MC68HC908GZ16 Datasheet, PDF (21/314 Pages) Motorola, Inc – Microcontrollers

Chapter 1
General Description
1.1 Introduction
The MC68HC908GZ16 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.
0.
Table 1-1. Summary of Device Variations
Device
MC68HC908QZ16
MC68HC908GZ8
Memory Size
16 Kbytes user FLASH
8 Kbytes user FLASH
The information contained in this document pertains to both the MC68HC908GZ16 and the
MC68HC908GZ8 with the exceptions shown Appendix A. MC68HC908GZ8
1.2 Features
For convenience, features have been organized to reflect:
• Standard features
• Features of the CPU08
1.2.1 Standard Features
Features 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 (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)
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the FLASH difficult for
unauthorized users.
MC68HC908GZ16 • MC68HC908GZ8 Data Sheet, Rev. 1
Freescale Semiconductor
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