AT89C51RD2SLSIM ATMEL Corporation, AT89C51RD2SLSIM Datasheet

AT89C51RD2SLSIM

Manufacturer Part Number

AT89C51RD2SLSIM

Description

PLCC

Manufacturer

ATMEL Corporation

Datasheet

1.AT89C51ED2RLRIM.pdf (137 pages)

Specifications of AT89C51RD2SLSIM

Date_code

08+

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Features

•

Description

AT89C51RD2/ED2 is high performance CMOS Flash version of the 80C51 CMOS sin-

gle chip 8-bit microcontroller. It contains a 64-Kbyte Flash memory block for code and

for data.

The 64-Kbytes Flash memory can be programmed either in parallel mode or in serial

mode with the ISP capability or with software. The programming voltage is internally

generated from the standard V

80C52 Compatible

Integrated Power Monitor (POR/PFD) to Supervise Internal Power Supply

ISP (In-System Programming) Using Standard V

2048 Bytes Boot ROM Contains Low Level Flash Programming Routines and a Default

Serial Loader

High-speed Architecture

64K Bytes On-chip Flash Program/Data Memory

On-chip 1792 bytes Expanded RAM (XRAM)

On-chip 2048 Bytes EEPROM Block for Data Storage (AT89C51ED2 Only)

Dual Data Pointer

Variable Length MOVX for Slow RAM/Peripherals

Improved X2 Mode with Independent Selection for CPU and Each Peripheral

Keyboard Interrupt Interface on Port 1

SPI Interface (Master/Slave Mode)

8-bit Clock Prescaler

16-bit Programmable Counter Array

Asynchronous Port Reset

Full-duplex Enhanced UART with Dedicated Internal Baud Rate Generator

Low EMI (Inhibit ALE)

Hardware Watchdog Timer (One-time Enabled with Reset-Out), Power-off Flag

Power Control Modes: Idle Mode, Power-down Mode

Single Range Power Supply: 2.7V to 5.5V

Industrial Temperature Range (-40 to +85°C)

Packages: PLCC44, VQFP44, PLCC68, VQFP64, PDIL40

– 8051 Instruction Compatible

– Six 8-bit I/O Ports (64 Pins or 68 Pins Versions)

– Four 8-bit I/O Ports (44 Pins Version)

– Three 16-bit Timer/Counters

– 256 Bytes Scratch Pad RAM

– 9 Interrupt Sources with 4 Priority Levels

– In Standard Mode:

– In X2 mode (6 Clocks/machine cycle)

– Byte and Page (128 Bytes) Erase and Write

– 100k Write Cycles

– Software Selectable Size (0, 256, 512, 768, 1024, 1792 Bytes)

– 768 Bytes Selected at Reset for T89C51RD2 Compatibility

– 100K Write Cycles

– High Speed Output

– Compare/Capture

– Pulse Width Modulator

– Watchdog Timer Capabilities

40 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)

60 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)

20 MHz (Vcc 2.7V to 5.5V, both Internal and external code execution)

30 MHz (Vcc 4.5V to 5.5V and Internal Code execution only)

pin.

Power Supply

8-bit Flash

Microcontroller

AT89C51RD2

AT89C51ED2

Rev. 4235H–8051–10/06

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