Logic Design Using Memristors: An Emerging Technology

This paper provides an introduction to memristor, which is considered as the fourth circuit element along with resistor, inductor and capacitor. Memristors possess some unique properties, i.e. it can change the resistance under voltage control and can retain its value even after the voltage is withdrawn. Another property of memristors is their small feature size which makes them useful for design of ultra-compact memory systems. In addition, the resistive switching property of memristors allows to execute logic primitives and thus can also be used for implementing logic functions using various logic design styles studied in this paper. The paper also discusses memristor fabrication, circuit models, methods for implementing logic functions, and the various computing methodologies that can be used viz. nearmemory computing and in-memory computing.