DS7640 - Quad NOR Unified Bus Receiver

National Semiconductor

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Datasheet Details

Part number	DS7640
Manufacturer	National Semiconductor
File Size	103.65 KB
Description	Quad NOR Unified Bus Receiver
Datasheet	DS7640_NationalSemiconductor.pdf

DS7640 Product details

Description

The DS7640 and DS8640 are quad 2-input receivers designed for use in bus organized data transmission systems interconnected by terminated 120X impedance lines The external termination is intended to be 180X resistor from the bus to the a 5V logic supply together with a 390X resistor from the bus to ground The design employs a built-in input threshold providing substantial noise immunity Low input current allows up to 27 driver receiver pairs to utilize a common bus

Features

Y Y Y Y Y Y Low input current with normal VCC or VCC e 0V (30 mA typ) High noise immunity (1 1V typ) Temperature-insensitive input thresholds track bus logic levels TTL compatible output Matched optimized noise immunity for ‘‘1’’ and ‘‘0’’ levels High speed (19 ns typ) Connection Diagram Dual-In-Line Package TL F 5805.
1 Top View Order Number DS7640J or DS8640N See NS Package Number J14A or N14A Typical.

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Published: Mar 30, 2005 |