Abstract
Conventional CMOS technology comes up with a percentage of margins when climbing into a nano-level. So to overcome this, several substitute technologies have been proposed as a solution. Quantum dot Cellular Automata (QCA) technology is one such upcoming nano-technology that can be a perfect substitute of Complementary Metal Oxide Semiconductor (CMOS) due to its low power consumption and high speed in both nano-science and nano-electronics arena. Thus, QCA overpowers the hitches of CMOS technology and has a substantial relevance in the field of quantum computation. Literary study deficits in hazard free design of QCA circuits. Hazard in a system are undesirable effects which create uncertain outputs and can be avoided. In this article, static hazard has been focused for QCA circuit where 2:1 multiplexer is the experimental object. Both the hazardous and hazard-free multiplexers have been designed, analyzed, compared and finally the better one has been proposed. All designs have been confirmed using QCADesigner simulation tool.
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