The IN74HC165A isidenticalinpinoutto the LS/ALS165. The device inputs are compatiblewithstandard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.

This device is an 8-bitshiftregister withcomplementaryoutputs from the last stage. Data may beloadedintothe register either inparallel orin serial form. When the SerialShift/ParallelLoad inputislow, the datais loaded asynchronouslyinparallel.When the SerialShift/Parallel Load input ishigh, the dataisloaded seriallyon the rising edge of either Clock or Clock Inhibit(see the Function Table).

The 2-inputNORclock maybe used either bycombining two independentclock sources or bydesignating one of the clock inputs toact as a clock inhibit.

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range:2.0 to6.0 V

• Low InputCurrent:1.0 µA

• High Noise Immunity Characteristic of CMOS Devices