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 Security1

• 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.

Advance Information

MC68HC(7)08KH12 — Rev. 1.1

 

 

 

 

24

Freescale Semiconductor

Page 23 Page 25
Page 24
Image 24
Freescale Semiconductor MC68HC08KH12 manual Introduction, Features
Page 23 Page 25

MC68HC08KH12 specifications

The Freescale Semiconductor MC68HC08KH12 is a versatile microcontroller that has gained popularity in various embedded systems applications. Part of the HC08 family, this microcontroller combines a robust architecture with comprehensive on-chip features, making it suitable for a wide range of applications ranging from industrial control to consumer electronics.

One of the main features of the MC68HC08KH12 is its 8-bit architecture, which provides an optimal balance between performance and power efficiency. It operates at clock speeds of up to 2 MHz, allowing for efficient execution of instructions while maintaining low power consumption. The microcontroller is designed to operate over a voltage range of 2.7 to 5.5 volts, making it adaptable to various system requirements.

The MC68HC08KH12 is equipped with 1 Kbyte of RAM and 12 Kbytes of ROM, which allows for substantial program and data storage. The on-chip memory helps reduce the need for external components, simplifying the design of embedded systems and enhancing reliability. With a wide range of I/O options, including 26 general-purpose I/O pins, the microcontroller provides flexibility in interfacing with sensors, actuators, and other devices.

In terms of technologies, the MC68HC08KH12 features an advanced instruction set that enhances programming efficiency. It supports basic arithmetic operations, bit manipulation, and control transfer instructions, making it suitable for a variety of computational tasks. The integrated timers, analog-to-digital converters, and serial communication interfaces, including UART, provide the necessary tools for real-time control and data exchange with peripheral devices.

Another characteristic of the MC68HC08KH12 is its low power mode capabilities, which allow it to enter a sleep state during periods of inactivity. This feature is essential in battery-powered applications, where minimizing power consumption is crucial for extending operational life.

Overall, the Freescale Semiconductor MC68HC08KH12 stands out as a reliable microcontroller that combines performance, flexibility, and power efficiency. Its extensive features and technologies enable engineers to design robust embedded systems that meet the demands of modern applications. As a result, the MC68HC08KH12 remains a valuable choice for developers seeking a highly functional yet cost-effective microcontroller solution.
Top Page Image Contents