HD74HC190 Datasheet, PDF(6/13 Page) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Single Clock Line)

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HD74HC190 Datasheet, PDF (6/13 Pages) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Single Clock Line)

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HD74HC190/HD74HC191

HD74HC191

Clock

Down/Up

Input A

Enable G

Input B

Input C

Input D

Load

CK P Q

CK A

INCL Q

CK P Q

CK B

INCL Q

CK P Q

CK C

INCL Q

CK P Q

CK D

INCL Q

Ripple

Clock

Max/Min

Output

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