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DS3678

Part Number	DS3678
Manufacturer	National Semiconductor
Description	TRI-STATE TTL to MOS Multiplexers/Drivers
Published	Mar 30, 2005
Detailed Description	DS1648 DS3648 DS1678 DS3678 TRI-STATE TTL to MOS Multiplexers Drivers February 1986 DS1648 DS3648 DS1678 DS3678 TRI-ST...
Datasheet	DS3678 PDF File

Overview

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 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 Semiconductor Corp C1995 National Semiconductor Corporation TL F 7506 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note 1) Operating Conditions Supply Voltage (VCC) Temperature (TA) DS1648 DS1678 DS3648 DS3678 Min 45 b 55 If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Logical ‘‘1’’ Input Voltage Logical ‘‘0’’ Input Voltage Storage Temperature Range Maximum Power Dissipation at 25 C Cavity Package Molded Package Lead Temperature (Soldering 10 seconds) 7V 7V b 1 5V b 65 C to a 150 C Max 55 a 125 a 70 Units V C C 0 1433 mW 1362 mW 300 C Derate cavity package 9...

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