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N87C251SB16 参数 Datasheet PDF下载

N87C251SB16图片预览
型号: N87C251SB16
PDF下载: 下载PDF文件 查看货源
内容描述: 高性能CHMOS微控制器 [HIGH-PERFORMANCE CHMOS MICROCONTROLLER]
分类和应用: 微控制器
文件页数/大小: 36 页 / 408 K
品牌: INTEL [ INTEL CORPORATION ]
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PRELIMINARY
8XC251SA/SB/SP/SQ
HIGH-PERFORMANCE
CHMOS MICROCONTROLLER
Commercial/Express
s
Real-time and Programmed Wait State
Bus Operation
s
Binary-code Compatible with MCS
®
51
s
Pin Compatible with 44-pin PLCC and 40-
pin PDIP MCS 51 Sockets
s
Register-based MCS
®
251 Architecture
— 40-byte Register File
— Registers Accessible as Bytes, Words,
or Double Words
s
Enriched MCS 51 Instruction Set
— 16-bit and 32-bit Arithmetic and Logic
Instructions
— Compare and Conditional Jump
Instructions
— Expanded Set of Move Instructions
s
Linear Addressing
s
256-Kbyte Expanded External Code/Data
Memory Space
s
ROM/OTPROM/EPROM Options:
16 Kbytes (SB/SQ), 8 Kbytes (SA/SP), or
without ROM/OTPROM/EPROM
s
16-bit Internal Code Fetch
s
64-Kbyte Extended Stack Space
s
On-chip Data RAM Options:
1-Kbyte (SA/SB) or 512-Byte (SP/SQ)
s
8-bit, 2-clock External Code Fetch in
Page Mode
s
Fast MCS 251 Instruction Pipeline
s
User-selectable Configurations:
— External Wait States (0-3 wait states)
— Address Range & Memory Mapping
— Page Mode
s
32 Programmable I/O Lines
s
Seven Maskable Interrupt Sources
with Four Programmable Priority
Levels
s
Three Flexible 16-bit Timer/counters
s
Hardware Watchdog Timer
s
Programmable Counter Array
— High-speed Output
— Compare/Capture Operation
— Pulse Width Modulator
— Watchdog Timer
s
Programmable Serial I/O Port
— Framing Error Detection
— Automatic Address Recognition
s
High-performance CHMOS Technology
s
Static Standby to 16-MHz Operation
s
Complete System Development
Support
— Compatible with Existing Tools
— New MCS 251 Tools Available:
Compiler, Assembler, Debugger, ICE
s
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.
COPYRIGHT © INTEL CORPORATION, 1996
May 1996
Order Number:
272783-003