Novel Logic Circuits Controlled by Vdd

Abstract

Polymorphic gates exhibit one or more additional functions in addition to the "main" function of the gate. The additional functions can be activated under certain conditions by changing control parameters (such as temperature, Vdd, light etc.) of the circuit. This paper shows a non-trivial polymorphic combinational circuit (5 bit majority/Boolean symmetry) which was designed at the gate level and then simulated using polymorphic NAND/NOR gates controlled by Vdd and some conventional gates at the transistor level. PSpice simulations have shown correct behavior of this circuit