Integrated Circuits Used 74LS08 74LS32 Procedure Connect GND Port to Pin-7 (Ground) of ICBase-2 (74LS08).Connect VCC Port to Pin-20 (VCC) of ICBase-2 (74LS08).Add IC 74LS08 into ICBase-2 (74LS08).Add IC 74LS32 into ICBase-3 (74LS32).