Product Overview: 74HC109 Dual JK Flip-Flop with Set and Reset from NXP

The 74HC109 is a high-speed Si-gate CMOS device designed and manufactured by NXP Semiconductors. This integrated circuit is part of the 74HC family, which is well-known for its high noise immunity and low power consumption. The 74HC109 is a dual JK flip-flop with set and reset capabilities, making it a versatile component for a wide range of digital applications.

The chip features two JK flip-flops with individual J, K, clock, and asynchronous set and reset inputs. Each flip-flop has independent Q and Q̅ outputs. The asynchronous set (SD) and reset (RD) inputs are active low, meaning that they will trigger their respective actions when a low logic level is applied, overriding any other inputs at the time.

One of the key attributes of the 74HC109 is its ability to operate at high speeds while maintaining a stable state, which is essential for applications requiring precise timing and control. The JK flip-flop design allows for toggling its state on the falling edge of the clock signal when both J and K inputs are high, providing a greater degree of control over the output state transitions.

Additional features of the 74HC109 include:

• Wide Operating Voltage Range: It can function with a supply voltage ranging from 2V to 6V, accommodating various logic level requirements.
• High Noise Immunity: The CMOS technology ensures that the device is less susceptible to noise, which is critical for reliable operation in electrically noisy environments.
• Low Power Dissipation: The 74HC109 is designed for low power consumption, making it suitable for battery-operated devices and energy-efficient applications.
• Compatibility: It is TTL compatible, allowing for easy integration with TTL logic where necessary.

The 74HC109 is commonly used in counters, control circuits, and various flip-flop applications where the need for a set/reset function is required. Its robust design and reliable performance make it a preferred choice for designers and engineers in the digital electronics domain.

Whether you are developing consumer electronics, automotive systems, or complex digital logic circuits, the NXP 74HC109 Dual JK Flip-Flop provides the functionality and reliability needed to ensure the success of your projects.