AT89S4D12-12JC Ver la hoja de datos (PDF) - Atmel Corporation

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AT89S4D12-12JC

8-Bit Microcontroller with 132K Bytes Flash Data Memory

Atmel Corporation 

Block Diagram

VCC

GND

128K

Flash

RAM ADDR.

REGISTER

RAM

4K

FLASH

B

REGISTER

ACC

TMP2

TMP1

ALU

RST

PSW

TIMING

AND

CONTROL

INSTRUCTION

REGISTER

12MHz

OSC

STACK

POINTER

PROGRAM

ADDRESS

REGISTER

BUFFER

PC

INCREMENTER

PROGRAM

COUNTER

PORT 1

LATCH

SPI

PORT

DPTR

PROGRAM

LOGIC

PORT 1 DRIVERS

P1.0 - P1.4

4-282

AT89S4D12

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