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DM74AS646 - Octal Bus Transceiver and Register

Datasheet Summary

Description

This device incorporates an octal bus transceiver and an octal D-type register configured to enable multiplexed transmission of data from bus to bus or internal register to bus.

Features

  • totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance third state and increased high-logic-level drive provide this device with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. It is particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The registers in th.

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Datasheet Details

Part number DM74AS646
Manufacturer Fairchild Semiconductor
File Size 82.65 KB
Description Octal Bus Transceiver and Register
Datasheet download datasheet DM74AS646 Datasheet
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Full PDF Text Transcription

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DM74AS646 • DM74AS648 Octal Bus Transceiver and Register October 1986 Revised March 2000 DM74AS646 • DM74AS648 Octal Bus Transceiver and Register General Description This device incorporates an octal bus transceiver and an octal D-type register configured to enable multiplexed transmission of data from bus to bus or internal register to bus. This bus transceiver features totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively low-impedance loads. The high-impedance third state and increased high-logic-level drive provide this device with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components.
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