Integrated Circuits Used 74LS10 Procedure Add IC 74LS10 into ICBase-1 (74LS10).Add IC 74LS10 into ICBase-2 (74LS10).Connect Pin-20 (VCC) of ICBase-1 (74LS10) to VCC Port.Connect Pin-7 (Ground) of ICBase-1 (74LS10) to GND Port.