Designing a demux for even odd integers

Thread Starter

Oğulcan Coşkunol

Joined Aug 9, 2017
2
Design a circuit that displays the odd and even integers between 0-7. Use a 3x8 DEMUX and 2-
input AND gates to implement the design.
F1
(A, B, C) = ∏(0,2,4,6)
F2
(A, B, C) = ∏(1,3,5,7)

I made kmaps for these and came with F1 = C' F2 = C and can't found a way to design this circuit on quartus. Is it possible to have 3x8 demux or will we use 1x8 demux?
 

WBahn

Joined Mar 31, 2012
30,062
You need to explain the problem a bit better. Your statement says that your circuit is supposed to DISPLAY the odd and even integers between 0 and 7. What does it mean to "display" them?

It would seem more likely that your assignment is just to indicate whether a given input is an even or an odd integer, but I'm guessing at that.

Forget about Quartus or any other specific platform. Can you design a circuit that does what you want using only 3x8 demultiplexers and 2-input AND gates?

What is a 1x8 demux? How do you take a 1-bit input and decide which of 8 output bits to assert?
 

Thread Starter

Oğulcan Coşkunol

Joined Aug 9, 2017
2
I suppose with display, he meant to even or odd.
I can't design a 3x8 demux, thats why I asked is it possible.
I am not sure how type of demux we need as inputs and outputs.
 

WBahn

Joined Mar 31, 2012
30,062
What is preventing you from designing a 3x8 demux?

Do you know what a 3x8 demux is? Can you describe, in words, what the inputs and outputs are and how they are supposed to behave?

Are you sure you are supposed to use a demultiplexer and not a decoder?
 
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