ON Semiconductor MC74ACT109 Dual JK Positive Edge-Triggered Flip-Flop

The MC74ACT109 is a versatile dual JK flip-flop integrated circuit from ON Semiconductor, designed for high-speed synchronous sequential logic applications. This device is part of the AC series, which is renowned for its robust performance and compatibility with TTL (Transistor-Transistor Logic) levels. The MC74ACT109 is particularly well-suited for use in counters, registers, and various memory devices due to its positive-edge triggered capability and the versatility of the JK flip-flop configuration.

Each flip-flop in the MC74ACT109 has independent J, K, Set, Reset, and Clock inputs, with both Q and Q̅ outputs. The JK design allows for more complex switching actions as both inputs can be high simultaneously, offering toggle functionality. This feature is particularly useful in frequency division applications or any system requiring a controlled change-over of output states.

The device operates with a supply voltage range of 4.5V to 5.5V, making it compatible with standard 5V digital systems. The MC74ACT109 boasts fast propagation delays and a high noise immunity, characteristic of the Advanced CMOS technology used in its manufacturing. This ensures reliable operation even in noisy environments, which is critical for high-speed digital electronics.

ON Semiconductor's commitment to quality is evident in the MC74ACT109's design, which includes high drive output buffers to provide high current sourcing capabilities, essential for driving heavy loads. Furthermore, the device is available in multiple package options, including the compact SOIC and TSSOP packages, which are ideal for space-constrained applications.

Overall, the MC74ACT109 from ON Semiconductor is an excellent choice for designers who require a dependable and flexible JK flip-flop for their digital circuit designs. Its high-speed operation, combined with the ability to handle challenging electrical environments, makes it a reliable building block for a wide array of electronic systems.

For detailed specifications and application guidance, designers are encouraged to consult the official datasheets and support documentation provided by ON Semiconductor.