74LS161 Datasheet - System Logic Semiconductor

74LS161, Synchronous 4-Bit Counters

SL74LS161 Synchronous 4 Bit Counters; Binary, Direct Reset This synchronous, presettable counter .

Applications

* without additional gating. Instrumental in accomplishiing this function are two counter-enable inputs and a ripple carry output. Both countenable inputs (ENABLE P and ENABLE T) must be high to count, and ENABLE T is fed forward to enable the ripple carry output. The ripple carry output thus enabled

74LS161_SystemLogicSemiconductor.pdf