Integrated Circuits Used 74LS86 Procedure Add IC 74LS86 into ICBase-2 (74LS86).Add IC 74LS86 into ICBase-1 (74LS86).Connect Pin-2 (Input) of ICBase-2 (74LS86) to Input-1.Connect Pin-20 (VCC) of ICBase-2 (74LS86) to VCC Port.