74F109SC

Flip Flops Overview

The Fairchild Semiconductor 74F109SC is a dual positive-edge-triggered J-K flip-flop belonging to the F/FAST logic series. It features TTL-compatible inputs and outputs, housed in a 16-pin SOIC package. The device operates within a supply voltage range of 4.5 V to 5.5 V, with a maximum propagation delay of 8 ns at 5 V with 50 pF load. It supports preset and reset functions, offering complementary outputs for each of its two circuits.

Flip Flops Feature Summary

• Dual positive-edge-triggered J-K flip-flop configuration
• TTL-compatible input and output levels
• Integrated preset and reset control functions

Flip Flops Applications

• High-speed digital data storage systems
• Frequency division and counting circuits
• Parallel-to-serial data conversion modules

Flip Flops Procurement Notes

Verify component authenticity through authorized channels due to potential availability of obsolete or refurbished units. Confirm package integrity and pin alignment against original specifications. Request manufacturer documentation to validate lot codes and traceability. Ensure compliance with RoHS directives if required by project standards. Inspect for physical damage prior to integration into circuit assemblies.

Flip Flops Selection Notes

Select this component for applications requiring fast switching speeds within standard TTL voltage ranges. Consider the 16-SOIC package for surface-mount assembly constraints. Evaluate thermal performance within the specified operating temperature range. Compare propagation delays against system timing requirements. Assess power consumption characteristics relative to other logic families for efficiency optimization.

Flip Flops Part Context

This part belongs to the SN74F109 family, representing high-speed ECL-derived logic technology adapted for TTL interfaces. It provides enhanced performance over standard LS series devices while maintaining compatibility. The F/FAST series was designed for applications demanding rapid signal processing and low power dissipation in complex digital architectures.

Flip Flops Replacement Considerations

• SN74F109D (Texas Instruments)
• SN74F109DR (Texas Instruments)

Flip Flops FAQ

What is the trigger type of the 74F109SC?

It utilizes a positive-edge-triggering mechanism for state transitions.

Does the 74F109SC include asynchronous controls?

Yes, it features dedicated preset and reset inputs for immediate state setting.