74HC597PW,112

Overview

The Nexperia 74HC597PW,112 is an 8-bit shift register with input flip-flops housed in a TSSOP16 package (SOT403-1). It comprises an 8-bit storage register feeding a parallel-in, serial-out shift register. Both registers utilize positive edge-triggered clocks. The device supports a supply voltage range of 2.0 V to 6.0 V and operates within temperatures from -40 °C to +125 °C. Inputs feature clamp diodes for interfacing with voltages exceeding VCC.

Feature Summary

• Features separate positive edge-triggered clocks for the storage and shift registers.
• Includes direct overriding load and clear inputs for the shift register.
• Provides high noise immunity and low power CMOS dissipation.
• Inputs incorporate clamp diodes to allow current limiting resistors for over-voltage interfacing.

Applications

• Parallel-to-serial data conversion
• Serial-to-parallel data expansion
• I/O port expansion in digital systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's latest documentation to confirm package type and temperature grade. Confirm RoHS compliance status and REACH requirements prior to integration. Ensure design margins align with the specified absolute maximum ratings to prevent permanent damage during operation or handling.

Selection Notes

Select this component when a dedicated 8-bit storage register with independent clocking is required alongside a shift register function. The HC logic family offers wide voltage compatibility. Verify that the TSSOP16 footprint matches the PCB layout constraints and thermal management requirements for the intended operating environment.

Part Context

This part belongs to the 74HC series of high-speed CMOS logic devices manufactured by Nexperia. The 74HC597 specifically addresses applications requiring simultaneous parallel storage and serial shifting capabilities. It is distinct from the 74HCT variant, which utilizes TTL-compatible input levels rather than standard CMOS levels.

Replacement Considerations

The 74HC597D serves as a pin-compatible alternative utilizing the SO16 package instead of TSSOP16. Cross-referencing with other manufacturers requires verifying identical logic functionality, pinout configuration, and electrical characteristics such as supply voltage ranges and propagation delays.