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DS8838 - Quad Unified Bus Transceiver

Datasheet Summary

Description

The DS8838 is a quad high speed driver/receiver designed for use in bus organized data transmission systems interconnected by terminated 120Ω impedance lines.

Features

  • n n n n n n n n n 4 totally separate driver/receiver pairs per package 1V typical receiver input hysteresis Receiver hysteresis independent of receiver output load Guaranteed minimum bus noise immunity of 1.3V, 2V typ. Temperature-insensitive receiver thresholds track bus logic levels 20 µA typical bus terminal current with normal VCC or with VCC = 0V Open collector driver output allows wire-OR connection High speed Series 74 TTL compatible driver and disable inputs and receiver outputs Typical.

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Datasheet Details

Part number DS8838
Manufacturer National Semiconductor
File Size 82.35 KB
Description Quad Unified Bus Transceiver
Datasheet download datasheet DS8838 Datasheet
Additional preview pages of the DS8838 datasheet.

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Full PDF Text Transcription

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DS8838 Quad Unified Bus Receiver May 1999 DS8838 Quad Unified Bus Transceiver General Description The DS8838 is a quad high speed driver/receiver designed for use in bus organized data transmission systems interconnected by terminated 120Ω impedance lines. The external termination is intended to be 180Ω resistor from the bus to the +5V logic supply together with a 390Ω resistor from the bus to ground. The bus can be terminated at one or both ends. Low bus pin current allows up to 27 driver/receiver pairs to utilize a common bus. The bus loading is unchanged when VCC = 0V. The receivers incorporate hysteresis to greatly enhance bus noise immunity. One two-input NOR gate is included to disable all drivers in a package simultaneously.
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