74ACT74SJX

Flip Flops Overview

The Fairchild Semiconductor 74ACT74SJX is a dual D-type positive edge-triggered flip-flop featuring asynchronous Set and Clear inputs with complementary outputs. It belongs to the 74ACT logic series, providing TTL-compatible inputs for system integration. The device operates within a supply voltage range of 4.5V to 5.5V. Key electrical parameters include a propagation delay of 11ns at 5V with 50pF load, and output drive capabilities sourcing and sinking 24mA. It is housed in a 14-SOP package.

Flip Flops Feature Summary

• Dual D-type flip-flops with positive edge triggering
• Asynchronous Set and Clear control inputs
• Complementary Q and Q output states
• TTL-compatible input logic levels

Flip Flops Applications

• Parallel data storage registers
• Shift register construction
• Frequency division circuits
• Digital state machine sequencing

Flip Flops Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability from multiple manufacturers under similar part numbers. Confirm package marking consistency with official datasheet specifications. Ensure environmental compliance documentation matches project requirements. Validate that the specific suffix corresponds to the requested SOP-14 configuration before finalizing procurement orders.

Flip Flops Selection Notes

Select this component when dual independent D-type storage elements are required within a single package footprint. The ACT series offers a balance of speed and power consumption suitable for general digital logic applications. Consider the asynchronous control features for immediate state management without clock dependency. Evaluate the 24mA output drive strength against downstream load requirements.

Flip Flops Part Context

This component is part of the standard 74ACT family of high-speed CMOS logic devices. It serves as a fundamental building block for sequential logic circuits. The dual configuration allows for efficient space utilization on printed circuit boards compared to using two separate single flip-flop packages. It complements other members of the 74ACT series such as latches and counters.

Flip Flops Replacement Considerations

Direct substitutes include MC74ACT74DR2G from onsemi and SN74ACT74DR from Texas Instruments. These alternatives maintain pinout compatibility and functional equivalence. Verify package dimensions and lead finish specifications to ensure mechanical fit during replacement.