P80C550 查看數據表（PDF） - Philips Electronics

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产品描述 (功能)

比赛名单

P80C550

80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Philips Electronics 

Philips Semiconductors

80C51 8-bit microcontroller family

4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer

Product specification

80C550/83C550/87C550

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

PCON

TL1

SCON TMOD TCON

TH0 TL0 TH1

SBUF IE

IP

INTERRUPT, SERIAL

PORT AND TIMER BLOCKS

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

SU00005

1998 May 01

3

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