74HC597DB,118

Overview

The Nexperia 74HC597DB,118 is an 8-bit shift register with input flip-flops housed in a 16-lead SSOP package. It comprises an 8-bit storage register feeding a parallel-in, serial-out shift register. Both registers utilize positive edge-triggered clocks. The device operates on a supply voltage range of 2.0 V to 6.0 V and supports operating temperatures from -40 °C to +125 °C. It features high noise immunity and CMOS low power dissipation.

Feature Summary

• Integrates an 8-bit storage register and a parallel-in, serial-out shift register with independent clocking.
• Includes direct load and clear inputs for the shift register to override standard shifting operations.
• Inputs feature clamp diodes allowing interface to voltages exceeding VCC using current limiting resistors.

Applications

• Parallel-to-serial data conversion in digital communication systems
• Expansion of I/O ports in microcontroller-based embedded designs
• Display driver circuits requiring serial data input and parallel output

Procurement Notes

Verify the specific suffix '118' against official Nexperia documentation to confirm the exact tape-and-reel packaging quantity and handling specifications. Ensure the SSOP-16 footprint matches the target PCB design constraints. Confirm RoHS compliance status through the latest datasheet revision notes prior to final procurement authorization.

Selection Notes

Select this component when an 8-bit shift register with input latching is required within the 2V to 6V logic family. The HC series offers CMOS input levels suitable for general-purpose digital interfacing. Consider the HCT variant if TTL-level input compatibility is necessary instead of pure CMOS thresholds.

Part Context

This part belongs to the 74HC logic family, representing High-speed CMOS technology. It serves as a fundamental building block for Boolean algebra applications in digital circuits. The device facilitates PCB miniaturization by consolidating multiple logic functions into a single small-footprint package compared to discrete gate implementations.

Replacement Considerations

Direct substitutes include other manufacturers' 74HC597 variants in SOIC or SSOP packages. Verify pinout compatibility and electrical characteristics such as propagation delay and output drive current before substitution.