HW 2 Due Jan 21 2004 Name GT Email Transistor Level Circuit Understanding 1 For the following switch level circuit complete the truth table computed If a floating or shorted output is detected indicate that in the truth table If no floats or shorts are detected write the Boolean expression computed by the circuit It may help to derive the Boolean expression first A C B Out A B C Write the Boolean expression for this function pmos B A C nmos AC B From pmos 0 when B 1 0 when A C 1 1 1 elsewhere A B C Out 0 0 0 1 0 0 1 1 From nmos 1 when AC B 0 same as above 0 1 0 0 0 1 1 0 1 0 0 1 1 0 1 0 1 1 0 0 1 1 1 0 ECE2030 p 1 of 2 HW 2 Due Jan 21 2004 Name GT Email 2 Simplify the Boolean expression Out A C B C A CB Complete the truth table A B C Out 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 1 Draw the CMOS transistor diagram Assume A A B B C C signals are available Use 6 transistors A B C Out B C A Be sure to work other example problems so that you can quickly take a transistor circuit and write the Boolean logic expression or design the transistor circuit for a given Boolean expression ECE2030 p 2 of 2
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