T83C5101_03 查看數據表（PDF） - Atmel Corporation

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T83C5101_03

8-bit Low Pin Count Microcontrollers

Atmel Corporation 

Block Diagram

XTAL1

XTAL2

PROG (3)

TEST (3)

VPP

(2) (2)

EUART

RAM

256x8

ROM

/EPROM

16Kx8

CPU

C51

CORE

IB-bus

XRAM

256x8

Timer 0 INT

Timer 1 Ctrl

(2) (2) (2) (2)

Parallel I/O Ports

Port 1 Port 4 Port 3

(1) (1)

Timer2

(1): Alternate function of Port 1

(2): Alternate function of Port 3

(3): Multiplexed function of Port 4.

2 T8xC5101/02

4233G–8051–03/03

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