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TS80C51RA2-MCBB

Description
Microcontroller, 8-Bit, 8051 CPU, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44
CategoryThe embedded processor and controller    Microcontrollers and processors   
File Size320KB,74 Pages
ManufacturerAtmel (Microchip)
Download Datasheet View All

TS80C51RA2-MCBB Overview

Microcontroller, 8-Bit, 8051 CPU, 40MHz, CMOS, PQCC44, PLASTIC, LCC-44

TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
High Performance 8-bit Microcontrollers
1. Description
Atmel Wireless & Microcontrollers TS80C51Rx2 is high
performance CMOS ROM, OTP, EPROM and ROMless
versions of the 80C51 CMOS single chip 8-bit
microcontroller.
The TS80C51Rx2 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.
In addition, the TS80C51Rx2 has a Programmable
Counter Array, an XRAM of 256 or 768 bytes, a
Hardware Watchdog Timer, a more versatile serial
channel that facilitates multiprocessor communication
(EUART) and a X2 speed improvement mechanism.
The fully static design of the TS80C51Rx2 allows to
reduce system power consumption by bringing the clock
frequency down to any value, even DC, without loss of
data.
The TS80C51Rx2 has 2 software-selectable modes of
reduced activity for further reduction in power
consumption. In the idle mode the CPU is frozen while
the timers, the serial port and the interrupt system are still
operating. In the power-down mode the RAM is saved
and all other functions are inoperative.
2. 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
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)
On-chip ROM/EPROM (16K-bytes, 32K-bytes, 64K-
bytes)
Power Control modes
Idle mode
Power-down mode
Power-off Flag
Once mode (On-chip Emulation)
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
Power supply: 4.5-5V, 2.7-5.5V
Temperature ranges: Commercial (0 to 70
o
C) and
Industrial (-40 to 85
o
C)
Packages: PDIL40, PLCC44, VQFP44 1.4, CQPJ44
(window), CDIL40 (window), PLCC68, VQFP64
1.4, JLCC68 (window)
Rev. C - 06 March, 2001
1
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