SN74LS109ANS

Flip Flops Overview

The SN74LS109ANS is a dual J-K positive-edge-triggered flip-flop from the Texas Instruments 74LS series. It features two independent circuits in a 16-pin DIP package. Key electrical parameters include a propagation delay of 40 ns, a low-level output current of 8 mA, and a high-level output current of -400 µA. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to 70°C.

Flip Flops Feature Summary

• Dual positive-edge-triggered J-K flip-flops with preset and clear inputs
• TTL-compatible input and output characteristics
• Standard 16-pin plastic DIP packaging for through-hole mounting

Flip Flops Applications

• Digital counters
• Shift registers
• Frequency dividers

Flip Flops Procurement Notes

Verify the specific suffix 'ANS' against the manufacturer's official datasheet to confirm pinout and electrical specifications match your design requirements. Ensure the component meets RoHS compliance standards if required by your manufacturing process. Cross-reference the part number with authorized distributors to confirm availability and authenticity before procurement.

Flip Flops Selection Notes

Select this component when designing TTL-based sequential logic circuits requiring dual J-K functionality. Consider the 40 ns propagation delay and 8 mA drive capability for timing and load analysis. Verify that the 16-pin DIP form factor fits the target PCB layout constraints compared to surface-mount alternatives.

Flip Flops Part Context

This part belongs to the Texas Instruments 74LS (Low-power Schottky) logic family, known for improved speed over standard LS logic while maintaining lower power consumption than F-series devices. The SN74LS109ANS variant specifically denotes the Dual J-K Flip-Flop configuration housed in a Plastic Dual In-line Package suitable for general-purpose digital applications.

Flip Flops Replacement Considerations

Compatible substitutes include SN74LS109ADRE4 and SN74LS109ANE4. Verify package compatibility and electrical parameter equivalence before substitution.