SL74HC109 - Dual J-K Flip-Flop with Set and Reset
SL74HC109 Dual J -K Flip-Flop with Set and Reset High-Performance Silicon-Gate CMOS The SL74HC109 is identical in pinout to the LS/ALS109.
The device inputs are compatible with standard CMOS outputs, with pullup resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two J-K flip-flops with individual set, reset, and clock inputs.
Changes at the inputs are reflected at the outputs with the next low-to-high transition of the clock.
Both Q to Q outputs are available from eac