STMicroelectronics M74HC109B1R Dual JK Flip-Flop with Set and Reset

The M74HC109B1R is an integrated circuit designed and manufactured by STMicroelectronics, a leader in semiconductor solutions. This high-speed Si-gate CMOS device complies with JEDEC standard no. 7A. It is a dual JK flip-flop chip which features individual J, K, set, reset, and clock inputs for each flip-flop. This chip is particularly suitable for applications that require synchronous or asynchronous control in various digital systems.

One of the key features of the M74HC109B1R is its capability to toggle by a high-to-low transition of the clock input while the set and reset inputs (S and R) are held low. The set and reset are asynchronous inputs that override the clock and data inputs, allowing the flip-flop to be set or reset independently of the clock signal. This provides designers with a high degree of control over their digital logic systems.

The device is designed with latch-up performance that meets 100mA per JESD 78, Class II, ensuring reliability and robust performance. It also has a high noise immunity characteristic of CMOS devices, which is particularly important in electrically noisy environments or in applications where signal integrity is paramount.

With its low power consumption, the M74HC109B1R is ideal for battery-operated and portable devices, as well as for more complex electronic systems where power efficiency is a concern. The device operates over a broad voltage range from 2V to 6V, making it versatile for use in various applications and compatible with TTL levels.

Available in a standard DIP-16 package, the M74HC109B1R is easy to integrate into a wide range of electronic circuits. Its pin configuration is designed for straightforward PCB layout, which simplifies the design process for engineers and PCB designers.

STMicroelectronics provides detailed datasheets and technical support for the M74HC109B1R, ensuring that engineers have access to all the information they need to successfully incorporate this flip-flop into their designs. Whether used in digital counters, control circuits, or other applications requiring reliable flip-flop operations, the M74HC109B1R is a solid choice for designers looking for a high-performance, dual JK flip-flop with set and reset functionality.