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| 74HC191 Datasheet, PDF (6/14 Pages) NXP Semiconductors – Presettable synchronous 4-bit binary up/down counter | |||
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Philips Semiconductors
Presettable synchronous 4-bit binary
up/down counter
Product speciï¬cation
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.
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