Answer to Question #191626 in Electric Circuits for Haider

Question #191626

Design a combinational circuit with four inputs, w, x , y , and z , and four outputs, A, B , C and D. When the binary input is 0, 1, 2, or 3, the binary output is two greater than the input. When the binary input is 4, 5, 6, or 7, the binary output is one less than the input. Solve with four inputs and outputs.


1
Expert's answer
2021-05-12T16:46:32-0400

Design Procedure:

Step1:. Derive the truth table that defines the required relationship between inputs and outputs. 






Step2: Obtain the simplified Boolean functions for each output as a function of the input variables. 

Map For output A:






The simplified expression from the map is: "\\boxed{A=w}"


Map for output B:






The simplified expression from the map is: "\\boxed{B=w'y+xz+wx}"



Map for output C:






The simplified expression from the map is:"\\boxed{C=w'x'y'+w'y'z'+xyz+wy}"



Map for output D:






The simplified expression from the map is:"\\boxed{D=x'z+w'xz'+wz}"



Step3. Draw the logic diagram.

"A=w\\\\B=w'y+xz+wx\\\\C=w'x'y'+w'y'z'+xyz+wy\\\\D=x'z+w'xz'+wz"







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