NEW EFFICIENT DESIGNS FOR XOR AND XNOR FUNCTIONS ON THE TRANSISTOR LEVEL

Two new methods are proposed to implement the exclusive-OR and exclusi ve-NOR functions on the transistor level. The first method uses non-co mplementary signal inputs and the least number of transistors. The oth er one improves the performance of the prior method but two more trans istors are utilized. The latter uses the same number of transistors as [1] but with more driving capability additionally. Both of them have been fully simulated by HSPICE on a SUN SPARC 2 workstation.