CD74ACT109EG4

Overview

The CD74ACT109EG4 is a dual J-K positive-edge-triggered flip-flop manufactured by Texas Instruments. It contains two independent flip-flops within a single package, featuring active-low preset and clear inputs for direct control of the output states. The device operates with a supply voltage range typical for ACT logic families and supports standard digital signal processing applications requiring reliable edge-triggered data storage.

Feature Summary

• Contains two independent J-K flip-flops with positive-edge triggering
• Features active-low preset and clear inputs for immediate state control
• Configurable logic clock input for flexible timing integration

Applications

• Digital data storage circuits
• Shift register implementations
• Frequency division counters

Procurement Notes

Verify the specific ordering suffix EG4 to confirm RoHS compliance and lead-free status as per manufacturer specifications. Ensure the package type matches the required PCB footprint. Cross-reference the full part number against the latest datasheet to confirm availability status, as distribution channels may list discontinued or obsolete variants differently.

Selection Notes

Select this component when dual independent J-K flip-flops are required in a compact package. Consider the ACT logic family characteristics regarding speed and power consumption relative to system requirements. Verify that the active-low control inputs align with the system's logic levels and timing constraints before finalizing the design.

Part Context

This part belongs to the Texas Instruments 74ACT series of high-speed CMOS logic devices. The CD74ACT109 specifically provides dual J-K functionality, distinguishing it from single flip-flop or D-type variants within the same logical family. It is designed for applications requiring precise edge-triggered operation with dedicated set and reset capabilities.

Replacement Considerations

The CD74ACT109E is listed as a recommended substitute by distributors. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part meets the same environmental and packaging requirements as the original EG4 variant.