Novel and Reliable Design of 5-input Majority Gate in Quantum-dot Cellular Automata Approach

Abstract

It is the demand and necessity of time to achieve a reliable and low power consumption circuit designs for a very fast growing field of low power circuit designing at nano technology. The Quantum-dot Cellular Automata (QCA) can be an alternative of CMOS approach for this low power nano-scale regime due to its small size, extremely high speed of operation, reliable circuit designing and robustness in the structure. In this presentation, a novel 5-input majority gate has been presented using Rotated Majority Gate structure only. Rotated Majority Gate (RMG) is a fundamental logic gate in QCA approach similar to Original Majority Gate. Mathematical proof for RMG Gate is obtained and structural analysis for 5-input MG has been carried out systematically. Based on the proposed 5-input MG, a novel design of 1-bit Full Adder has been implemented which requires very less number of cell counts, area and clock cycles in its design. QCADesigner 2.0.3, a simulation tool, has been used for checking the working condition of the proposed approaches.

A Solution to VLSI: Digital Circuits Design in Quantum Dot Cellular Automata Technology

“…Power dissipation analysis for various kink energy values is calculated in QCA Pro. Various parameters like maximum, minimum, and average energy dissipation of the circuit, average leakage energy dissipation, and average switching energy dissipation of the circuit are obtained [27].…”