Binary to gray and gray to binary converter in quantum-dot cellular automata

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• 作者：Ehsan Taher Karkaj ; Saeed Rasouli Heikalabad ; ^{s.rasouli@iaut.ac.ir}
• 关键词：Quantum-dot cellular automata (QCA) ; Reversible logic ; Binary code ; Gray code ; Converter ; Nanotechnology
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：130
• 期：Complete
• 页码：981-989
• 全文大小：3376 K
• 卷排序：130

文摘

The current VLSI technology is based on CMOS technology. The recent challenges of this technology caused to proposed new technology based on quantum-dot cellular automata (QCA). Structures in this technology are based on quantum cells and their sizes are nanoscale. This feature is caused to occur faults in QCA circuits. To resolve this problem can be used testable reversible logic gates in circuits. In this paper, we propose a new two-input XOR gate. Then we describe a non-reversible QCA structure and subsequently reversible QCA structure for 4-bit binary to gray and gray to binary converter. These structures are simulated with QCADesigner and compared with previous structures.