Flexible memristor‐based LUC and its network integration for Boolean logic implementation

Memristor is a nanoscale electronic element with variable resistance that depends on the amount and direction of the charge passing through it. As a promising candidate, this memristive element opens up a new approach for the implementation of Boolean logic operations. In this study, a flexible logic unit circuit (LUC) based on a practical memristor model is proposed, which is able to perform the AND, OR, NOT, NOR, and NAND gate operations by different switch settings. Unlike existing memristor-based logic implementation, the initialisation is not necessary for the proposed method, and the total delay can be effectively reduced, especially for time-sequence inputs. Furthermore, the concept of the memristor-based logic network is developed by multiple memristor-based LUCs connected in series and parallel. The circuit simulation demonstrates that the presented logic network is capable of realising multi-input-multi-output logic operations with compact structure, high efficiency, and sufficient accuracy.

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