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DS1678 - TRI-STATE TTL to MOS Multiplexers/Drivers

This page provides the datasheet information for the DS1678, a member of the DS1648 TRI-STATE TTL to MOS Multiplexers/Drivers family.

Description

The DS1648 DS3648 and DS1678 DS3678 are quad 2-input multiplexers with TRI-STATE outputs designed to drive the large capacitive loads (up to 500 pF) associated with MOS memory systems A PNP input structure is employed to minimize input currents so that driver loading in large memory systems is reduc

Features

  • Y Y Y Y Y Y TRI-STATE outputs interface directly with system-bus Schottky-clamped for better ac performance PNP inputs to minimize input loading TTL compatible High-speed capacitive load drivers Built-in damping resistor (DS1648 DS3648 only) Logic and Connection Diagrams Dual-In-Line Package TL F 7506.
  • 2 Top View TL F 7506.
  • 1 Order Number DS1648J DS3648J DS1678J DS3678J DS3648N or DS3678N See NS Package Number J16A or N16A TRI-STATE is a registered trademark of National S.

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Datasheet preview – DS1678

Datasheet Details

Part number DS1678
Manufacturer National Semiconductor
File Size 148.18 KB
Description TRI-STATE TTL to MOS Multiplexers/Drivers
Datasheet download datasheet DS1678 Datasheet
Additional preview pages of the DS1678 datasheet.

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Full PDF Text Transcription

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DS1648 DS3648 DS1678 DS3678 TRI-STATE TTL to MOS Multiplexers Drivers February 1986 DS1648 DS3648 DS1678 DS3678 TRI-STATE TTL to MOS Multiplexers Drivers General Description The DS1648 DS3648 and DS1678 DS3678 are quad 2-input multiplexers with TRI-STATE outputs designed to drive the large capacitive loads (up to 500 pF) associated with MOS memory systems A PNP input structure is employed to minimize input currents so that driver loading in large memory systems is reduced The circuit employs Schottkyclamped transistors for high speed and TRI-STATE outputs for bus operation The DS1648 DS3648 has a 15X resistor in series with the outputs to dampen transients caused by the fast-switching output The DS1678 DS3678 has a direct low impedance output for use with or without an external resistor
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