Description
The HD74HC597 consists of an 8-bit storage latch feeding a parallel-in, serial-out 8-bit shift register. Both the storage register and shift register have positive-edge triggered clocks. The shift register also has direct load (from storage) and clear inputs.

Features
•  High Speed Operation: tpd(SCK to QH’) = 14 ns typ (CL= 50 pF)
•  High Output Current: Fanout of 10 LSTTL Loads
•  Wide Operating Voltage: VCC= 2 to 6 V
•  Low Input Current: 1 µA max
•  Low Quiescent Supply Current: ICC(static) = 4 µA max (Ta = 25°C)