ABSTRACT
This chapter presents a digit recurrent restoring binary divider. It explains the quantum-dot cellular automata (QCA) cells and their operation as logic components. QCA is a promising emerging nanotechnology that may mitigate the problems that are anticipated for complementary metal–oxide–semiconductor due to the continued reduction of feature sizes. The chapter presents the restoring binary divider design. It provides an implementation of the array restoring dividers using the proposed method. The chapter also presents the simulation results and analysis of the designs and the summary. High-level circuit design is needed to keep pace with the changing physical characteristics. The designs in the chapter use several clock zones, and the computations are performed sequentially in the same order as that of clock zones. The design of high-speed iterative QCA arrays for parallel division uses a large amount of replicated units to reduce the number and size of QCA wires.
