ECE 2020 Midterm: ECE 2020 GT sp11 sw s1
15 Feb 2019
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The three parts below contain (a) a pull up network, (b) a pull down network, and (c) an expression to be implemented. For (a) and (b), complete the missing complementary switching networks so the circuit contains no floats or shorts and write the boolean expression computed by the completed circuit. Assume the inputs and their complements are available. Part a (12 points) transform each of the following boolean expressions to a equivalent form where they contain only and operations. Part b (8 points) derive the canonical product of sums (using maxterms) expression using the behavior expressed in the truth table. A b c a b c a b c a b c . Part a (10 points) implement a two-input odd parity gate (xor) using basic gates and inverters to minimize implementation cost. Assume only true inputs (x and y) are available. Part b (16 points) implement the follow expression using basic gates and inverters to minimize implementation cost.
