IS89C51-40PQ Ver la hoja de datos (PDF) - Integrated Silicon Solution

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componentes Descripción

Fabricante

IS89C51-40PQ

CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 4-Kbytes of FLASH

Integrated Silicon Solution 

IS89C51

Vcc

GND

P2.0-P2.7

P2

DRIVERS

RAM ADDR

REGISTER

ADDRESS

DECODER

& 128

BYTES RAM

P2

LATCH

P0.0-P0.7

P0

DRIVERS

P0

LATCH

ADDRESS

DECODER

&

4K FLASH

3 LOCK BITS

&

32 BYTES

ENCRYPTION

ISSI ®

B

REGISTER

STACK

POINT

PCON

TL1

SCON

TH0

SBUF

TMOD

TL0

IE

TCON

TH1

IP

INTERRUPT BLOCK

SERIAL PORT BLOCK

TIMER BLOCK

ACC

TMP2

TMP1

ALU

PSW

PSEN

ALE/PROG

RST

EA/VPP

TIMING

AND

CONTROL

OSCILLATOR

XTAL1

XTAL2

P3

LATCH

P3

DRIVERS

P1

LATCH

P1

DRIVERS

PROGRAM

ADDRESS

REGISTER

PROGRAM

COUNTER

PC

INCREMENTER

BUFFER

DPTR

P3.0-P3.7

P1.0-P1.7

Figure 4. IS89C51 Block Diagram

4

1-800-379-4774 — Integrated Silicon Solution, Inc.

MC016-1C

11/21/98

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