CD74HC73E

Overview

The CD74HC73E is a dual negative-edge-triggered J-K flip-flop manufactured by Texas Instruments, belonging to the HC logic family. It features a 14-pin PDIP package for through-hole mounting. The device operates within a supply voltage range of 2V to 6V and supports a wide operating temperature range from -55°C to +125°C. Key electrical characteristics include a maximum propagation delay of 28ns at 6V with 50pF load, static current of 4µA, and output currents of 5.2mA. It includes reset functionality and is RoHS compliant.

Feature Summary

• Dual negative-edge-triggered J-K flip-flops with independent clock and reset inputs
• High-speed CMOS technology ensuring low power consumption and fast switching
• Wide supply voltage operation compatible with standard digital logic systems
• Complementary outputs available for versatile circuit integration

Applications

• Digital state storage and memory elements in control circuits
• Frequency division and counting applications in timing systems
• Data register implementation in microprocessor interfacing
• Sequential logic design in industrial automation controllers

Procurement Notes

Verify the specific ordering suffix matches the required package type and lead time requirements. Confirm that the procurement channel provides valid traceability documentation for the component. Ensure the received parts match the specified HC logic family parameters before integration into production designs.

Selection Notes

Select this component when dual J-K flip-flop functionality is required in through-hole designs. Consider the 2V to 6V operating range for compatibility with various logic levels. Evaluate the 28ns propagation delay against system timing constraints. Verify thermal requirements align with the -55°C to +125°C operational specification.

Part Context

This part belongs to the CD74HC series of high-speed CMOS logic devices from Texas Instruments. It is functionally equivalent to other industry-standard J-K flip-flops but offers specific performance metrics defined by the HC family. The PDIP-14 package facilitates easy prototyping and manual assembly in electronic hardware development.

Replacement Considerations

• CD74HC73M
• CD74HC73MT
• SN74HC73N