QCA circuit design of n-bit non-restoring binary array divider

The Journal of Engineering

Amjad F. Almatrood¹ 

[1] Department of Electrical and Computer Engineering , Wayne State University , Detroit , MI 48202 , USA

关键词: alternative technologies;    complementary metal-oxide semiconductor;    cell count;    CMOS;    n-bit nonrestoring;    QCA structure;    QCA designs;    three-input XOR function;    $4 \times 4$ divider;    quantum-dot cellular automate;    QCA circuit design;    binary array divider;    $3 \times 3$ NRD;   

DOI  :  10.1049/joe.2017.0375

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

The physical limitations of complementary metal-oxide semiconductor (CMOS) technology have led many researchers to consider other alternative technologies. Quantum-dot cellular automate (QCA) is one of the nanotechnologies that is being considered as possible replacements for CMOS. In this paper, a QCA circuit for an n-bit non-restoring binary array divider (NRD) is designed. The proposed divider is developed using multi-layer and a QCA structure of the three-input XOR function. Compared to the previously proposed QCA designs for NRD, the proposed design provides further reduction in cell count, latency, and area. The results for a 3 × 3 NRD show that the proposed design enables 14.8, 14.8, and 20.3% reductions in cell count, latency, and area, respectively. In addition, the proposed 4 × 4 divider achieves 5.5, 18.8, and 33.1% reductions in cell count, latency, and area, respectively, compared to the existing designs.

【 授权许可】

CC BY