Integrated Circuits Used 74LS00 74LS08 Procedure Add IC 74LS00 into ICBase-1 (74LS00).Connect Pin-7 (Ground) of ICBase-1 (74LS00) to GND Port.Connect VCC Port to Pin-20 (VCC) of ICBase-1 (74LS00).Add IC 74LS08 into ICBase-2 (74LS08).