Integrated Circuits Used 74LS90 74LS138 74LS76 74LS08 74LS32 Procedure Add IC 74LS90 into ICBase-1 (74LS90).Add IC 74LS138 into ICBase-2 (74LS138).Add IC 74LS76 into ICBase-3 (74LS76).Add IC 74LS08 into ICBase-4 (74LS08).Add IC 74LS32 into ICBase-5 (74LS32).
