74HC74D,652

Overview

The 74HC74D,652 is a dual D-type flip-flop integrated circuit manufactured by Nexperia USA Inc. It belongs to the 74HC logic series and features positive-edge triggering with set and reset functions. The device operates within a supply voltage range of 2V to 6V and supports a maximum clock frequency of 82 MHz. Key electrical parameters include a propagation delay of 37ns at 6V with 50pF load, output currents of 5.2mA for both high and low states, and a static current of 40 µA. It is housed in a 14-SOIC package (3.90mm width) and rated for operation between -40°C and 125°C.

Feature Summary

• Dual D-type flip-flops with positive-edge triggering
• Independent set and reset control inputs
• Complementary outputs available per element

Applications

• Parallel-to-serial data conversion circuits
• Shift register construction
• General-purpose storage elements in digital logic systems

Procurement Notes

Verify component authenticity through official Nexperia channels or authorized distributors. Confirm RoHS compliance status and check for specific manufacturing date codes if required for legacy system maintenance. Ensure the 14-SOIC package dimensions match your PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when dual independent D-type storage with asynchronous control is required. It is suitable for applications needing wide voltage operation from 2V to 6V. Consider the 37ns propagation delay and 82MHz clock limit for timing constraints. The SOIC package is appropriate for surface-mount assembly processes.

Part Context

This part is part of the standard 74HC family, widely used in general-purpose digital electronics. It provides a cost-effective solution for basic sequential logic operations. The 74HC74 variant specifically offers two isolated flip-flops, making it efficient for designs requiring multiple independent data storage points without additional chip space.

Replacement Considerations

Compatible substitutes include other manufacturers' 74HC74 devices in 14-SOIC packages, such as SN74HC74N or equivalent logic families with identical pinouts and electrical characteristics.