Integrated Circuits Used 74LS11 Procedure Add IC 74LS11 into ICBase-1 (74LS11).Connect Pin-7 (Ground) of ICBase-1 (74LS11) to GND Port.Connect Pin-1 (Input) of ICBase-1 (74LS11) to Input-0.Connect Pin-2 (Input) of ICBase-1 (74LS11) to Input-1.