STMicroelectronics 74HC109B1 Dual JK Flip-Flop with Set and Reset

The 74HC109B1 is a high-speed Si-gate CMOS device from STMicroelectronics that is designed to comply with JEDEC standard no. 7A. This integrated circuit features dual JK flip-flops with set and reset capabilities, making it a versatile choice for a wide range of applications in digital systems.

Each flip-flop has independent J, K, set, reset, and clock inputs, and Q and Q̅ outputs. The set and reset inputs are asynchronous, providing immediate control over the output states independent of clock transitions. This allows for the flip-flops to be used in a variety of edge-triggered, level-sensitive, and pulse-triggered applications.

The 74HC109B1 is capable of operating in a wide voltage range from 2V to 6V, making it compatible with TTL levels while also providing the benefits of high-speed CMOS technology. This includes low power consumption, a characteristic that is particularly valuable in battery-operated and power-sensitive designs.

The device's flip-flops are edge-triggered, responding to the rising edge of the clock signal, which allows for precise control of the timing of state changes. This precision, combined with the synchronous set and reset capabilities, makes the 74HC109B1 suitable for implementing counters, shift registers, control circuits, and other digital logic applications that require high-speed and reliable state transitions.

The 74HC109B1 comes in a standard 16-pin DIP (Dual In-line Package) or SO (Small Outline) package, ensuring easy integration into both through-hole and surface-mount technology (SMT) based PCB designs. With its robust design and adherence to STMicroelectronics' stringent quality standards, the 74HC109B1 is a reliable component for designers looking to incorporate flip-flop functionality into their digital systems.

In summary, the STMicroelectronics 74HC109B1 is a highly functional dual JK flip-flop IC that offers versatility, low power consumption, and high-speed operation, making it an excellent choice for a variety of electronic applications.