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8XC251TQ Datasheet

  • 8XC251TQ

  • HIGH-PERFORMANCE CHMOS MICROCONTROLLER

  • 34頁

  • INTEL   INTEL

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ADVANCE INFORMATION
8xC251TA/TB/TP/TQ
HIGH-PERFORMANCE CHMOS MICROCONTROLLER
Commercial/Express
s
Real-time and Programmed Wait State
s
User-selectable Configurations:
Bus Operation
s
Binary-code Compatible with MCS
廬
51
s
Pin Compatible with 44-pin PLCC and
40-pin PDIP MCS 51 Sockets
s
Register-based MCS
廬
251 Architecture
鈥?40-byte Register File
鈥?Registers Accessible as Bytes,
Words, or Double Words
s
Enriched MCS 51 Instruction Set
鈥?16-bit and 32-bit Arithmetic and
Logic Instructions
鈥?Compare and Conditional Jump
Instructions
鈥?Expanded Set of Move Instructions
s
Linear Addressing
s
256-Kbyte Expanded External
鈥?External Wait States (0-3 wait
states)
鈥?Address Range & Memory Mapping
鈥?Page Mode
鈥?Extended Data Float Timings or
8xC251Sx Compatible AC Timings
s
32 Programmable I/O Lines
s
Eight Maskable Interrupt Sources with
Four Programmable Priority Levels
s
Three Flexible 16-bit Timer/counters
s
Hardware Watchdog Timer
s
Programmable Counter Array
Code/Data Memory Space
s
ROM Options:
16 Kbytes (TB/TQ), 8 Kbytes (TA/TP), or
without ROM
s
16-bit Internal Code Fetch
s
64-Kbyte Extended Stack Space
s
On-chip Data RAM Options:
鈥?High-speed Output
鈥?Compare/Capture Operation
鈥?Pulse Width Modulator
鈥?Watchdog Timer
s
Two Programmable Serial I/O Ports
鈥?Framing Error Detection
鈥?Automatic Address Recognition
s
High-performance CHMOS Technology
s
Static Standby to 24-MHz Operation
s
Complete System Development
1-Kbyte (TA/TB) or 512-Byte (TP/TQ)
s
8-bit, 2-clock External Code Fetch in
Page Mode
s
Fast MCS 251 Instruction Pipeline
Support
鈥?Compatible with Existing Tools
鈥?MCS 251 Tools Available:
Compiler, Assembler, Debugger,
ICE
s
Package Options (PDIP and PLCC)
漏 INTEL CORPORATION, 1997
November, 1997
Order Number:
273129-001

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