An Efficient and Optimized Multiplexer Design for Quantum-Dot Cellular Automata

作者：Hayati Mohsen^*; Rezaei Abbas

来源：Journal of Computational and Theoretical Nanoscience, 2014, 11(1): 297-302.

DOI：10.1166/jetn.2014.3206

• Quantum-Dot Cellular Automata
• Multiplexer
• QCA Designer
• 5-Input Majority Gate
• 4-Input AND/OR Gate.

Quantum-dot cellular automata (QCA) is currently being investigated as an emerging alternative to conventional silicon MOSFET technology. In this paper, an efficient and optimized 4 to 1 multiplexer design for implementation in QCA is presented. The aim is to maximize the circuit density and also to focus on the layout that is to be minimal in terms of number of cells and delay. The proposed 4 to 1 multiplexer is designed using 5-input majority gate and a 4-input AND/OR gate. For verifying the functionality of the circuit, the proposed layout is simulated using QCADesigner software. The proposed design is compared with the other previous works. The results show that our design has minimal size and cell count, and it is implemented with only four clock phases. Also we have compared the proposed QCA design with conventional CMOS technology. The results confirm that the QCA design is more efficient in terms of area and clock frequency.

• 出版日期2014-1