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7490

Part Number	7490
Manufacturer	National Semiconductor
Description	Decade and Binary Counter
Published	Aug 24, 2019
Detailed Description	DM5490 DM7490A DM7493A Decade and Binary Counters www.DataSheet4U.com July 1992 DM5490 DM7490A DM7493A Decade and Bin...
Datasheet	7490 PDF File

Overview

DM5490 DM7490A DM7493A Decade and Binary Counters www.
DataSheet4U.
com July 1992 DM5490 DM7490A DM7493A Decade and Binary Counters General Description Each of these monolithic counters contains four masterslave flip-flops and additional gating to provide a divide-bytwo counter and a three-stage binary counter for which the count cycle length is divide-by-five for the 90A and divideby-eight for the 93A All of these counters have a gated zero reset and the 90A also has gated set-to-nine inputs for use in BCD nine’s complement applications To use their maximum count length (decade or four-bit binary) the B input is connected to the QA output The input count pulses are applied to input A and ...

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