ECE 2020 Midterm: ECE 2020 GT fa08 sl 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. For each partial switch circuit below, complete the complementary switching network so the circuit contains no floats or short. Also write the boolean expression computed by the completed circuit. Assume the inputs and their complements are available. 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 a (10 points) implement the following expression using multi-input nand gates and inverters to minimize total transistors (switches) required. Part b (8 points) write the boolean expression intended by the designer in for the mixed logic circuit below.
