In this paper, quantum-dot cellular automata (QCA) nanotechnology is introduced and employed to design some basic integrated circuit components. Compared to the traditional complementary metal-oxide semiconductor (CMOS) technology, a 24 percent reduction in size is achieved with the proposed reversible gate. Furthermore, an almost 25 percent reduction in delay and a more than 70 percent reduction in area are obtained when designing latches.

Since the basic sequential devices include not only latches but also flip-flops, the future work of this paper can be extended to the clock-triggered flip-flop and register design. From a synthesis perspective, timing constraints or violations using QCA technology, such as the setup time and hold time of the sequential logic using conventional CMOS transistors, should be further considered.