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Am8279-5 - Programmable Keyboard/Display Interface

This page provides the datasheet information for the Am8279-5, a member of the Am8279 Programmable Keyboard/Display Interface family.

Datasheet Summary

Description

The Am8279 is a general purpose programmable keyboard and display I/O interface device deSigned for use with Am8080Al8085A microprocessors.

The keyboard portion can provide a scanned interface to a 64 contact key matrix which can be expanded to 128.

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Datasheet preview – Am8279-5

Datasheet Details

Part number Am8279-5
Manufacturer AMD
File Size 137.00 KB
Description Programmable Keyboard/Display Interface
Datasheet download datasheet Am8279-5 Datasheet
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Full PDF Text Transcription

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Am 8279/Am8279-5 Programmable Keyboard/Display Interface DISTINCTIVE CHARACTERISTICS • Am8085A Compatible • Simultaneous keyboard display operations • Scanned keyboard mode • Scanned sensor mode • Strobed input entry mode • 8 character keyboard FIFO ; 2 key lockout or N key rollover vv'ith contact dabounce • Dual 8 or 16 numerical display • Single 16 character display • Right or left entry 16-byte display RAM • Mode programmable from CPU • Programmable scan timing • Interrupt output on key entry GENERAL DESCRIPTION The Am8279 is a general purpose programmable keyboard and display I/O interface device deSigned for use with Am8080Al8085A microprocessors. The keyboard portion can provide a scanned interface to a 64 contact key matrix which can be expanded to 128.
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