CD74HC597 Datasheet

Counter Shift Registers


The CD74HC597 are high-speed silicon gate CMOS devices that are pin-compatible with the LSTTL 597 devices. Each device consists of an 8-flip-flop input registerand an 8-bit parallel-in/serial-in, serial-out shift register. Each register is controlled by its own clock. A “low” on the parallel load input (PL) shifts parallel stored data asynchronously into the shift register. A “low” master input (MR) clears the shift register. Serial input data can also be synchronously shifted through the shift register when PL is high. CD74HC597 Features • Buffered Inputs• Asynchronous Parallel Load• Fanout (Over Temperature Range)• Wide Operating Temperature Range . . . -55℃ to 125℃• Balanced Propagation Delay and Transition Times• Signicant Power Reduction Compared to LSTTL Logic ICs


[{"Name":"Number of Input Line","Value":"9"},{"Name":"Propagation Delay Time","Value":"240 ns, 48 ns, 41 ns"},{"Name":"Maximum Operating Temperature","Value":"+ 125 C"},{"Name":"Minimum Operating Temperature","Value":"- 55 C"},{"Name":"Operating Supply Voltage","Value":"2.5 V, 3.3 V, 5 V"},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information


Cornell Dubilier - Cornell Dubilier is the source for capacitors that transform your applications to success stories. It excels with aluminum electrolytic, mica, motor run and AC and DC plastic film capacitors. Cornell Dubilier only makes capacitors and has been doing it for almost 100 years. The world leaders in welders, UPS systems, motors, drives, avionics, power and military electronics and medical lasers are prominently among its more than 33,000 customers.

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