7490 - Decade and Binary Counter

Product Overview

National Semiconductor

Datasheet Details

Part number	7490
Manufacturer	National Semiconductor
File Size	137.24 KB
Description	Decade and Binary Counter
Datasheet	7490 Datasheet
Additional preview pages of the 7490 datasheet.

Product details

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

Features

Y Typical power dissipation 90A 145 mW 93A 130 mW Y Count frequency 42 MHz Connection Diagrams Dual-In-Line Package TL F 6533.
1 Order Number DM5490J DM5490W or DM7490AN See NS Package Number J14A N14A or W14B Dual-In-Line Package Order Number DM7493AN See NS Package Number N14A TL F 6533.
2 C1995 National Semiconductor Corporation TL F 6533 RRD-B30M105 Printed in U S A Absolute Maximum Ratings (Note) If Military Aerospace specified devices are required please contact.

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Other Datasheets by National Semiconductor

7492 - Divide by Twelve Counter

Published: Aug 24, 2019 |