Helios

I have a really big test about digital electronics coming soon, and I got stuck on a really basic exercise, as usual

It's about MUX realization, I just had to miss that lesson and now I don't even know the basics.. damn!

Anyway,

I have this function: F(A,B,C,D) = A'(C'+B'D')+CD(A+B)

I have to realize this function using a 8-to-1 MUX, while the control inputs are A,C and D.

2nd, I have to realize the same funcion using a 4-1 MUX. I can select any control inputs, but I have to keep the minimum number of added gates.

help?

It's about MUX realization, I just had to miss that lesson and now I don't even know the basics.. damn!

Anyway,

I have this function: F(A,B,C,D) = A'(C'+B'D')+CD(A+B)

I have to realize this function using a 8-to-1 MUX, while the control inputs are A,C and D.

2nd, I have to realize the same funcion using a 4-1 MUX. I can select any control inputs, but I have to keep the minimum number of added gates.

help?