A Methodology for Standard Cell Design for QCA

Reis, Dayane; Campos, Caio Araujo T.; Soares, Thiago R. B. S.; Neto, Omar P. Vilela; Torres, Frank Sill

doi:10.1109/iscas.2016.7538997

Cited by 43 publications

(10 citation statements)

References 4 publications

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“…Figure 7 presents the circuit design that, due to the essential synchronization features of NML, need some wires to collect the sum result bits and propagate the carry-out bits between the sum stages, as shown in the insets. The adder has seventeen inputs: Cin, A[0] to A [7], and B[0] to B [7]. The first represents the bit carried in from the previous less significant stage in 1-bit adder cascades.…”

Section: Resultsmentioning

confidence: 99%

“…Beyond, they can comprise the physical implementation layout favoring the placement and routing processes. This paper, inspired in a former QCA work [7], presents the NMLib, an NML standard cell library, implemented as an extension of the tool NMLSim, to build circuits with effortless processes. Here, we jointly present logical and connecting elements since, unlike traditional technologies, in NML, these two classes of elements are composed of the same basic building blocks.…”

Section: Introductionmentioning

confidence: 99%

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NMLib: A Nanomagnetic Logic Standard Cell Library

Luz

Nacif

Ferreira

et al. 2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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The Nanomagnetic Logic (NML) is a promising new technology that can build low-power devices at room temperature. Furthermore, this technology allows mixing logic and memory on the same device. The creation of Electronic Design Automation (EDA) tools and flows is an essential step towards developing NML for integrated designs. There is plenty of room for creating new EDA methodologies for this kind of emerging nanotechnologies since the scarce number of works in this field. Standard cells is an important step in this context since they strongly relate to the routing and placement algorithms. This work presents NMLib, an NML cell library developed for the NMLSim 2.0 simulator. In contrast to CMOS, the NML features require logic cells and interconnection cells, since all circuit is developed using the same building block. Moreover, we present a full-adder, and a ripple carry adder circuit designs using NMLib to demonstrate NMLib feasibility.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

NMLib: A Nanomagnetic Logic Standard Cell Library

Luz

Nacif

Ferreira

et al. 2021

2021 IEEE International Symposium on Circuits and Systems (ISCAS)

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“…The same criteria are employed to comprehensively assess the performances of the proposed designs to compare with counterparts in previous design methods [11][12][13][14] (There is no data about the design of full-adder in 2DDWave). Table 1 lists the comparisons of physical properties of full adders and 8-bit serial adders in terms of module count, clock…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…First, several design methods that can be categorized into modular design in QCA have been proposed. [11][12][13][14][15] The modules in these methods almost only contain three-input majority gate (or two input AND gate and OR gate), inverter, and wire, which cannot cater to increasingly complex circuits. Hence, modules that can execute special functionalities have been proposed, such as a five-input majority gate to greatly reduce the logic depth and hardware overhead.…”

Section: Introductionmentioning

confidence: 99%

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Module‐based design method using clocking scheme for quantum‐dot cellular automata

Deng

Xie

Zhang

et al. 2021

Circuit Theory & Apps

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Quantum-dot cellular automata (QCA) is a field-coupled nanotechnology with unique computing paradigms to be one of the strong alternatives to replace the traditional complementary metal oxide semiconductor (CMOS) in the future in theory. With the development of its fabrication technique and increasing circuit scale, the modular design method of QCA circuits is promoted, which consists at least of two connotations: designing appropriate modules for circuits and allocating applicable clock to circuits. In this paper, a module-based design method using a clocking scheme (MCS) in QCA is proposed, which can be categorized into the modular design methodology. A complete module

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