Quantum-dot cellular automata (QCA) has the capability to scale down beyond the range of CMOS. Besides wide acceptance of QCA, it suffers from different challenges, regular structure and configurability is one of them. The disparate design in QCA increases design complexity as well as cost. The disparity of design needs different clocking layout for the correct propagation of signals. Moreover, the interconnection of these non-symmetric designs also increases the routing difficulty in a specific, realistic clocking scheme. In this paper, configurable memory structures are investigated in QCA. First of all, a configurable level triggered flip flop (ConFF) is realized. The same ConFF is utilized to design configurable dual edge triggered flip-flop (EConFF) with some minor modification. Nine different logic functions can be produced using the same EConFF circuit which is not found in any existing QCA circuit.The proposed configurable structures are verified with QCADesigner 2.0.3.

量子点元胞自动机（QCA）具有缩小到CMOS范围以外的能力。除了被QCA广泛接受外，它还面临着不同的挑战，规则的结构和可配置性是其中之一。QCA中的不同设计增加了设计复杂度和成本。设计的差异需要不同的时钟布局以正确传播信号。此外，这些不对称设计的互连还增加了特定，现实的时钟方案中的布线难度。本文在QCA中研究了可配置的存储器结构。首先，实现了可配置的电平触发触发器（ConFF）。利用相同的ConFF设计了可配置的双边触发触发器（EConFF），并做了一些小改动。