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8XC251SP Scheda tecnica(PDF) 1 Page - Intel Corporation |
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8XC251SP Scheda tecnica(HTML) 1 Page - Intel Corporation |
1 / 36 page 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. 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) |
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