MC74AC109 PDF File ( Datasheet )

. U 4 Dual JK Positive t e Edge-Triggered Flip-Flop e h The MC74AC109, 74ACT109 consists of two high speed S transition clocked completely independent JK flip flops. The clocking a t operation a is independent of rise and fall times of the clock waveform. The JK design allows operation as a D flip flop (refer to .D MC74AC74, 74ACT74 data sheet) by connecting the J and K inputs w together. w Inputs: w Asynchronous LOW input to SD (Set) sets Q to HIGH level LOW input to CD (Clear) sets Q to LOW l