Karnaugh maps provide a simple and straight-forward method of implementing multiplexers. With the Karnaugh map Boolean expressions having up to four and even six variables can be implemented.
It is presumed that you are familiar with the basics of Karnaugh maps however, if you are unfamiliar then click here.
Consider the function:
As with the algebraic method example, C is taken to be the data variable and A,B to be the select variables.
In the above example we could have picked any variable to be the data variable and the other two as select variables. Suppose one were to take A as the data variable. The corresponding Karnaugh map is then:
For the first problem, try using A as the data variable and B,C as the select
For the second problem, try using C as the data variable and A,B as the select variables.
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