CD54HC174F3A

Overview

The CD54HC174F3A is a high-speed CMOS logic hex D-type flip-flop with reset, manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -55°C to 125°C. The device features six independent D-type flip-flops, each capable of storing one bit of binary data. Key electrical parameters include a maximum propagation delay of 34ns at nominal voltage and a maximum output current of 5.2mA for both sourcing and sinking. The component is housed in a 16-pin ceramic dual in-line package (CDIP-16) suitable for military and industrial applications.

Feature Summary

• Contains six independent D-type flip-flops for parallel data storage
• Includes a master reset input to clear all outputs simultaneously
• High-speed CMOS technology ensures low power consumption
• Military-grade reliability with extended temperature range support

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• Digital state storage in military avionics systems
• Industrial control system memory elements

Procurement Notes

Verify the specific suffix F3A corresponds to the required ceramic DIP-16 packaging and military screening level. Confirm RoHS compliance status as historical military parts may not meet modern environmental standards. Ensure the supplier provides traceability documentation for the 38535Q/M or equivalent military qualification if required for your application.

Selection Notes

Select this component when six synchronized D-type flip-flops are needed in a single package. The HC series offers faster switching speeds compared to standard 74HC devices. Consider the HCT variant if TTL-compatible input voltages are required instead of pure CMOS levels. Verify that the 16-pin ceramic package fits the available board space and thermal constraints.

Part Context

This part belongs to the SN54/CD54 family of high-speed CMOS logic devices designed for military and aerospace applications. It is functionally similar to the SN54HC174 but packaged in ceramic for enhanced durability. The device complements other logic families like SN54LS174W, offering lower power consumption while maintaining compatible functionality for system upgrades.

Replacement Considerations

Direct substitutes include SN54HC174 and CD54HC174. For TTL-compatible inputs, consider CD54HCT174F3A. Verify pinout compatibility before swapping with SNJ54LS174W variants.