As the title says I have problem with understanding how to make the truth table for demultiplexer and how to make a Boolean expression from it. The thing that bothers me is how to make a truth table with more than one outputs. I search through google and I've found this answer
However I can't understand it, and I have no idea what to do. Any help is appreciated.
I got it, in case anybody came here with search engine, read the comments, and don't Or(+) the outputs.
Best Answer
Following is the truth table for a sixteen-to-one demultiplexer.
A0 through A3 are the output address select inputs, and are used to steer the digital input signal on E1 bar to the output corresponding to the port pointed to by the address select inputs, as long as E2 bar is low.
If you need to construct the Boolean equation for each state, then all you have to do is to collect the terms required to make that state unique and relate them properly.