MC68HC08AZ32A Datasheet, PDF (19/312 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Chapter 1
General Description
1.1 Introduction
The MC68HC08AZ32A 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
Features include the following:
• High-performance M68HC08 architecture
• Fully upward-compatible object code with M6805, M146805, and M68HC05 Families
• 8.4-MHz internal bus frequency at 125°C
• MSCAN08 controller (scalable CAN) (implementing CAN 2.0b protocol as defined in BOSCH
specification September, 1991)
• Available in 64-pin quad flat pack (QFP)
• 32,256 bytes user read-only memory (ROM)
• User ROM data security⁽¹⁾
• 512 bytes of on-chip electrically erasable programmable read-only memory (EEPROM) with
security feature
• 1 Kbyte of on-chip random-access memory (RAM)
• Serial peripheral interface (SPI) module
• Serial communications interface (SCI) module
• 16-bit timer interface module (TIMA) with six input capture/output compare channels
• 16-bit timer interface module (TIMB) with two input capture/output compare channels
• Programmable interrupt timer (PIT)
• Clock generator module (CGM)
• 8-bit, 15-channel analog-to-digital convertor (ADC)
• 5-bit keyboard interrupt module (KBI)
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the ROM/EEPROM data
difficult for unauthorized users.
MC68HC08AZ32A Data Sheet, Rev. 2
Freescale Semiconductor
19