74HCT174DB,118

Overview

The 74HCT174DB,118 is a hex D-type flip-flop manufactured by Nexperia USA Inc., belonging to the 74HCT logic family. It features three independent positive-edge-triggered D-type flip-flops with separate clock inputs and a common clear input. The device operates within a supply voltage range of 4.5V to 5.5V and supports surface-mount installation in a 16-SOIC package (0.154 inch width). It functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Contains three independent D-type flip-flops for parallel data storage
• Utilizes positive-edge triggering for precise clock synchronization
• Features a common active-low clear input for immediate state reset

Applications

• Parallel-to-serial data conversion circuits
• Shift register configurations for data expansion
• Digital state memory elements in control systems

Procurement Notes

Verify the specific suffix '118' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 16-SOIC footprint matches the target PCB layout dimensions. Ensure compatibility with standard 5V logic levels provided by the HCT series specifications before finalizing component selection.

Selection Notes

Select this component when designing systems requiring multiple synchronized storage elements within a single integrated circuit. The HCT series ensures direct compatibility with TTL-level inputs, simplifying interface design with legacy or mixed-logic controllers. Consider the thermal performance and package constraints relative to the available board space.

Part Context

This part belongs to the widely adopted 74HCT family, designed to bridge CMOS technology with traditional TTL logic standards. The 74HCT174 variant specifically addresses applications needing compact, multi-bit storage solutions. Its integration into the broader 74-series ecosystem allows for straightforward scalability in complex digital logic designs.

Replacement Considerations

Public confirmed substitute part numbers include MC74HCT174ADTR2G from onsemi and CD74HCT174M96 from Texas Instruments.