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1. The circuit shown in the figure has 4 boxes each described by inputs P, Q, R and outputs Y, Z with Y = P ⊕ Q ⊕ R, Z = RQ + P R + Q P The circuit is a





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  • By: guest on 02 Jun 2017 12.56 am
    Let P = 1101 Q = 1101 Yn = Pn ⊕ Qn ⊕ Rn Z = Rn Qn + P n Rn + Qn P n Constructing truth table So that, Rn + 1 = Zn 1 ≥ n ≥ 3 Z4 = R5(MSB) Hence, output is 00010 which show that it is a 4 bit subtractor giving P - Q.
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