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参数资料
| 型号： | P87C251SQ16 |
| 厂商： | INTEL CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | HIGH-PERFORMANCE CHMOS MICROCONTROLLER |
| 中文描述： | 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDIP40 |
| 封装： | PLASTIC, DIP-40 |
| 文件页数： | 1/35页 |
| 文件大小： | 186K |
| 代理商： | P87C251SQ16 |
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PRELIMINARY
COPYRIGHT INTEL CORPORATION, 1996
May 1996
Order Number:
272783-003
8XC251SA/SB/SP/SQ
HIGH-PERFORMANCE
CHMOS MICROCONTROLLER
Commercial/Express
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.
I
Real-time and Programmed Wait State
Bus Operation
I
Binary-code Compatible with MCS
51
I
Pin Compatible with 44-pin PLCC and 40-
pin PDIP MCS 51 Sockets
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Register-based MCS
251 Architecture
— 40-byte Register File
— Registers Accessible as Bytes, Words,
or Double Words
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Enriched MCS 51 Instruction Set
— 16-bit and 32-bit Arithmetic and Logic
Instructions
— Compare and Conditional Jump
Instructions
— Expanded Set of Move Instructions
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Linear Addressing
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256-Kbyte Expanded External Code/Data
Memory Space
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ROM/OTPROM/EPROM Options:
16 Kbytes (SB/SQ), 8 Kbytes (SA/SP), or
without ROM/OTPROM/EPROM
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16-bit Internal Code Fetch
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64-Kbyte Extended Stack Space
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On-chip Data RAM Options:
1-Kbyte (SA/SB) or 512-Byte (SP/SQ)
I
8-bit, 2-clock External Code Fetch in
Page Mode
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Fast MCS 251 Instruction Pipeline
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User-selectable Configurations:
— External Wait States (0-3 wait states)
— Address Range & Memory Mapping
— Page Mode
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32 Programmable I/O Lines
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Seven Maskable Interrupt Sources
with Four Programmable Priority
Levels
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Three Flexible 16-bit Timer/counters
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Hardware Watchdog Timer
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Programmable Counter Array
— High-speed Output
— Compare/Capture Operation
— Pulse Width Modulator
— Watchdog Timer
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Programmable Serial I/O Port
— Framing Error Detection
— Automatic Address Recognition
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High-performance CHMOS Technology
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Static Standby to 16-MHz Operation
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Complete System Development
Support
— Compatible with Existing Tools
— New MCS 251 Tools Available:
Compiler, Assembler, Debugger, ICE
I
Package Options (PDIP, PLCC, and
Ceramic DIP)
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