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

Abstract

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.

Keywords

• logic design
• memristors
• logic gates
• logic circuits
• Boolean algebra
• flexible electronics
• nanoelectronics
• flexible memristor-based LUC
• network integration
• nanoscale electronic element
• variable resistance
• memristive element
• Boolean logic operations
• flexible logic unit circuit
• memristor-based logic network
• multiinput–multioutput logic operations
• multiple memristor-based LUC
• AND gate
• OR gate
• NOT gate
• NOR gate
• NAND gate
• circuit simulation