Introducing universal QCA logic gate for synthesizing symmetric functions with minimum wire-crossings
Bibhash Sen, Mamata Dalui, Biplab Kumar Sikdar · 2010
This work introduces a universal Quantum-Dot Cellular Automata logic gate (UQCALG) for synthesizing symmetric functions with the target to reduce wire crossings in a design as well as the number of operating clock cycles. It is realized with the coupled majority-minority gate (CMVMIN) structure. The proposed UQCALG structure not only improves performance of a QCA design in terms of wire crossings and clocking, but also the simultaneous access to its four outputs ensures the cost-effective implementation of functions that may not be possible with that of conventional universal logic gates.