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| 型號(hào)： | MC68B912B32FU8 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-Bit Microcontroller |
| 中文描述： | 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP80 |
| 封裝： | QFP-80 |
| 文件頁(yè)數(shù)： | 1/128頁(yè) |
| 文件大小： | 748K |
| 代理商： | MC68B912B32FU8 |
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by MC68HC912B32TS/D
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This document contains information on a new product. Specifications and information herein are subject to change without notice.
MOTOROLA INC., 1997
MOTOROLA
SEMICONDUCTOR
TECHNICAL DATA
MC68HC912B32
Technical Summary
16-Bit Microcontroller
1 Introduction
The MC68HC912B32 microcontroller unit (MCU) is a 16-bit device composed of standard on-chip pe-
ripherals including a 16-bit central processing unit (CPU12), 32-Kbyte flash EEPROM, 1-Kbyte RAM,
768-byte EEPROM, an asynchronous serial communications interface (SCI), a serial peripheral inter-
face (SPI), an 8-channel timer and 16-bit pulse accumulator, an 8-bit analog-to-digital converter (ADC),
a four-channel pulse-width modulator (PWM), and a J1850-compatible byte data link communications
module (BDLC). The chip is the first 16-bit microcontroller to include both byte-erasable EEPROM and
flash EEPROM on the same device. System resource mapping, clock generation, interrupt control and
bus interfacing are managed by the Lite integration module (LIM). The MC68HC912B32 has full 16-bit
data paths throughout, however, the multiplexed external bus can operate in an 8-bit narrow mode so
single 8-bit wide memory can be interfaced for lower cost systems.
1.1 Features
16-Bit CPU12
— Upward Compatible with M68HC11 Instruction Set
— Interrupt Stacking and Programmer’s Model Identical to M68HC11
— 20-Bit ALU
— Instruction Queue
— Enhanced Indexed Addressing
— Fuzzy Logic Instructions
Multiplexed Bus
— Single Chip or Expanded
— 16/16 Wide or 16/8 Narrow Modes
Memory
— 32-Kbyte Flash EEPROM with 2-Kbyte Erase-Protected Boot Block
— 768-B yte EEPROM
— 1-Kbyte RAM with Single-Cycle Access for Aligned or Misaligned Read/Write
8-Channel, 8-Bit Analog-to-Digital Converter
8-Channel Timer
— Each Channel Fully Configurable as Either Input Capture or Output Compare
— Simple PWM Mode
— Modulo Reset of Timer Counter
16-Bit Pulse Accumulator
— External Event Counting
— Gated Time Accumulation
Pulse-Width Modulator
— 8-Bit, 4-Channel or 16-Bit, 2-Channel
— Separate Control for Each Pulse Width and Duty Cycle
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