T80C251TB データシートの表示（PDF） - Intel

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T80C251TB

HIGH-PERFORMANCE CHMOS MICROCONTROLLER

Intel 

8xC251TB/TQ

HIGH-PERFORMANCE CHMOS MICROCONTROLLER

Commercial/Express

■ Real-time and Programmed Wait State

Bus Operation

■ Binary-code Compatible with MCS® 51

■ Pin Compatible with 44-pin PLCC and

40-pin PDIP MCS 51 Sockets

■ Register-based MCS® 251 Architecture

— 40-byte Register File

— Registers Accessible as Bytes,

Words, or Double Words

■ Enriched MCS 51 Instruction Set

— 16-bit and 32-bit Arithmetic and

Logic Instructions

— Compare and Conditional Jump

Instructions

— Expanded Set of Move Instructions

■ Linear Addressing

■ 256-Kbyte Expanded External

Code/Data Memory Space

■ ROM Options:

16 Kbytes or without ROM

■ 16-bit Internal Code Fetch

■ 64-Kbyte Extended Stack Space

■ On-chip Data RAM Options:

512-Byte

■ 8-bit, 2-clock External Code Fetch in

Page Mode

■ Fast MCS 251 Instruction Pipeline

■ User-selectable Configurations:

— External Wait States (0-3 wait

states)

— Address Range & Memory Mapping

— Page Mode

— Extended Data Float Timings or

8xC251Sx Compatible AC Timings

■ 32 Programmable I/O Lines

■ Eight Maskable Interrupt Sources with

Four Programmable Priority Levels

■ Three Flexible 16-bit Timer/counters

■ Hardware Watchdog Timer

■ Programmable Counter Array

— High-speed Output

— Compare/Capture Operation

— Pulse Width Modulator

— Watchdog Timer

■ Two Programmable Serial I/O Ports

— Framing Error Detection

— Automatic Address Recognition

■ High-performance CHMOS Technology

■ Static Standby to 24-MHz Operation

■ Complete System Development

Support

— Compatible with Existing Tools

— MCS 251 Tools Available: Compiler,

Assembler, Debugger, ICE

■ Package Options (PDIP and PLCC)

© INTEL CORPORATION

December 2003

Order Number: 273129-002

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