Datasheet > 87C251SP16

87C251SP16

更新时间： 2022-06-05 03:46:39

品牌	Logo	应用领域
英特尔 - INTEL		微控制器
页数	文件大小	规格书
36页	406K
描述
HIGH-PERFORMANCE CHMOS MICROCONTROLLER

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数据手册

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87C251SP16 数据手册

PRELIMINARY

8XC251SA/SB/SP/SQ

HIGH-PERFORMANCE

CHMOS MICROCONTROLLER

Commercial/Express

■ Real-time and Programmed Wait State

Bus Operation

■ User-selectable Configurations:

— External Wait States (0-3 wait states)

— Address Range & Memory Mapping

— Page Mode

■ Binary-code Compatible with MCS 51

■ Pin Compatible with 44-pin PLCC and 40-

pin PDIP MCS 51 Sockets

■ 32 Programmable I/O Lines

■ Register-based MCS 251 Architecture

■ Seven Maskable Interrupt Sources

with Four Programmable Priority

Levels

— 40-byte Register File

— Registers Accessible as Bytes, Words,

or Double Words

■ Three Flexible 16-bit Timer/counters

■ Hardware Watchdog Timer

■ Programmable Counter Array

— High-speed Output

■ Enriched MCS 51 Instruction Set

— 16-bit and 32-bit Arithmetic and Logic

Instructions

— Compare and Conditional Jump

Instructions

— Compare/Capture Operation

— Pulse Width Modulator

— Expanded Set of Move Instructions

— Watchdog Timer

■ Linear Addressing

■ Programmable Serial I/O Port

— Framing Error Detection

■ 256-Kbyte Expanded External Code/Data

Memory Space

■ ROM/OTPROM/EPROM Options:

16 Kbytes (SB/SQ), 8 Kbytes (SA/SP), or

without ROM/OTPROM/EPROM

— Automatic Address Recognition

■ High-performance CHMOS Technology

■ Static Standby to 16-MHz Operation

■ 16-bit Internal Code Fetch

■ Complete System Development

■ 64-Kbyte Extended Stack Space

Support

■ On-chip Data RAM Options:

— Compatible with Existing Tools

1-Kbyte (SA/SB) or 512-Byte (SP/SQ)

— New MCS 251 Tools Available:

■ 8-bit, 2-clock External Code Fetch in

Compiler, Assembler, Debugger, ICE

Page Mode

■ Fast MCS 251 Instruction Pipeline

■ Package Options (PDIP, PLCC, and

Ceramic DIP)

A member of the Intel family of 8-bit MCS 251 microcontrollers, the 8XC251SA/SB/SP/SQ is binary-code

compatible with MCS 51 microcontrollers and pin compatible with 40-pin PDIP and 44-pin PLCC MCS 51

microcontrollers. MCS 251 microcontrollers feature an enriched instruction set, linear addressing, and

efficient C-language support. The 8XC251SA/SB/SP/SQ has 512 bytes or 1 Kbyte of on-chip RAM and is

available with 8 Kbytes or 16 Kbytes of on-chip ROM/OTPROM/EPROM, or without ROM/OTPROM/EPROM.

A variety of features can be selected by new user-programmable configurations.

May 1996

Order Number: 272783-003

12 3 4 5 6 7...36

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