M68HC12B データシートの表示（PDF） - Motorola => Freescale

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M68HC12B

M68HC12 Microcontrollers

Motorola => Freescale 

Freescale Semiconductor, Inc.

Data Sheet — M68HC12B Family

Section 1. General Description

1.1 Introduction

The MC68HC912B32, MC68HC12BE32 and MC68HC(9)12BC32, are 16-bit

microcontroller units (MCUs) composed of standard on-chip peripherals. The

multiplexed external bus can also operate in an 8-bit narrow mode for interfacing

with single 8-bit wide memory in lower-cost systems. There is a slight feature set

difference between the four pin-for-pin compatible devices as shown in Table 1-1.

Table 1-1. M68HC12B Series Feature Set Comparisons

Features

MC68HC912B32 MC68HC12BE32 MC68HC912BC32 MC68HC12BC32

CPU12

X

X

X

X

Multiplexed bus

X

X

X

X

32-Kbyte FLASH electrically erasable,

programmable read-only memory (EEPROM)

X

X

32-Kbyte read-only memory (ROM)

X

X

768-byte EEPROM

X

X

X

X

1-Kbyte random-access memory (RAM)

X

X

X

X

Analog-to-digital (A/D) converter

X

X

X

X

Standard timer module (TIM)

X

X

X

Enhanced capture timer (ECT)

X

Pulse-width modulator (PWM)

X

X

X

X

Asynchronous serial communications

interface (SCII)

X

X

X

X

Synchronous serial peripheral interface (SPI)

X

X

X

X

J1850 byte data link communication (BDLC)

X

X

Controller area network module (CAN)

X

X

Computer operating properly (COP)

watchdog timer

X

X

X

X

Slow mode clock divider

X

X

X

X

80-pin quad flat pack (QFP)

X

X

X

X

Single-wire background debug mode (BDM)

X

X

X

X

M68HC12B Family — Rev. 9.0

MOTOROLA

General Description

For More Information On This Product,

Go to: www.freescale.com

Data Sheet

19

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