Realization of Memristor-aided Logic Gates with Analog Memristive Devices

Abstract

Computation based on the von Neumann architecture suffers from the data transfer between computation unit and memory, i.e. the so-called von-Neumann bottleneck. Thus, new computing paradigms emerge leveraging in-memory computing (IMC). Stateful memristor aided logic (MAGIC), which has attracted great attention in recent years, enables the realization of a functionally complete set of Boolean logic functions within a memristive memory array. Whereas typically digital-switching memristive devices are exploited, in this work, we investigate the realization of MAGIC gates using analog-switching BiFeO3 (BFO) devices. The simulation results reveal that the MAGIC NIMP gates, as proposed for a digital-switching memristive device, do not work correctly with the analog BFO devices. By studying the input drift and blocking effect while operating MAGIC NIMP gate, we propose two alternative MAGIC gates by exploiting analog memristors, i.e. a NOR gate and a -P gate.