Memristor-Based Volistor Gates Compute Logic with Low Power Consumption

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• 作者：Muayad Aljafar ; Paul Long ; Marek Perkowski
• 刊名：BioNanoScience
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：6
• 期：3
• 页码：214-234
• 全文大小：2,013 KB
• 刊物主题：Circuits and Systems; Biophysics and Biological Physics; Nanotechnology; Biomaterials;
• 出版者：Springer US
• ISSN：2191-1649
• 卷排序：6

文摘

We introduce a novel volistor logic gate which uses voltage as input and resistance as output. Volistors rely on the diode-like behavior of rectifying memristors. We show how to realize the first logic level, counted from the input, of any Boolean function with volistor gates in a memristive crossbar network. Unlike stateful logic, there is no need to store the inputs as resistances, and computation is performed directly. The fan-in and fan-out of volistor gates are large and different from traditional memristor circuits. Compared to solely memristive stateful logic, a combination of volistors and stateful inhibition gates can significantly reduce the number of operations required to calculate arbitrary multi-output Boolean functions. The power consumption of volistor logic is computed and compared with the power consumption of stateful logic using the simulation results obtained by LTspice—when implemented in a 1 × 8 or an 8 × 1 crosspoint array, volistors consume significantly less power.KeywordsMemristive Crosspoint arrayLogic computationMemristive crossbar array Rectifying memristorStateful inhibitionVolistor logic