SN74HC109D

Flip Flops Overview

The SN74HC109D is a dual JK flip-flop integrated circuit manufactured by Texas Instruments in a 16-pin SOIC surface-mount package. It operates on a supply voltage range of 2V to 6V with quiescent current of 4 µA and input capacitance of 3 pF. The device supports an operating temperature range of -40°C to 85°C, features a propagation delay of 12ns, maximum frequency of 29MHz, and typical current consumption of 5.2mA.

Flip Flops Feature Summary

• Contains two independent positive-edge-triggered JK flip-flops for single-bit data storage
• Includes active-low clear and preset inputs for direct control of output states
• Configurable logic clock input allows flexible timing integration

Flip Flops Applications

• Digital logic circuits requiring binary data storage
• Counters and shift register designs
• Timing sequence control systems

Flip Flops Procurement Notes

Verify the specific manufacturer source as the SN74HC109D designation appears in both Nexperia and Texas Instruments contexts. Confirm the exact datasheet version and pinout compatibility before integration. Check for obsolescence notices or lifecycle status updates from the supplier. Ensure the SOIC-16 package dimensions match the PCB footprint requirements precisely.

Flip Flops Selection Notes

Select this component when dual independent JK flip-flops are required in a compact surface-mount format. The HC series offers standard CMOS performance suitable for general digital applications. Verify that the 2V to 6V supply range aligns with the system power architecture. Consider the 12ns propagation delay for timing-critical path analysis.

Flip Flops Part Context

This part belongs to the 74HC logic family, providing high-speed CMOS operation. It is functionally equivalent to other dual JK flip-flop devices within the same logic standard. The SOIC-16 package facilitates automated assembly and space-constrained board layouts.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers include SN74HC109DR and SN74HC109N. Verify pinout and electrical specifications match exactly before substitution.