Integrated Circuits Used 74LS00 Procedure Add IC 74LS00 into ICBase-2 (74LS00).Add IC 74LS00 into ICBase-3 (74LS00).Connect Pin-1 (Input) of ICBase-2 (74LS00) to Input-1.Connect Pin-2 (Input) of ICBase-2 (74LS00) to Input-0.