AT89C1051-24SI データシートの表示（PDF） - Atmel Corporation

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AT89C1051-24SI

8-Bit Microcontroller with 1K Byte Flash

Atmel Corporation 

Block Diagram

VCC

GND

RAM ADDR.

REGISTER

RAM

FLASH

B

REGISTER

ACC

STACK

POINTER

PROGRAM

ADDRESS

REGISTER

RST

TMP2

TMP1

ALU

PSW

INTERRUPT,

AND TIMER BLOCKS

TIMING

AND

CONTROL

INSTRUCTION

REGISTER

OSC

ANALOG

COMPARATOR

+

-

PORT 1

LATCH

PORT 1 DRIVERS

PORT 3

LATCH

PORT 3 DRIVERS

BUFFER

PC

INCREMENTER

PROGRAM

COUNTER

DPTR

P1.0 - P1.7

P3.0 - P3.5

P3.7

4-4

AT89C1051

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