ECE 2020 Midterm: ECE 2020 GT fa10 sw Exam 1
15 Feb 2019
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Instructions: this is a closed book, closed note exam. If you have a question, raise your hand and i will come to you. Please work the exam in pencil and do not separate the pages of the exam. 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 form where they are ready for switch level implementation (i. e. , there should only be bars over input variables, not over operations). The behavior of the expression should remain unchanged. Part b (8 points) derive the behavior of the following canonical product of sums (using maxterms) expression and complete the truth table.
