T89C51RC2-RLTIL datasheet(2/9 Pages) ATMEL

Part #	T89C51RC2-RLTIL

Description	8-bit Microcontroller with 16 Kbytes/ 32 Kbytes FLASH

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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2

Rev. B - 30-Mar-01

Preliminary

T89C51RB2/RC2

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

• Power control modes:

• Idle Mode.

• Power-down mode.

-50

µA at 3V

- 100

µA Commercial at 5V

- 150

µA Industrial at 5V

• Power-Off Flag.

• Power supply: 4.5 to 5.5V or 2.7 to 3.6V

• Temperature ranges: Commercial (0 to +70°C) and industrial (-40°C to +85°C).

• Packages: PDIL40, PLCC44, VQFP44

Table 1. Memory Size

3. Block Diagram

Flash (bytes)

XRAM (bytes)

TOTAL RAM

(bytes)

I/O

T89C51RB2

16k

1024

1280

32

T89C51RC2

32k

1024

1280

32

Timer 0

INT

RAM

256x8

WR

RD

EA

PSEN

ALE/

XTAL2

XTAL1

EUART

CPU

Timer 1

Ctrl

(2)

C51

CORE

(2) (2)

Port 0 Port 1 Port 2 Port 3

Parallel I/O Ports & Ext. Bus

XRAM

1Kx8

IB-bus

PCA

PROG

Watch

Dog

(2)

(1)

(1): Alternate function of Port 1

(2): Alternate function of Port 3

(1)

Timer2

(1)

Port I2

Flash

32Kx8 or

16Kx8

Key

Board

ROM

2Kx8

Boot

+

BRG

SPI

(1) (1) (1) (1)

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