An Optimized Three-Level Design of Decoder Based on Nanoscale Quantum-Dot Cellular Automata

作者：Seyedi Saeid; Navimipour Nima Jafari^*

来源：International Journal of Theoretical Physics, 2018, 57(7): 2022-2033.

DOI：10.1007/s10773-018-3728-0

• Quantum-dot cellular automata (QCA)
• Decoder
• Low power
• Cell number
• Nanoelectronics

Quantum-dot Cellular Automata (QCA) has been potentially considered as a supersede to Complementary Metal-Oxide-Semiconductor (CMOS) because of its inherent advantages. Many QCA-based logic circuits with smaller feature size, improved operating frequency, and lower power consumption than CMOS have been offered. This technology works based on electron relations inside quantum-dots. Due to the importance of designing an optimized decoder in any digital circuit, in this paper, we design, implement and simulate a new 2-to-4 decoder based on QCA with low delay, area, and complexity. The logic functionality of the 2-to-4 decoder is verified using the QCADesigner tool. The results have shown that the proposed QCA-based decoder has high performance in terms of a number of cells, covered area, and time delay. Due to the lower clock pulse frequency, the proposed 2-to-4 decoder is helpful for building QCA-based sequential digital circuits with high performance.

• 出版日期2018-7