HD74HC668 counter equivalent, synchronous up/down decade counter.
an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that .
Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident.
This synchronous presettable decade counter features an internal carry look-ahead for cascading in high-speed counting applications. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincide.
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