Quantum-dot cellular automata (QCA) is an emerging technology to design logic circuits at the nanoscale level. It has the potential to replace the complementary metal oxide semiconductor (CMOS) technology. In this paper, an optimal, single layered, single clocked 1:2 demultiplexer (DeMux) circuit is proposed using 19 QCA cells in QCA technology. Proposed 1:2 DeMux circuit is further utilized for designing of 1:4 DeMux and 1:8 DeMux circuits using 72 and 206 QCA cells respectively. DeMux is an important module at the receiver side in the communication system. The performance of the proposed DeMux circuits are checked and compared with the available similar designs using QCA Designer-E. Proposed 1:2 DeMux decreases 79.17% layout cost and 50% clock latency as compared to the best reported work in the literature. Proposed 1:4 DeMux reduces 48.57% cells count and 40.63% total area while proposed 1:8 DeMux cuts 63.54% cells count and 64.54% total area as compared to best reported similar works in the literature. Energy dissipation pays an important role to design the energy efficient circuits at nanoscale level. Energy dissipations are estimated using QCA Designer-E and QCA Pro tools. Proposed 1:2 DeMux saves 8.20% total energy dissipation as compared to the existing design.

中文翻译：

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使用 QCA 纳米技术和能量耗散分析的 1:2n 解复用器的优化设计

量子点元胞自动机（QCA）是一种在纳米级设计逻辑电路的新兴技术。它有可能取代互补金属氧化物半导体 (CMOS) 技术。在本文中，使用 QCA 技术中的 19 个 QCA 单元提出了一种最优的、单层、单时钟的 1:2 解复用器 (DeMux) 电路。建议的 1:2 DeMux 电路进一步用于设计分别使用 72 和 206 个 QCA 单元的 1:4 DeMux 和 1:8 DeMux 电路。DeMux 是通信系统中接收端的一个重要模块。使用 QCA Designer-E 检查建议的 DeMux 电路的性能，并将其与可用的类似设计进行比较。与文献中报道的最佳工作相比，建议的 1:2 DeMux 降低了 79.17% 的布局成本和 50% 的时钟延迟。建议的 1:4 DeMux 减少了 48。与文献中最佳报道的类似作品相比，57% 的细胞计数和 40.63% 的总面积，而提议的 1:8 DeMux 减少了 63.54% 的细胞计数和 64.54% 的总面积。能量耗散对于设计纳米级节能电路起着重要作用。使用 QCA Designer-E 和 QCA Pro 工具估计能量耗散。与现有设计相比，提议的 1:2 DeMux 节省了 8.20% 的总能量耗散。