AREA EFFICIENT CODE CONVERTERS BASED ON QUANTUM-DOT CELLULAR AUTOMATA

Quantum-dot Cellular Automata (QCA) is an alternative innovation to the Complementary Metal Oxide Semiconductor (CMOS) because CMOS has scaling limitations that lead to high leakage power. QCA is structured on quantum cells, whose sizes are on the nanoscale. This component causes faults in QCA circuits. Converting a code into another that is programmed in logic arrays becomes important in the physical realization of the circuits. There are many methods to resolve this problem in circuits. A code converter is a solution to convert one code into another. In this paper, QCA-based “4-bit binary-to-gray” and “4-bit gray-to-binary code converters” are suggested. The offered layout prospects to a decrease in energy expenditure and can be utilized in many fields for shielding data from outsiders and increasing information flexibility. We executed a relative analysis of the suggested design with present earlier designs and turned out that the suggested layout is productive on condition that complexity, cell count, area intake, and clocking. This paper offers a streamlined design and layout concerning code converters depending on QCA. These structures are designed with the QCADesigner, simulator and the simulation results are examined.