74HC191U View Datasheet(PDF) - Philips Electronics

Part Name

Description

MFG CO.

74HC191U

Presettable synchronous 4-bit binary up/down counter

Philips Electronics 

Philips Semiconductors

Presettable synchronous 4-bit binary

up/down counter

Product specification

74HC/HCT191

Fig.5 N-stage ripple counter using ripple clock.

Fig.6 Synchronous n-stage counter using ripple carry/borrow.

December 1990

Fig.7 Synchronous n-stage counter with parallel gated carry/borrow.

6

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