TS80C51RA2集成电路（IC）的微控制器规格书PDF中文资料

描述 Description

Atmel TS8xC51Rx2 is a high performance CMOS ROM, OTP, EPROM and ROMless versions of the 80C51 CMOS single chip 8-bit microcontroller. The TS8xC51Rx2 retains all features of the 80C51 with extended ROM/EPROM capacity (16/32/64 Kbytes), 256 bytes of internal RAM, a 7-source , 4-level interrupt system, an on-chip oscilator and three timer/counters.

特性 Features

• 80C52 Compatible

– 8051 pin and instruction compatible

– Four 8-bit I/O ports

– Three 16-bit timer/counters

– 256 bytes scratchpad RAM

• High-Speed Architecture

– 40 MHz @ 5V, 30MHz @ 3V

– X2 Speed Improvement capability (6 clocks/machine cycle)

– 30 MHz @ 5V, 20 MHz @ 3V (Equivalent to

– 60 MHz @ 5V, 40 MHz @ 3V)

• Dual Data Pointer

• On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-bytes)

• On-chip eXpanded RAM (XRAM) (256 or 768 bytes)

• Programmable Clock Out and Up/Down Timer/Counter 2

• Programmable Counter Array with

– High Speed Output,

– Compare / Capture,

– Pulse Width Modulator,

– Watchdog Timer Capabilities

• Hardware Watchdog Timer (One-time enabled with Reset-Out)

• 2 extra 8-bit I/O ports available on RD2 with high pin count packages

• Asynchronous port reset

• Interrupt Structure with

– 7 Interrupt sources,

– 4 level priority interrupt system

• Full duplex Enhanced UART

– Framing error detection

– Automatic address recognition

• Low EMI (inhibit ALE)

• Power Control modes

– Idle mode

– Power-down mode

– Power-off Flag

• Once mode (On-chip Emulation)

• Power supply: 4.5-5V, 2.7-5.5V

• Temperature ranges: Commercial (0 to 70oC) and Industrial (-40 to 85oC)

• Packages: PDIL40, PLCC44, VQFP44 1.4, PLCC68, VQFP64 1.4