UPB8243 Datasheet (NEC) - INPUT/OUTPUT EXPANDER

UPB8243, INPUT/OUTPUT EXPANDER

NEe Microcomputers, Inc.

INPUT/OUTPUT EXPANDER FOR fLP 08048/8748/8035 NEe f'PD8243 DEseR IPTION The IlPD8243 input/output expander is directly compatible with the IlPD8048 family of single-chip microcomputers.

Using NMOS technology the IlPD8243 provides high drive capabilities while requiring only a single +5V supply voltage.

The IlPD8243 interfaces to the IlPD8048 family through a 4-bit I/O port and offers four 4-bit bi-directional static I/O ports.

The ease of expansion allows for multipl

UPB8243 Features

* Four 4-8it I/O Ports

* Fu.lly Compatible with IlPD8048 Microcomputer Family

* High Output Drive

* NMOS Technology

* Single +5V Supply

* Direct Extension of Resident IlPD8048 I/O Ports

* Logical AND and OR Directly to Ports

* Compa