Modular Design of 2 n :1 Quantum Dot Cellular Automata Multiplexers and its Application, via Clock Zone based Crossover
Sonali Singh, Shraddha Pandey, Subodh Wairya · International Journal of Modern Education and Computer Science · 2016
Quantum-Dot Cellular Automata (QCA) is a radical technology, which works at Nanoscale.Due to its numerous advantages over the conventional CMOS-based digital circuits, researchers are now concentrating more on designing digital circuits using this technology.Researchers have reported various findings in this field till now.In this paper, a modular 2:1 Multiplexer has been designed followed by its application in the designing of 1-bit parallel memory.A 4:1 MUX is designed using cascading of two 2:1 multiplexers.This paper also incorporates a comparative analysis of the proposed circuits with some previous designs.This comparison indicates that the designed Multiplexer is showing a considerable reduction in cell count as well as in the area.Here the design and simulation of the circuits are done using QCA Designer Ver.1.40.Power dissipation simulation analysis of the designed 4:1 multiplexer is also done using QCA Pro tool.