P87C51RAJN 查看數據表（PDF） - Philips Electronics

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P87C51RAJN

80C51 8-bit microcontroller family 8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V), low power, high speed (33 MHz)

Philips Electronics 

Philips Semiconductors

80C51 8-bit microcontroller family

8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),

low power, high speed (33 MHz)

Product specification

8XC52/54/58/80C32

8XC51FA/FB/FC/80C51FA

8XC51RA+/RB+/RC+/RD+/80C51RA+

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

8

PROGRAM

ADDRESS

REGISTER

PSEN

ALE/PROG

EAVPP

RST

TIMING

AND

CONTROL

PD

OSCILLATOR

XTAL1

XTAL2

ALU

PSW

PORT 1

LATCH

PORT 1

DRIVERS

P1.0–P1.7

SFRs

TIMERS

P.C.A. (FA & RA+ only)

BUFFER

PC

INCRE-

MENTER

8

16

PROGRAM

COUNTER

PORT 3

LATCH

DPTR’S

MULTIPLE

PORT 3

DRIVERS

P3.0–P3.7

SU00831B

1999 Apr 01

3

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