SN74F161A
Overview
This synchronous, presettable, 4-bit binary counter has internal carry look-ahead circuitry for use in high-speed counting designs. A3 B4 C5 D6 ENP 7 14 QA 13 QB 12 QC 11 QD 10 ENT Synchronous operation is provided by having all GND 8 9 LOAD flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable (ENP, ENT) inputs and internal gating.
