CD54HCT174F

Overview

The CD54HCT174F is a high-speed CMOS logic device manufactured by Texas Instruments, classified as a hex D-type flip-flop with reset. It operates within a military-grade temperature range of -55°C to 125°C and utilizes a 14-pin ceramic dual in-line package (CDIP). The component belongs to the HCT technology family, ensuring compatibility with standard TTL inputs while maintaining CMOS low power consumption characteristics.

Feature Summary

• Hex configuration providing six independent D-type flip-flops for parallel data storage
• Master reset functionality allows synchronous clearing of all flip-flop outputs
• Military-grade reliability rated for extreme environmental conditions from -55°C to 125°C
• High-speed CMOS construction ensures fast switching speeds with low power dissipation

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations in digital systems
• State machine control logic in industrial equipment
• Memory buffer stages in military communication hardware

Procurement Notes

Verify that the specific part number matches the military grade specification (CD54 prefix) rather than commercial variants. Confirm the package type is ceramic DIP (CDIP) if hermetic sealing is required for the application environment. Ensure the supplier provides traceability documentation consistent with defense or aerospace procurement standards.

Selection Notes

Select this component when hex D-type storage with a common reset is required in harsh environments. The HCT input structure simplifies interfacing with legacy TTL logic families without additional level shifting. Consider the ceramic package for superior thermal stability and radiation hardness compared to plastic alternatives in critical deployments.

Part Context

This device is part of the broader CD54HCT series of high-speed CMOS logic components designed for robust performance. It shares functional similarities with other hex flip-flops but is distinguished by its specific military temperature rating and ceramic packaging options available within the Texas Instruments portfolio.

Replacement Considerations

Publicly confirmed substitutes include CD54HC174F and CD54HCT174F3A. Verify pinout compatibility and electrical specifications before substitution.