MC68HC05C9E 데이터 시트보기 (PDF) - Freescale Semiconductor

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MC68HC05C9E

M68HC05 Microcontrollers

Freescale Semiconductor 

Chapter 1

General Description

1.1 Introduction

The MC68HC05C9E HCMOS (high-density complementary metal-oxide semiconductor) microcontroller

is a member of the M68HC05 Family. The MC68HC05C9E memory map consists of 15,936 bytes of user

ROM and 352 bytes of RAM. The MC68HC05C9E includes a serial communications interface, a serial

peripheral interface, and a 16-bit capture/compare timer.

1.2 Features

Features of the MC68HC05C9E include:

• M68HC05 CPU

• Mask programmable interrupt capability on port B

• Software programmable external interrupt sensitivity

• 15,936 bytes of read-only memory (ROM)

• 352 bytes of random-access memory (RAM)

• Memory mapped input/output (I/O)

• 31 bidirectional I/O lines with high current sink and source

on PC7

• Asynchronous serial communications interface (SCI)

• Synchronous serial peripheral interface (SPI)

• 16-Bit capture/compare timer

• Computer operating properly (COP) watchdog timer and clock monitor

• Power-saving wait and stop modes

• On-chip crystal oscillator connections

• Single 4.5 volts to 5.5 volts power supply requirement

• ROM contents security(1) feature

• Available packages:

– 40-pin dual in-line (DIP)

– 44-pin quad flat pack (QFP)

1.3 Mask Options

Eight mask options are available to select external interrupt capability (including an internal pullup device)

on each of the port B pins.

1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the ROM difficult for

unauthorized users.

MC68HC05C9E Advance Information Data Sheet, Rev. 0.1

Freescale Semiconductor

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