Nonvolatile Boolean logic operational circuit and operation method thereof

Abstract

The invention discloses a nonvolatile Boolean logic operational circuit and an operation method thereof. The Boolean logic operational circuit comprises two input ends, one output end, a first variable resistance element M1 and a second variable resistance element M2; the cathode of the first variable resistance element M1 servers as the first input end of the logic operational circuit, the cathode of the second variable resistance element M2 serves as the second input end of the logic operational circuit, and the anode of the second variable resistance element M2 serves as the output end of the logic operational circuit after being connected with the anode of the first variable resistance element M1. Through operating the nonvolatile Boolean logic operational circuit, at least 16 kinds of basic Boolean logic actions can be realized. Through a logic circuit composed of two variable resistance elements, at least 16 kinds of basic Boolean logic operations can be realized according to requirements, and the logic operation results are directly stored in the resistance states of the variable resistance elements so that the calculation and storage integration is realized; the logic circuit needs a few of devices and is easy to operate, and therefore, the calculating power consumption and time can be saved, and the calculating efficiency is improved.

Description

technical field [0001] The invention belongs to the field of digital circuits, and more specifically relates to a non-volatile 16 basic Boolean logic operation circuit and an operation method thereof. Background technique [0002] Memristor is considered as the fourth basic circuit element besides resistors, capacitors, and inductors. It can memorize the amount of charge flowing through it, and its resistance value can be changed by controlling the change of current. The high-resistance state and low-resistance state of memristor can be used to store "0" and "1" for information storage, and has the advantages of non-volatility, low power consumption, high speed, and high integration. In addition, memristors have also been proposed to enable state logic operations, the results of which are stored directly in the resistive state of the device. That is to say, the use of memristors can complete calculation and storage in the same device or circuit, realize the fusion of inform...

AI Technical Summary

Problems solved by technology

[0003] The circuit shown in the Chinese invention patent "A Logic Gate Circuit Based on Memristor" (application number: 201210234665.X, application date: July 9, 2012) uses 3 memristors and 1 unidirectional guide A pass element and a resistor can realize AND logic and OR logic. However, the device cannot realize complete 16 kinds of Boolean logic, and the state stored in the memristor adopts the current readout method, which is not conducive to the cascading of digital logic.

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