TEXAS INSTRUMENTS SN74LS73AN

The SN74LS73AN is a dual J-K Flip-flop with clear with LS technology and two independent J-K flip-flops with individual J-K, clock and direct clear inputs. The LS73A contains two independent negative-edge-triggered flip-flops. The J and K inputs must be stable one setup time prior to the high-to-low clock transition for predictable operation. When the clear is low, it overrides the clock and data inputs forcing the Q output low and the Q\ output high.