SN74LS74ADE4

Flip Flops Overview

The SN74LS74ADE4 is a dual D-type positive-edge-triggered flip-flop from the Texas Instruments SN74LS series. It integrates two independent flip-flops, each featuring dedicated preset and clear inputs for direct state control. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 40 ns at 5 V with 15 pF load, a high-level output current of -400 µA, and a low-level output current of 8 mA. It supports TTL input and output logic levels.

Flip Flops Feature Summary

• Dual independent D-type flip-flops with positive-edge triggering
• Direct asynchronous preset and clear inputs for immediate state initialization
• Complementary outputs providing both true and inverted logic states

Flip Flops Applications

• Data storage and register circuits in digital systems
• Frequency division and counter stages
• Synchronization of data signals across clock domains

Flip Flops Procurement Notes

Verify the package type matches the design requirements, as this part number typically denotes a surface-mount SOIC-14 configuration. Confirm RoHS compliance status through the manufacturer's official documentation or authorized distributor datasheets before finalizing procurement. Ensure the specific suffix aligns with the required tape-and-reel or tube packaging format for the manufacturing process.

Flip Flops Selection Notes

Select this component when designing circuits requiring dual edge-triggered storage elements within the standard 74LS logic family. It is suitable for applications needing direct preset and clear functionality without additional gating logic. Consider the 40 ns propagation delay and 8 mA low-level drive capability when determining compatibility with downstream loads and system timing constraints.

Flip Flops Part Context

This component belongs to the widely adopted SN74LS (Low-power Schottky) logic family, known for balanced speed and power consumption. The SN74LS74 variant specifically provides dual flip-flop functionality, serving as a fundamental building block for sequential logic designs. It maintains pinout compatibility with other industry-standard 74LS devices, facilitating integration into existing digital architectures.

Flip Flops Replacement Considerations

SN74LS74ADRG4 is an equivalent lead-free variant from Texas Instruments offering identical functional specifications and pinout compatibility.