DE 2012 Previous Year Questions (Digital electronics)

B.Tech CS Digital electronics (DE) 2012  Previous Year Questions - MinMarks

 

Q.1 Obtain minimum SOP expression for following Boolean expression using Karnaugh Map.

      F = ∑ m(0,1,2,5,7,9,13,15)+d(8,11) 

     Realize the minimized function using logic gates.

Q.2 Implement the following boolean function with NOR -NOR gate logic. 

 Y = AC + BC + D

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DE Previous Year Questions (Digital electronics ) - MinMarks

B.Tech CS Digital electronics (DE) 2013  Previous Year Questions - MinMarks

Q. 1 Realize the following.

1. $Y = \sum m(0,1,2,3,11,12,14,15)$ Using 16 :1 multiplexer
2. $Y = \prod m(0,1,3,7,9,10,11,13,14,15)$ using 4 to 16 line decoder

Q.2 Simplify the following logic expression using K-map and implement then using NAND gate :
1. $Y = (A+\overline{B}+C)(\overline{A}+\overline{B}+\overline{C})(\overline{B}+\overline{C}+D)$
2. Y = ABC¯D+A¯BCD+A¯ B¯C+A¯ B¯ D¯+B

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