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How can I implement a 4-variable function using 4-to-1 mux?

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Hello everybody,

I have a question that I can't figure out for 2 days. Here is my question: I have 4-variable function (A,B,C,D). I want to implement it using 4x1 mux and external gates. I have to connect A and B to the selection lines. Plus, the four input lines will be the function of C and D for each one of the four possible values of AB.

Anyone has ideas on that question?
 

Re: How can I implement a 4-variable function using 4-to-1 m

Can you please explain the question in detail?
 

Re: How can I implement a 4-variable function using 4-to-1 m

kdeenada said:
Can you please explain the question in detail?
Click to expand...
Here is the original form of the question:

Implement the function F (A, B, C, D) = Σ (0, 1, 2, 3, 4, 5, 8, 11, 13, 14) using a 4 x 1 multiplexer and external gates. Connect A and B to the selection lines. The four input lines will be a function of C and D for each of the four possible values of AB. You may need external gates to implement these functions. The input lines may also be connected to 0 or 1.
 

Re: How can I implement a 4-variable function using 4-to-1 m

this will work....

I0(A'B') = logic 1
I1(A'B) = (not C)
I2(AB') = (C xnor D)
I3(AB) = (C xor D)
 

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Re: How can I implement a 4-variable function using 4-to-1 m

You can find the solution for function implementation using multiplexers in morrismano. Chapter 5 and page 179.
 

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@dilinx, pavan.ps:

Thank you for your helps. I figured it out! :)
 

would u kindly upload the fig og circuit plz?
 

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