P87CL881H View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

P87CL881H

Low-voltage microcontroller with 63-kbyte OTP program memory and 2-kbyte RAM / LQFP44 Package

Philips Electronics 

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EA

XTAL1

XTAL2

CLK (2)

PSEN

ALE

WR (4)

RD (4)

AD0 to AD7 (1)

A8 to A15 (3)

T0 (4)

INT1 (4)

T1 (4) INT0 (4) INT2 to INT8 (2)

7

VDD VDDP

VSS VSSP VPP(5)

TWO 16-BIT

TIMER/

EVENT

COUNTERS

(T0, T1)

CPU

ACO

80C51

core

excluding

ROM/RAM

PROGRAM

MEMORY

ROM

DATA

MEMORY

RAM

DATA

MEMORY

AUX-RAM

P87CL881H

8-bit

internal bus

PARALLEL

I/O PORTS

SERIAL

UART

PORT

16-BIT

TIMER/EVENT

COUNTER WITH

CAPTURE/

COMPARE/

(T2)

EEPROM

I2C-BUS

INTERFACE

WATCHDOG

TIMER

(T3)

LVD

POR

RXD (4)

P0 P1 P2 P3 TXD (4)

T2EX (2)

T2 (2)

T2COMP (2)

SDA (2) SCL (2) RST EW

PORENABLE

MGL617

(1) Alternative function of Port 0.

(2) Alternative function of Port 1.

(3) Alternative function of Port 2.

(4) Alternative function of Port 3.

(5) Alternative function of pin 6.

Fig.1 Block diagram.

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