on the
MC68HC908AS60 and those which are available on the device which
will ultimately be used in the application.
1.3 Features
Features of the MC68HC908AS60 include:
• High-performance M68HC08 architecture
• Fully upward-compatible object code with M6805, M146805, and
M68HC05 Families
• 8.4-MHz internal bus frequency
• 60 Kbytes of FLASH electrically erasable read-only memory
(FLASH)
• FLASH data security(1)
• 1 Kbyte of on-chip electrically erasable programmable read-only
memory (EEPROM) with security option
• 2 Kbytes of on-chip random-access memory (RAM)
• Clock generator module (CGM)
• Serial peripheral interface module (SPI)
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the FLASH/EEPROM difficult for unauthorized users.
Technical Data
MC68HC908AS60 — Rev. 1.0
General Description
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