Integrated Circuits Used 74LS138 74LS04 74LS32 Procedure Add IC 74LS138 into ICBase-1 (74LS138).Add IC 74LS04 into ICBase-2 (74LS04).Add IC 74LS32 into ICBase-3 (74LS32).Connect Input-5 to Pin-1 (Input) of ICBase-1 (74LS138).
