AT89C1051U 查看數據表（PDF） - Atmel Corporation

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AT89C1051U

8-Bit Microcontroller with 1K Byte Flash

Atmel Corporation 

Block Diagram

VCC

GND

RAM ADDR.

REGISTER

RAM

FLASH

RST

B

REGISTER

ACC

STACK

POINTER

PROGRAM

ADDRESS

REGISTER

TMP2

TMP1

BUFFER

ALU

PSW

INTERRUPT, SERIAL PORT,

AND TIMER BLOCKS

TIMING

AND

CONTROL

INSTRUCTION

REGISTER

ANALOG

COMPARATOR

PORT1

LATCH

PORT3

LATCH

OSC

PORT1 DRIVERS

PORT3 DRIVERS

PC

INCREMENTER

PROGRAM

COUNTER

DPTR

P1.0 - P1.7

P3.0 - P3.5

P3.7

2

AT89C1051U

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