UM82C55A Datasheet - UMC

UM82C55A CMOS PROGRMMABLE PERIPHERAL INTERFACE

The UM82C55A is a high performance CMOS version of the industry standard 8255A and is manufactured using a selfaligned silicon gate CMOS process. 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 pro.

UM82C55A Features

* Pin compatible with NMOS 8255A

* 24 programmable I/O pins

* Fully TTL compatible

* Bus-hold circuitry on all I/O ports eliminates pull-up resistors

* High speed, no "wait state" operation with 8M Hz 80C86

* Direct bit set/reset capabi lity

UM82C55A Datasheet (718.23 KB)