NAND Gate Based QCA 2-to-1 Line Multiplexer
نویسندگان
چکیده
Quantum-dot cellular automata (QCA) is important technology to be replaced with CMOS. QCA is a new paradigm for digital computing that, theoretically, is expected to reach very high operating frequencies and significant reduction of power consumption. A multiplexer is an important element and it is used in many logic gates and functional circuits. A NAND gate is smaller, area-wise and faster than other circuits. In this paper we propose a new design of 2-to-1 line multiplexer using three NAND gates in QCA. We find an equation using De Morgan’s law and the equation can be presented by only AND and NOT logic. Thus we can implement a multiplexer by only NAND logics. Our structure reduced not only the number of cells but the required clock phases.
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