Complementary Resistive Switch-Based Arithmetic Logic Implementations Using Material Implication
Complementary Resistive Switch-Based Arithmetic Logic Implementations Using Material Implication
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DOI：
10.1109/tnano.2015.2504841
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发表时间：
2016
影响因子：
2.4
通讯作者：
Yuanfan Yang;J. Mathew;S. Pontarelli;M. Ottavi;D. Pradhan
中科院分区：
文献类型：
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作者：
Yuanfan Yang;J. Mathew;S. Pontarelli;M. Ottavi;D. Pradhan
忆阻器被认为是下一代数字系统最有前途的未来构建模块之一。本文重点介绍了使用忆阻器实现逻辑和算术单元的具体方法。特别是，我们提出了一套互补电阻开关（CRS）为基础的有状态逻辑操作，使用材料的含义，提供实现逻辑电路所需的基本逻辑功能。所提出的解决方案受益于交叉开关实现的逻辑中的潜路径电流的指数减小。本文还提出了一个封闭形式的寄生电流的表达式，并分析了所提出的逻辑块的行为上的设备变化的影响。我们的技术，在文献中提出的其他类似的技术，需要几个连续的步骤来执行计算。然而，在本文中，我们表明，只需要三个步骤来实现N输入的NAND门，而以前提出的基于忆阻器的有状态逻辑需要N + 1个步骤。通过cadence spectre电路仿真器对多个逻辑电路进行仿真，验证了该方法的有效性。最后，我们扩展了这种方法的算术电路与一个8位加法器和一个4位乘法器。
Memristors are considered among the most promising future building blocks of next-generation digital systems. This paper focuses on specific ways to implement logic and arithmetic unit using memristors. In particular, we present a set of complementary resistive switching (CRS)-based stateful logic operations that use material implication to provide the basic logic functionalities needed to realize logic circuits. The proposed solution benefits from the exponential reduction in sneak path current in crossbar implemented logic. This paper also presents a closed-form expression for sneak current and analyzes the impact of device variation on the behavior of the proposed logic blocks. Our technique, as other similar techniques proposed in the literature, requires several sequential steps to perform the computation. However, in this paper, we show that only three steps are required for implementing N input nand gate, whereas previously proposed memristor-based stateful logic needs N + 1 steps. We validated the effectiveness of our solution through cadence spectre circuit simulator on a number of logic circuits. Finally, we extended this approach for arithmetic circuits with an 8-bit adder and a 4-bit multiplier.