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CD74HCT191 - Synchronous Up/Down Counters

This page provides the datasheet information for the CD74HCT191, a member of the CD74HC190 Synchronous Up/Down Counters family.

Datasheet Summary

Description

The CD54/74HC190 are asynchronously presettable BCD decade counters, whereas the CD54/74HC191 and CD54/74HCT191 are asynchronously presettable binary counters.

D) is accomplished by a low asynchronous parallel

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Datasheet preview – CD74HCT191

Datasheet Details

Part number CD74HCT191
Manufacturer Texas Instruments
File Size 1.29 MB
Description Synchronous Up/Down Counters
Datasheet download datasheet CD74HCT191 Datasheet
Additional preview pages of the CD74HCT191 datasheet.

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Full PDF Text Transcription

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CD54HC190, CD74HC190 CD54HC191, CD74HC191, CD54HCT191, CD74HCT191 SYNCHRONOUS UP/DOWN COUNTERS WITH DOWN/UP MODE CONTROL SCHS275E − MARCH 2002 − REVISED OCTOBER 2003 D 2-V to 6-V VCC Operation (’HC190, 191) D 4.5-V to 5.5-V VCC Operation (’HCT191) D Wide Operating Temperature Range of −55°C to 125°C D Synchronous Counting and Asynchronous Loading D Two Outputs for n-Bit Cascading D Look-Ahead Carry for High-Speed Counting D Balanced Propagation Delays and Transition Times D Standard Outputs Drive Up To 15 LS-TTL Loads D Significant Power Reduction Compared to LS-TTL Logic ICs CD54HC190, 191; CD54HCT191 . . . F PACKAGE CD74HC190 . . . E, NS, OR PW PACKAGE CD74HC191, CD74HCT191 . . .
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