SN74F109DG4

Flip Flops Overview

The SN74F109DG4 is a dual positive-edge-triggered J-K flip-flop manufactured by Texas Instruments. It belongs to the SN74F series, utilizing Schottky diode technology for high-speed operation. The device features independent clock inputs and separate set and reset inputs for each flip-flop. It operates within a supply voltage range of 4.5 V to 5.5 V. The component is housed in a 16-pin SOIC-Narrow package and supports surface-mount installation. It includes TTL-compatible inputs and outputs.

Flip Flops Feature Summary

• Dual positive-edge-triggered J-K flip-flop configuration
• Schottky diode technology for high-speed performance
• Independent clock, set, and reset inputs per flip-flop

Flip Flops Applications

• High-speed digital logic circuits
• Data storage and transfer registers
• Frequency division circuits
• Counters and shift registers

Flip Flops Procurement Notes

Verify the specific ordering suffix 'DG4' against the manufacturer's current product status documentation. Confirm that the package designation matches the required SOIC-Narrow-16 footprint for PCB layout compatibility. Ensure the logic family specifications align with the system's voltage and speed requirements before finalizing procurement.

Flip Flops Selection Notes

Select this component when high switching speeds are critical compared to standard or low-power logic families. The SN74F series offers faster propagation delays than LS or HC variants. Verify that the power supply can handle the higher current consumption typical of Schottky logic. Ensure input signals meet TTL voltage thresholds for reliable triggering.

Flip Flops Part Context

This part is a variant of the SN74F109 series, distinguished by the 'G4' suffix indicating lead-free manufacturing compliance. It serves as a high-performance alternative to slower logic families in time-sensitive digital designs. The device provides two independent flip-flops in a single package, optimizing board space for complex sequential logic applications.

Flip Flops Replacement Considerations

Direct replacements include the SN74F109D (non-lead-free) or other SN74F series flip-flops with compatible pinouts. Cross-family substitutions like SN74LS109 require evaluation of speed and power differences.