Integrated Circuits Used 74LS153 Procedure Add IC 74LS153 into ICBase-2 (74LS153).Connect Pin-2 (Input) of ICBase-2 (74LS153) to Input-12.Connect Pin-7 (Output) of ICBase-2 (74LS153) to Output-10.Connect Pin-17 (Input) of ICBase-2 (74LS153) to VCC Port.