Integrated Circuits Used 74LS00 Procedure Add IC 74LS00 into ICBase-1 (74LS00).Add IC 74LS00 into ICBase-2 (74LS00).Connect Pin-7 (Ground) of ICBase-1 (74LS00) to GND Port.Connect Pin-20 (VCC) of ICBase-1 (74LS00) to VCC Port.