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Volume 31 Issue 6
Jun.  2009
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Xia Yin-shui, Qiu Ke-ming. Comparator Design Based on Quantum-Dot Cellular Automata[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1517-1520. doi: 10.3724/SP.J.1146.2008.00838
Citation: Xia Yin-shui, Qiu Ke-ming. Comparator Design Based on Quantum-Dot Cellular Automata[J]. Journal of Electronics & Information Technology, 2009, 31(6): 1517-1520. doi: 10.3724/SP.J.1146.2008.00838

Comparator Design Based on Quantum-Dot Cellular Automata

doi: 10.3724/SP.J.1146.2008.00838
  • Received Date: 2008-07-02
  • Rev Recd Date: 2008-12-24
  • Publish Date: 2009-06-19
  • Logic gates and QCA wires can be implemented by Quantum-dot Cellular Automata (QCA). In this paper, one bit, four bit and eight bit comparators are designed based on QCA. QCADesigner is used to simulate the circuits. The results show that the proposed comparators are of correct logic function. Analysis shows that the latency of proposed circuits does not increase linearly with bit size. Hence the proposed circuit has good delay property.
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