1 votes 1 votes Q: One general doubt I m having is that can combinational circuit namely multiplexer, demultiplexer and decoder be implemented in POS ( Product of Sum) form?? If so what modification is required ? Digital Logic digital-logic combinational-circuit pos + – Habibkhan asked Oct 27, 2016 Habibkhan 425 views answer comment Share Follow See all 2 Comments See all 2 2 Comments reply srestha commented Oct 27, 2016 reply Follow Share is there any difference in represent one circuit in SOP and in POS form? I think no. Actually we are habituated in writing an expressin in SOP form. Same can berepresented in POS too 2 votes 2 votes Digvijaysingh Gautam commented Oct 29, 2016 reply Follow Share @Habib, I think we can do this. 1) Multiplexer Multiplexers are universal circuit. So it can be definitely implemented in POS. 2) Demux and Decoder In order to get POS form, connect the output to NOR gate and u will get POS form. I have assumed that the docoder is positive logic one. For negative logic decoder use AND gate. 2 votes 2 votes Please log in or register to add a comment.