The 74HC73D/C4118 is a dual negative edge-triggered JK flip-flop IC manufactured by NXP Semiconductors, capable of handling two separate data inputs. It operates with a supply voltage range of 2 to 6 volts and features high noise immunity, making it suitable for use in various electronic circuits. This IC has a maximum propagation delay of 22 ns, allowing for high-speed operation. The flip-flop has a clear input for resetting both outputs, as well as preset inputs for setting the Q output to a specific state. It also has complementary outputs Q and Q', and individual clock inputs for each flip-flop. The 74HC73D/C4118 is widely used in applications such as counters, registers, and frequency dividers due to its reliable performance and ease of use