Datasheet4U Logo Datasheet4U.com

CDP1857C - 4-Bit Bus Buffer/Separator

General Description

The CDP1857C is a 4-bit CMOS non-inverting bus separator designed for use in CDP1800-series microprocessor systems.

It can be controlled directly by a 1800-series microprocessor without the use of additional components.

Key Features

  • Provides Easy Connection of I/O to CDP1800-Series Microprocessor Data Bus.
  • Non-Inverting Fully Buffered Data Transfer Ordering Information PART NUMBER CDP1857CE CDP1857CD TEMP. RANGE -40oC to +85oC -40oC to +85oC.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
CDP1857C 4-Bit Bus Buffer/Separator ETC
CDP1857 4-Bit Bus Buffer/Separator ETC
CDP1851 CMOS Programmable I/O Interface GE
CDP1851C CMOS Programmable I/O Interface GE
CDP1852 Byte-Wide Input/Output Port GE

Other Datasheets by Intersil (now Renesas)

Part Number Description
CDP1857CD 4-Bit Bus Buffer/Separator
CDP1857CE 4-Bit Bus Buffer/Separator
CDP1857 4-Bit Bus Buffer/Separator
CDP1851 CMOS Programmable I/O Interface
CDP1851C CMOS Programmable I/O Interface

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
CDP1857C March 1997 4-Bit Bus Buffer/Separator Description The CDP1857C is a 4-bit CMOS non-inverting bus separator designed for use in CDP1800-series microprocessor systems. It can be controlled directly by a 1800-series microprocessor without the use of additional components. The CDP1857 is designed for use as a bus buffer or separator between the 1800-series microprocessor data bus and I/O devices. It provides a chip-select (CS) input signal which, when high (1), enables the bus-separator three-state output drivers. The direction of data flow, when enabled, is controlled by the MRD input signal. In the CDP1857, when MRD = 1, it enables the three-state bus drivers (DB0-DB3) and transfers data from the DATA-IN lines onto the data bus.