CMP82C55AZ Datasheet (Intersil Corporation) - CMOS Programmable Peripheral Interface

CMP82C55AZ, CMOS Programmable Peripheral Interface

SYMBOL VCC GND D0-D7 RESET CS RD WR A0-A1 I/O I I I I I TYPE DESCRIPTION VCC: The +5V power supply pin.

A 0.1µF capacitor between VCC and GND is recommended for decoupling.

GROUND DATA BUS: The Data Bus lines are bidirectional three-state pins connected to the system data bus.

RESET: A high on this

CMP82C55AZ Features

* as the X82C55 with the exception of no bus hold devices on the port pins. It is a general purpose programmable I/O device which may be used with many different microprocessors. There are 24 I/O pins which may be individually programmed in two groups of 12 and used in three major modes of operation.