In: Electrical Engineering
Design a 4 bit Counter that displays even numbers when a switch on, and odd when the switch off . 1.by using multisim (explain in details and information of how you do it in multisim) show steps of multisim and which gates numbers you used.
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 INPUT  | 
 CURRENT STATE  | 
 NEXT STATE  | 
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 X  | 
 Q3  | 
 Q2  | 
 Q1  | 
 Q0  | 
 Q3+  | 
 Q2+  | 
 Q1+  | 
 Q0+  | 
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 0  | 
 0  | 
 0  | 
 0  | 
 0  | 
 0  | 
 0  | 
 0  | 
 1  | 
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 0  | 
 0  | 
 0  | 
 0  | 
 1  | 
 0  | 
 0  | 
 1  | 
 1  | 
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 0  | 
 0  | 
 0  | 
 1  | 
 0  | 
 0  | 
 0  | 
 1  | 
 1  | 
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 0  | 
 0  | 
 0  | 
 1  | 
 1  | 
 0  | 
 1  | 
 0  | 
 1  | 
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 0  | 
 0  | 
 1  | 
 0  | 
 0  | 
 0  | 
 1  | 
 0  | 
 1  | 
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 0  | 
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 1  | 
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Solving using 5 variable K Map
Q0+ = X’
Q1+ = Q1’Q0 + XQ1’+X’Q1Q0’
Q2+ = Q2Q1’+Q2’Q1Q0+X’Q2Q0’+XQ2’Q1
Q3+ = Q3Q2’+Q3Q1’+X’Q3Q0’+Q3’Q2Q1Q0+XQ3’Q2Q1
