Switch-level simulation and the pass transistor EXOR gate

The nonrestoring pass transistor EXOR gate is investigated by switch-level simulation. It is shown that the logical function of the EXOR gate depends on the driving conductance on the inputs to the gate. It is also shown why switch-level simulators are unsuccessful in simulating the pass transistor EXOR gate, and how a switch-level simulator can be designed to produce a correct simulation result. >