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Part: 8XC251SQ
Category:
Microcontrollers
-> CISC->8051/80C51 Family->8031/8051
Description: High-performance Chmos Microcontroller
Company: Intel Corporation
Datasheet: Download 8XC251SQ datasheet File size : 47 kB
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Datasheet text preview:
PRELIMINARY
8 XC25 1SA/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 40pin 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 Program mable Counter Array -- High-speed Output -- Compare/Capture Operation -- Pulse Width Modulator -- Watchdog Timer s Program mable 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 com pa ti bl e with MCS 51 microcontrollers and pin compatible with 40-pin PDIP and 44-pin PLCC MCS 51 microco ntro ll ers. MCS 251 microcontrollers feature an enriched instruction set, linear addressing, and effi cien t C-language support. The 8XC251SA/SB/SP/SQ has 512 bytes or 1 Kbyte of on-chip RAM and is ava ila bl e 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.
COPY RI GHT © INTEL CORPORATION, 1996
May 1996
Orde r Number: 272783-003
Information in this document is provided in connection with Intel products. No license, express or implied, by estop pe l or otherwise, to any intellectual property rights is granted by this document. Except as provided in Inte l's Terms and Conditions of Sale for such products, Intel assumes no liability whatsoever, and Intel disclai ms any express or implied warranty, relating to sale and/or use of Intel products including liability or wa rra nties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are not intended for use in medical, life saving, or life susta in in g applications. Inte l retains the right to make changes to specifications and product descriptions at any time, without notice. *Third-p arty brands and names are the property of their respective owners. Co pies of documents which have an ordering number and are referenced in this document, or other Intel lite rature , may be obtained from: Inte l Corporation P.O. Box 7641 Mt. Prospect IL 60056-764 or call 1-800-548-4725
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
System Bus and I/O Ports P0.7:0 P2.7:0 O Port 0 Drivers Port 2 Drivers Code TPROM/ROM 8 Kbytes 1 or 6 Kbytes
P I/O Ports and eripheral Signals P1.7:0 P3.7:0
Data RAM 512 Bytes 1 or 024 Bytes
Port 1 Drivers
Port 3 Drivers
Memory Data (16)
Memory Address (16)
Watchdog T imer
Bus Interface Code Bus (16) Code Address (24)
Peripheral I nterface CTimer/ ounters
Instruction Sequencer
Data Address (24)
IHterrupt n andler
IB Bus (8)
PCA
SRC2 (8)
Data Bus (8)
SRC1 (8)
Serial I/O Cl&ck o R eset Peripherals
ALU
Register F ile
MData I emory nterface
DST (16)
MCS® 251 Microcontroller Core
Clock & Reset
8XC251SA/SB/SP/SQ Microcontroller
A4214-01
Figure 1. 8XC251SA/SB/SP/SQ Block Diagram
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8XC 251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
1.0
NOMENCLATURE
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Figu re 2. The 8XC251SA/SB/SP/SQ Family Nomenclature Table 1. Description of Product Nomenclature Pa ram eter Tempe rature and Burn-in Options Options no mark T P ackaging Options N P C P rogram Memory Options 0 3 7 P rocess Information P roduct Family De vice Memory Options C 251 SA SB SP SQ De vice Speed 16 Description Com mercial operating temperature range (0°C to 70°C) with Intel standard burn-in. Express operating temperature range (-40°C to 85°C) with Intel standard burn-in. 44-pin Plastic Leaded Chip Carrier (PLCC) 40-pin Plastic Dual In-line Package (PDIP) 40-pin Ceramic Dual In-line Package (Ceramic DIP) Without ROM/OTPROM/EPROM ROM User programmable OTPROM/EPROM CHMOS 8-bit control architecture 1-Kbyte RAM/8-Kbyte ROM/OTPROM/EPROM 1-Kbyte RAM/16-Kbyte ROM/OTPROM/EPROM or without ROM/OTPROM/EPROM 512-byte RAM/8-Kbyte ROM/OTPROM/EPROM 512-byte RAM/16-Kbyte ROM/OTPROM/EPROM or without ROM/OTPROM/EPROM External clock frequency
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A2815-01
4
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8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Table 2 lists the proliferation options. See Figure 2 for the 8XC251SA/SB/SP/SQ family nomenclature.
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Tabl e 2. Proliferation Options 8XC251SA/SB /SP/ SQ (0 16 MHz; 5 V ±10%) 80C251SB16 80C251SQ16 83C251SA16 83C251SB16 83C251SP16 83C251SQ16 87C251SA16 87C251SB16 87C251SP16 87C251SQ16 Table 3 lists the 8XC251SA/SB/SP/SQ packages. Tabl e 3. Package Information Pkg. N P C TN TP Defin itio n 44 ld. PLCC 40 ld. Plastic DIP 40 ld. Ceramic DIP 44 ld. PLCC 40 ld. Plastic DIP Temperature 0°C to +70°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C C PU-only C PU-only R OM R OM R OM R OM OT PROM /EPROM OT PROM /EPROM OT PROM /EPROM OTPROM/EPROM
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Others parts begin by 8x
8X-1
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