The NXP 74HCT109D is a high-performance, dual JK flip-flop integrated circuit that features positive-edge triggering and a standard TTL pinout. This versatile component is part of the 74HCT series, designed to interface with 5V systems while providing the speed of CMOS technology. The 74HCT109D is ideal for a wide range of applications in computing, telecommunications, and industrial systems where reliable flip-flop operations are required.

Key Features

• Logic Type: Dual JK positive-edge triggered flip-flop ensures precise control of output transitions.
• Supply Voltage: Operates at a supply voltage range of 4.5V to 5.5V, compatible with standard TTL levels.
• High-Speed Performance: Offers fast propagation delays and high clock frequency capability, making it suitable for high-speed applications.
• Output Current: Capable of driving up to 5.2mA at the output, allowing for direct drive of LEDs or other light loads.
• Temperature Range: Designed to operate over a broad temperature range, typically from -40°C to +125°C, ensuring reliability in various environments.
• Packaging: Comes in a standard SOIC-16 package, which is surface-mountable and suitable for automated assembly processes.

Functional Description

The 74HCT109D contains two independent JK flip-flops with direct set and reset inputs. Each flip-flop has provisions for individual J, K, set, reset, and clock inputs. The JK design allows the flip-flop to operate as a toggle element when both J and K inputs are high. The positive-edge triggering of the clock input ensures that the state change occurs at a precise moment, providing synchronous operation for digital systems.

Applications

This component is widely used in applications requiring data storage, data transfer, frequency division, counters, and control circuits. Its robust design and compatibility with 5V systems make it a preferred choice for engineers and designers working on both new designs and legacy system maintenance.

Quality and Reliability

NXP Semiconductors is known for its commitment to quality, and the 74HCT109D is no exception. It is manufactured to meet stringent quality standards, ensuring high reliability and performance consistency for mission-critical applications.