An Efficient Design of Binary to Gray Code Binary Converter using QCA

Abstract

Abstract An upcoming Quantum Dot Cellular Automata (QCA) technology promises the incomparable compactness, high-speed operation and the features of ultralow-power utilization. In QCA, fault-tolerance is a significant feature to be considered in order to explore and manufacture quantum dots. For the reason of its high density and its inbuilt substantial properties. In this paper, the QCA based 2-bit, 3-bit, 4-bit, and 5-bit gray code converter have been proposed. The proposed converter designs reduce the number of cells (57.5% for 2-bit, 62.19% for 3-bit, 64.28% for 4-bit) and area (50% for 2-bit, 63.63% for 3-bit and 53.33% for 4bit) as compared to the earlier existing circuit, and also design a 5-bit converter. An integrated parameter, Area Utilization Factor (AUF) is also calculated for all the designs.