论文部分内容阅读
由于互补金属氧化物半导体(CMOS)器件尺寸的限制,量子元胞自动机(QCA)成为有望替代CMOS的新兴纳米器件。量子元胞自动机具有超低功耗、超高速度和高密度结构的潜在优势。提出了一种新型的同或门结构,在面积、延迟、复杂度及功耗方面相较于之前的结构均存在优势。所提出的新型同或门结构仅使用28个面积为0.02μm~2的QCA元胞,延迟仅为0.75个时钟周期。为了检验提出的设计在大型复杂QCA电路中的性能,实现了4,8和16位的奇偶校验器电路。模拟结果表明,所设计的电路性能各方面均优于先前的设计。
Due to the size limitations of complementary metal-oxide-semiconductor (CMOS) devices, Quantum-cellular automata (QCA) is emerging as a promising nanodevice for CMOS. Quantum cellular automata have the potential advantages of ultra-low power, ultra-high-speed and high-density structures. A new type of same-or-gate structure is proposed, which has advantages over the previous one in terms of area, delay, complexity and power consumption. The proposed new conformal or gate structure uses only 28 QCA cells with an area of 0.02 μm to 2 with a delay of only 0.75 clock cycles. To test the performance of the proposed design in large, complex QCA circuits, 4, 8, and 16-bit parity circuits were implemented. Simulation results show that all aspects of circuit performance are better than the previous design.