Microcontrollers Data Sheet

Advance Information MC68HC(7)08KH12 — Rev. 1.1

24 Freescale Semiconductor

1.2 Introduction

The MC68HC(7)08KH12 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 MC68HC(7)08KH12 include the following:

• High-Performance M68HC08 Architecture

• Fully Upward-Compatible Object Code with M6805, M146805,

and M68HC05 Families

• 6 MHz Internal Bus Operation

• Low-Power Design (Fully Static with Stop and Wait Modes)

• 12 KBytes of User ROM (MC68HC08KH12) or One-Time

Programmable (OTP) ROM (MC68HC708KH12)

• On-Chip Programming Firmware for Use with Host Personal

Computer

• ROM/OTPROM Data Security

• 384 Bytes of On-Chip Random Access Memory (RAM)

• 42 General Purpose I/O, 29 with Software Configurable Pullups

• 16-Bit, 2-Channel Timer Interface Module (TIM)

• 20-Bit Keyboard Interrupt Port

• 5 LED Direct Drive Port Pins

• 48MHz Phase-Locked Loop

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

copying the ROM/OTPROM difficult for unauthorized users.