SN74HCT74N

Flip Flops Overview

The SN74HCT74N is a dual D-type positive-edge-triggered flip-flop manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible inputs with CMOS outputs. The device includes independent preset and clear inputs for each flip-flop. It is housed in a 14-pin PDIP package designed for through-hole mounting. Key electrical specifications include a maximum propagation delay of 28 ns, output currents of ±4 mA, and a static current of 4 µA. The component supports a wide operating temperature range from -40°C to +85°C.

Flip Flops Feature Summary

• Dual D-type edge-triggered flip-flops with independent preset and clear controls
• TTL-compatible input logic levels ensuring direct interface with TTL systems
• CMOS output structure providing high noise immunity and low power consumption

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose digital storage elements

Flip Flops Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel versus tube packaging configuration. Ensure the requested variant matches the required lead time and manufacturing lot date codes. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the manufacturer part number with distributor catalogs to ensure availability and correct identification before placing orders.

Flip Flops Selection Notes

Select this component when a dual D-type flip-flop with TTL-compatible inputs is required for designs operating at 5 V. The HCT series ensures compatibility with legacy TTL logic families while offering CMOS performance benefits. Consider the PDIP-14 package for prototyping or applications requiring through-hole mounting techniques. Verify that the 28 ns propagation delay meets the timing requirements of the target clock frequency.

Flip Flops Part Context

This device belongs to the Texas Instruments SN74HCT74 family of logic integrated circuits. It is part of the broader 74HCT logic series, which bridges the gap between standard TTL and CMOS technologies. The SN74HCT74N specifically denotes the through-hole PDIP variant, distinguishing it from surface-mount alternatives like the NSR suffix versions within the same functional family.

Flip Flops Replacement Considerations

SN74HCT74NSR

Flip Flops FAQ

What is the trigger type of the SN74HCT74N?

The SN74HCT74N utilizes a positive-edge-triggered mechanism for data capture.

Does the SN74HCT74N have asynchronous control inputs?

Yes, each flip-flop includes independent preset and clear inputs that operate asynchronously.