Draw the combinational logic of 14 demax All inputs and outp

Draw the combinational logic of 1:4 demax. All inputs and outputs are 2-bits Show control inputs clearly.

Solution

A 1-to-4 demultiplexer has 1 input Signal , 2 control Signal , and 4 output signal.

The input Signal is labelled as I. This input bit is transmitted to the data bit of the output lines and the ouput depends on the value of the control input.

.In this De Multiplexer only one input is there and there are two control lines (also called select lines). Whatever is the input that will be transferred to the output and as there are 4 outputs so depending on the control lines the input bit is transferred to the output data line

As an example suppose the control signal is 00 then ouyput y0 will be 1 (if input is 1) and output y0 will be 0 (if input is 0)

Means depending on the value of select line if select line 00 then output Y0= INPUT (whatever it is either 0 or 1)

if select line 01 then output y1 = input, if select line 10 then output y2 = input and if select line 11 then output y3 = input

	Input	Control Signal 1	Control Signal 2	Output
	0	0	0	Y0 = Input = 0
	1	0	0	Y0 = input = 1
	0	0	1	Y1 = INPUT = 0
	1	0	1	Y1 = INPUT = 1
	0	1	0	Y2 = INPUT = 0
	1	1	0	Y2 = INPUT = 1
	0	1	1	Y3 = INPUT = 0
	1	1	1	Y 3= INPUT = 1