Kiani Vosta Pezhman, Gholami Mohammad
Department of Electrical Engineering, Faculty of Electrical and Computer Engineering, Babol Noshirvani University of Technology, Babol, Iran.
Department of Electrical Engineering, Faculty of Engineering and Technology, University of Mazandaran, Babolsar, Iran.
Heliyon. 2024 Nov 7;10(22):e40238. doi: 10.1016/j.heliyon.2024.e40238. eCollection 2024 Nov 30.
Quantum-dot cellular automata (QCA) technology is another new technology in the field of nanoelectronics and quantum. With the help of this technology, basic to advanced digital circuits can be designed and implemented with low energy consumption and small area. Therefore, in this paper, a new design for a four- and eight-bit Linear feedback shift register (LFSR) or random counter, as well as a rising-edge-sensitive D flip-flop with the least possible number of cells and the smallest area, was presented. This paper first designs the proposed D flip-flop with 24 cells and an area of , so that with the help of this flip-flop it can design four and eight-bit LFSR. This flip-flop is one of the most optimal and suitable designs in terms of area and number of cells. Then, in the second step, a four-bit LFSR with 144 cells and an area of was designed with the help of the proposed flip-flop in the most optimal possible state. Also, in the third step, an eight-bit LFSR with 281 cells and an area of has been implemented for the first time in QCA technology, which is among the best possible designs. All the designs and simulations of this article were done in QCADesigner version 2.0.3 software and with QCAPro software, the energy consumption of the proposed circuits.
量子点细胞自动机（QCA）技术是纳米电子学和量子领域的另一项新技术。借助该技术，可以以低能耗和小面积设计并实现从基础到高级的数字电路。因此，本文提出了一种针对四比特和八比特线性反馈移位寄存器（LFSR）或随机计数器以及具有尽可能少的单元数量和最小面积的上升沿敏感D触发器的新设计。本文首先设计了具有24个单元且面积为[此处原文缺失面积具体数值]的拟议D触发器，以便借助该触发器设计四比特和八比特LFSR。就面积和单元数量而言，该触发器是最优化且合适的设计之一。然后，在第二步中，借助处于最优可能状态的拟议触发器设计了具有144个单元且面积为[此处原文缺失面积具体数值]的四比特LFSR。此外，在第三步中，首次在QCA技术中实现了具有281个单元且面积为[此处原文缺失面积具体数值]的八比特LFSR，这是最佳可能设计之一。本文所有设计和模拟均在QCADesigner版本2.0.3软件中完成，并使用QCAPro软件计算了拟议电路的能耗。
