74HC74D,653

Overview

The Nexperia 74HC74D,653 is a dual D-type flip-flop integrated circuit belonging to the 74HC series. It features positive-edge triggering with set and reset functions. The device operates within a supply voltage range of 2V to 6V and supports surface-mount installation in a 14-SO package. Key electrical parameters include a maximum 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 40µA. It functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Dual D-type flip-flops with positive-edge clock triggering
• Independent set and reset control inputs
• Complementary push-pull output configuration

Applications

• Parallel data storage circuits
• Shift register construction
• Frequency division logic

Procurement Notes

Verify component authenticity through official Nexperia channels or authorized distributors. Confirm package marking matches the specific suffix code. Ensure handling procedures comply with electrostatic discharge protection standards during assembly. Review the latest datasheet revision for any updates to pinout or electrical characteristics before finalizing design integration.

Selection Notes

Select this component when designing systems requiring dual independent storage elements within a single package. The wide supply voltage range allows compatibility with various logic families. Verify that the required switching speed meets the 37ns propagation delay specification under the target load conditions. Consider thermal management requirements given the extended industrial temperature rating.

Part Context

This part belongs to the standard 74HC logic family, widely used for general-purpose digital applications. The 74HC74 variant specifically provides two isolated D-type flip-flops, offering a compact solution for sequential logic designs compared to using separate single flip-flop packages.

Replacement Considerations

Cross-reference with other manufacturers' 74HC74 equivalents ensuring identical pinouts and electrical specifications. Verify package dimensions match the 14-SOIC form factor. Check for functional parity regarding set/reset timing requirements.