MC68HC708AS48 datasheet(28/396 Pages) FREESCALE

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General Description

Advance Information

MC68HC708AS48 — Rev. 4.0

General Description

MOTOROLA

1.2 Introduction

The MC68HC708AS48 is a member of the low-cost, high-performance

M68HC08 Family of 8-bit microcontroller units (MCUs). 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.

1.3 Features

Features of the MC68HC708AS48 include:

•

High-performance M68HC08 architecture

•

Fully upward-compatible object code with M6805, M146805, and

M68HC05 Families

•

8.4-MHz internal bus frequency

•

49,152 bytes of on-chip UV erasable programmable read-only

memory (EPROM) or one-time programmable read-only memory

(OTPROM)

•

On-chip programming firmware for use with host personal

computer

•

EPROM/OTPROM data security1

•

640 bytes of on-chip electrically erasable programmable read-only

memory (EEPROM)

•

1,536 bytes of on-chip RAM

•

Serial peripheral interface module (SPI)

•

Serial communications interface module (SCI)

•

16-bit, 6-channel timer interface module (TIM)

•

Clock generator module (CGM)

1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or

copying the EPROM/OTPROM difficult for unauthorized users.

MC68HC708AS48 データシート(PDF) 28 Page - Freescale Semiconductor, Inc

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