74LS109.pdf 54LS109 DM54LS109A DM74LS109A Dual Positive-Edge-Triggered J-K Flip-Flops with Preset Clear and Complementary Outputs June 1989 54LS109 DM54LS109A DM74LS109A Dual Positive-Edge-Triggered J-K Flip-Flops with Preset Clear and Complementary Outputs General Description This device contains two independent positive-edge-trig- cl……