MC68HC908GZ8 Datasheet, PDF (21/344 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Data Sheet — MC68HC908GZ8
Section 1. General Description
1.1 Introduction
The MC68HC908GZ8 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.
1.2 Features
For convenience, features have been organized to reflect:
• Standard features of the MC68HC908GZ8
• Features of the CPU08
1.2.1 Standard Features of the MC68HC908GZ8
Features of the MC68HC908GZ8 include:
• High-performance M68HC08 architecture optimized for
C-compilers
• Fully upward-compatible object code with M6805, M146805, and M68HC05
Families
• 8-MHz internal bus frequency
• Clock generation module supporting 1-MHz to 8-MHz crystals
• MSCAN08 (Motorola scalable controller area network) controller
(implementing 2.0b protocol as defined in BOSCH specification dated
September 1991)
• FLASH program memory security⁽¹⁾
• On-chip programming firmware for use with host personal computer which
does not require high voltage for entry
• In-system programming (ISP)
• System protection features:
– Optional computer operating properly (COP) reset
– Low-voltage detection with optional reset and selectable trip points for
3.3-V and 5.0-V operation
– Illegal opcode detection with reset
– Illegal address detection with reset
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the FLASH difficult for unauthorized users.
MC68HC908GZ8
MOTOROLA
General Description
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Data Sheet
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