Texas Instruments

SN74LS109AN

SN74LS109AN Description

The SN74LS109AN from Texas Instruments is a dual JK-type flip-flop integrated circuit (IC) designed for high-speed digital logic applications. Housed in a 16-pin DIP package, it features two independent 1-bit flip-flops with complementary outputs, offering reliable performance in sequential logic circuits. Operating within a 4.75V to 5.25V supply range, it supports positive-edge triggering with a maximum clock frequency of 33 MHz, making it suitable for timing-critical systems. The device exhibits a low propagation delay of 40ns at 5V with a 15pF load, ensuring efficient signal processing.

SN74LS109AN Features

• JK-Type Flip-Flop: Provides set (preset) and reset functionality for flexible state control.
• High-Speed Operation: 33 MHz clock frequency and 40ns propagation delay enable rapid data handling.
• Low Power Consumption: 8 mA quiescent current and 400µA/8mA output drive ensure energy efficiency.
• Robust Design: RoHS3 compliant and REACH unaffected, meeting environmental standards.
• Wide Temperature Range: Operates reliably from 0°C to 70°C, suitable for industrial and commercial use.
• Through-Hole Mounting: 16DIP package simplifies prototyping and breadboarding.

SN74LS109AN Applications

• Clock Synchronization: Ideal for frequency dividers, counters, and shift registers due to its edge-triggered design.
• Data Storage: Used in memory address registers and state machines for temporary data retention.
• Control Systems: Employed in pulse shaping, debouncing circuits, and timing controllers.
• Industrial Electronics: Suitable for automation systems where noise immunity and stable operation are critical.
• Educational Projects: A preferred choice for digital logic labs owing to its simplicity and reliability.

Conclusion of SN74LS109AN

The SN74LS109AN stands out as a versatile, high-performance JK flip-flop for digital systems requiring precision timing and low-power operation. Its complementary outputs, robust construction, and ease of integration make it a go-to solution for embedded systems, industrial controls, and educational setups. With Texas Instruments' proven quality, this IC delivers consistent performance in demanding applications, offering a balance of speed, reliability, and cost-effectiveness.