دانشگاه آزاد اسلامی واحد تهران جنوب

صفحه اصلی / نخستین همایش هوش مصنوعی و پژوهش های نوظهور: همگرایی انسان و سیستم های هوشمند

Designing an optimized circuit based on QCA using a three-input XOR gate

نویسندگان :

Atoosa Kameli¹ Roshanak Rafiei Nazari² Razieh Farazkish³

1- دانشگاه آزاد اسلامی واحد تهران جنوب 2- دانشگاه آزاد اسلامی واحد تهران جنوب ( مجتمع ولیعصر ) 3- دانشگاه آزاد اسلامی واحد تهران جنوب

کلمات کلیدی :

XOR3،QCA،Nano Electronics Circuits،Adder

چکیده :

Circuits built using CMOS technology have a very significant difference in area and power consumption compared to circuits built using QCA technology. QCA is much smaller than CMOS, with the dimensions of QCA cells being implementable at the molecular or atomic level. QCA has a very low power consumption compared to CMOS. Because not only is there no current in the circuit, but there will also be no output capacitor in the circuit. In some QCA implementations, interactions are magnetic, and only in these cases will they operate slower than CMOS. Considering the slowness of QCA circuits in some implementations and the propagation of logic from both sides of the wires and gates, there is a strong need for a clock in them. QCA has simple structures for designing AND and OR gates. In this research, a three-input XOR gate circuit based on half-distance and cellular interaction is proposed. The number of cells in the proposed method has been reduced to 12 cells, resulting in a smaller area compared to the similar gates presented in previous researches, which can be used to create a stable adder or other circuits with a smaller area.