CDP1851 Datasheet - Intersil Corporation

CDP1851 CMOS Programmable I/O Interface

THE CDP1851 and CDP1851C are CMOS programmable twoport I/Os designed for use as general-purpose I/O devices. They are directly compatible with CDP1800-series microprocessors functioning at maximum clock frequency. Each port can be programmed in either byte-I/O or bit-programmable modes for interfaci.

CDP1851 Features

* 20 Programmable I/O Lines

* Programmable for Operation in Four Modes: - Input - Output - Bidirectional - Bit-programmable

* Operates in Either I/O or Memory Space Ordering Information PACKAGE TEMP. RANGE PDIP Burn-In SBDIP Burn-In 5V 10V PKG. NO. -40oC to +85oC CDP1851CE

CDP1851_IntersilCorporation.pdf