ISRO Electronics & Communication (ECE) 2012 - Question 66

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Topic: Digital Circuits

The truth table for implementing a boolean variable F is given by ... where d represents don't care states. The minimized expression for F is

  • A. $B\cdot\overline{C}+A\cdot\overline{C}+A\cdot B$
  • B. $A\cdot B+\overline{C}$
  • C. $\overline{A}\cdot B\cdot\overline{C}+A\cdot\overline{B}\cdot\overline{C}+A\cdot B\cdot C$
  • D. None of above

Answer: B. $A\cdot B+\overline{C}$

Explanation: Solving via K-map using the given truth table minterms and don't care conditions results in $F = \overline{C}+AB$.

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