Current Comparator-Based Reconfigurable Adder and Multiplier on Hybrid Memristive Crossbar

Memristors have shown significant promise both in logic synthesis and memory-subsystem design. A 2D-crossbar of memristors can be used to store multi-valued memory states by utilizing the analog variation of current-induced resistance through memristor cells. The integration of CMOS components with memristor cells can further widen their design space for handling various complex systems. A crossbar built with CMOS-memristor hybridization supports a potential platform that enables computation-in-memory (CIM). In this work we propose a logic system based on differential currents for implementing an ADDER and a MULTIPLIER on a hybrid-memristor crossbar network. Simulation studies demonstrate that the proposed design reduces both memristor cost and computation-cycle time compared to previous approaches.