Integrated Circuits Used 74LS76 Procedure Add IC 74LS76 into ICBase-1 (74LS76).Connect VCC Port to Pin-5 (VCC) of ICBase-1 (74LS76).Connect VCC Port to Pin-6 (Input) of ICBase-1 (74LS76).Connect Output-2 to Pin-17 (Ground) of ICBase-1 (74LS76).