CMOS Exercise

Construct the truth table for the following circuit.

[on/off conditions for transistors]

[Gate formed by four transistors]

In the table below, indicate whether each transistor (1--4) is on or off and determine whether the output (pt.C) is connected HI (+5V) or LO (ground).

[Format for truth table]

What common logic gate does the circuit represent?

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Last updated Feb. 4, 1998.
Copyright George Watson, Univ. of Delaware, 1996.