Design of subtractor using nanotechnology based QCA

Lakshmi, S. Karthigai; Athisha, G.; Karthikeyan, M.; Ganesh, C.

doi:10.1109/icccct.2010.5670582

Cited by 24 publications

(2 citation statements)

References 13 publications

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“…It was designed by 178 cells with dimensions of 0.205 μm in three layers. [13] Figure 4. Full-subtractor circuit related to the design [13].…”

Section: Introductionmentioning

confidence: 99%

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Design and Simulation Full-Subtractor Based of Reversible logic in Quantum Cell Automata Technology

Azimi¹,

Saghai²,

Maniei³

et al. 2022

Preprint

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Quantum cell automata (QCA) is a nanotechnology that uses a transistor-free structure to design digital circuits and overcome the limitations listed for CMOS circuits. The computing circuits that make up the bulk of computers can be designed and using this technology. Subtractors are a big part of computational circuits. This research deals with the design of a subtractor that due to the innovation in the design of this circuit and the novel arrangement of quantum cells of its kind has caused the number of cells used in the design of the circuit to reach its lowest value compared to previously designed circuits. The size of the circuit as well as the loss power are minimized compared to the circuits designed by the subtractors. Another trait clears of this circuit compared to many previous designs is its single-layer design, which reduces latency and noise in the output waveform. The circuit designed by the QCADesigner simulator is tested and simulated inadition the results are displayed in the simulated waveform. Also, the results of calculations for power dissipation in each QCA cell were evaluated by QCAPro software, which is a powerful tool for estimating power loss simulation. It has less implementation and level (single layer) than Previous designs.

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“…It was designed by 178 cells with dimensions of 0.205 μm in three layers. [13] Figure 4. Full-subtractor circuit related to the design [13].…”

Section: Introductionmentioning

confidence: 99%

“…[13] Figure 4. Full-subtractor circuit related to the design [13]. The subtractor block diagram is shown in figure (5).…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation Full-Subtractor Based of Reversible logic in Quantum Cell Automata Technology

Azimi¹,

Saghai²,

Maniei³

et al. 2022

Preprint

View full text Add to dashboard Cite

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A new applicable and multilayer design of nanoscale adder–subtractor using quantum‐dots

Gao

Mohammed

2022

Concurrency and Computation

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Quantum-dot cellular automata (QCA) is a technique that can substitute silicon transistors. Besides, the computational architecture and systems are focused on nanoscale QCA in response to industry demands for energy-efficient and high-performance computing systems. Because of the importance of adder/subtractor designs in logical circuits, a novel QCA-based adder/subtractor design is suggested in this study. A full adder is developed first, followed by a full subtractor. These QCA-based adder/subtractor designs are simple, ultra-efficient, constructive, and have easy input and output access.To create the required output, these circuits make use of quantum technology's intrinsic features. The QCADesigner program is used to assess the simulation findings of the recommended designs. Additionally, these designs are investigated in terms of complexity, clocking, cells, and latency. It shows that the recommended design is more efficient than standard designs regarding the area, cell count, and cost. These circuits are among the circuits in which easy access to inputs and outputs is provided, and their connection to other circuits makes them more practical. In addition to the above, the low number of cells, high speed, and easy implementation are among the innovations of the presented circuits. K E Y W O R D Sfull-adder, QCA, QCADesigner, quantum-dot cellular automata, subtractor INTRODUCTIONCMOS circuits may be made in a small amount of time, leading designers to look into it as a business strategy. 1 Documentation of leakage current and high-power usage in CMOS devices has surfaced in past years. As a result, the CMOS technological revolution must occur. Moore's law is followed by CMOS technology, which is based on today's conventional transistors. 2 Enhancing the transistors in a chip in CMOS technology is undesirable. However, since micro and nano-structures have gotten much attention recently, 3 a strategy at the nanoscale can demonstrate the ability to change Moore's law. That strategy is quantum-dot cellular automata (QCA) technology, which broke Moore's law by rapidly substituting innovative technology with CMOS. [4][5][6] In the QCA technology, several studies are conducted on the layout of different digital circuits like basic logic gates, 7 adders, 8,9 encoders, 10 subtractors, 11-13 multiplexers, 14-17 dividers, 18,19 and memory circuits. 20,21 Meanwhile, adders and subtractors hold a unique place in digital systems because they significantly influence their performance. 22,23 It is worth noting that developers strive to research a wide range of challenges, including complexity and limited occupancy space. However, owing to the novelty of this technology, there are still several significant hurdles that have yet to be overcome. 24

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Multioperative reversible gate design with implementation of 1‐bit full adder and subtractor along with energy dissipation analysis

Riyaz

Naz

Sharma

2020

Circuit Theory & Apps

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Summary Nanotechnology and very large‐scale integration (VLSI) fabrication have a reflective productivity. The growth of one demands the growth of the other. In nanotechnology, quantum‐dot cellular automata (QCA) secures as the best alternative for replacement of complementary metal‐oxide semiconductor (CMOS) technology for integrated circuit (IC) fabrication. This paper presents an integration of the two domains wherein a novel ultraefficient, multioperative 3 × 3 universal reversible gate, Sadat Farah Vijay (SFV)‐QCA, is proposed and implemented in QCA technology using majority voter approach. SFV‐QCA gate is redesigned and restructured using precise QCA cell interaction for optimization. The basic logic gates are implemented using the proposed SFV‐QCA gate to validate its universality. All the 13 standard Boolean functions are implemented using SFV‐QCA to demonstrate its multioperation nature. One‐bit full adder and subtractor circuits are designed using SFV‐QCA gate and compared with the previous works. The analysis of the SFV‐QCA gate shows that it is ultraefficient and more robust as compared to previous works. Energy dissipation analysis of the designs has also been presented, and the investigation establishes minimum energy dissipation of the designs that confirms ultrahigh efficient designs.

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Design of subtractor using nanotechnology based QCA

Cited by 24 publications

References 13 publications

Design and Simulation Full-Subtractor Based of Reversible logic in Quantum Cell Automata Technology

Design and Simulation Full-Subtractor Based of Reversible logic in Quantum Cell Automata Technology

A new applicable and multilayer design of nanoscale adder–subtractor using quantum‐dots

Multioperative reversible gate design with implementation of 1‐bit full adder and subtractor along with energy dissipation analysis

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