S87L51FB-8N40 Ver la hoja de datos (PDF) - Philips Electronics

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S87L51FB-8N40

CMOS single-chip 3.0V 8-bit microcontrollers

Philips Electronics 

Philips Semiconductors

CMOS single-chip 3.0V 8-bit microcontrollers

Product specification

87L51FA/87L51FB

BLOCK DIAGRAM

VCC

VSS

RAM ADDR

REGISTER

RAM

P0.0–P0.7

PORT 0

DRIVERS

PORT 0

LATCH

P2.0–P2.7

PORT 2

DRIVERS

PORT 2

LATCH

ROM/EPROM

B

REGISTER

ACC

TMP2

TMP1

STACK

POINTER

ALU

PSW

SFRs

TIMERS

P.C.A

PSEN

ALE/PROG

EA/VPP

RST

TIMING

AND

CONTROL

PD

OSCILLATOR

XTAL1

XTAL2

PORT 1

LATCH

PORT 1

DRIVERS

P1.0–P1.7

PORT 3

LATCH

PORT 3

DRIVERS

P3.0–P3.7

PROGRAM

ADDRESS

REGISTER

BUFFER

PC

INCRE-

MENTER

PROGRAM

COUNTER

DPTR

SU00022

1996 Aug 16

3-152

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