SN74F74D

Flip Flops Overview

The SN74F74D is a dual positive-edge-triggered D flip-flop with preset and clear inputs, manufactured by Texas Instruments. It belongs to the SN74F series of high-speed Schottky logic devices. The component operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical characteristics include a propagation delay of typically 1.5 ns from clock to output and a power dissipation of approximately 20 mW per gate. The device features a 14-pin DIP package.

Flip Flops Feature Summary

• High-speed operation utilizing Schottky diode technology for reduced switching times.
• Dual independent D flip-flops integrated into a single package for space efficiency.
• Asynchronous preset and clear inputs allowing direct control of output states independent of the clock signal.

Flip Flops Applications

• Data storage and register applications in digital systems.
• Frequency division and counting circuits.
• Synchronization of data signals across different clock domains.

Flip Flops Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature rating. Ensure compatibility with existing system voltage levels and load requirements. Confirm that the supplier provides traceable documentation matching the manufacturer's specifications. Check for any regional restrictions or obsolescence notices before finalizing procurement decisions.

Flip Flops Selection Notes

Select this component when high-speed switching is required alongside low power consumption. Consider the 14-pin DIP format for through-hole assembly needs. Evaluate the asynchronous control inputs against synchronous design requirements. Compare performance metrics with other logic families if noise immunity or drive strength is critical.

Flip Flops Part Context

This part is part of the broader SN74xx logic family, specifically the F (Fast) variant known for speed optimization. It serves as a fundamental building block for sequential logic circuits. The 'D' suffix indicates a plastic dual-in-line package. It complements other SN74F components like inverters and gates in complex digital designs.

Flip Flops Replacement Considerations

Compatible substitutes include the SN74LS74 for lower speed requirements or the SN74HC74 for CMOS compatibility. Verify pinout consistency and voltage level thresholds when swapping between different logic families. Ensure that the alternative device meets the same functional timing requirements.