Memristor logic gates pdf

Memristor has immense performance in terms of size and power dissipation. A staircase structure for scalable and efficient synthesis. This paper discusses memristors in the context of digital logic synthesis. Hybrid memristorcmos memos based logic gates and adder circuits. Several research groups elaborated memristorbased logic gates. We implement the programming circuit to update the threshold logic cell and analyze. Adder circuits using mrl are explained in section iv. Several approaches for memristor based logic have been proposed, e. Disclosing the secrets of memristors and implication logic jens burger. The memristor technology can also be used in designing lowenergy logic circuits. Section iii discusses memristor ratioed logic mrl and its use in designing various logic gates.

Pdf on the robustness of memristor based logic gates. This makes up for the memristor s slow operation speed and may relate to how neurons do a similarlylarge computation with such slow operations speeds. Programmable memristive threshold logic gate array arxiv. The contrast shows that a memristor acts like an inductor under some conditions. Figure5shows the schematic of the programming circuit 34. View the article pdf and any associated supplements and figures for a period of 48 hours. Apr 12, 2016 this paper introduces a novel design of basic ternary logic gates using memristor, which is a set of and, or, inverters, nor, and nand gates. Reprogrammable logic in memristive crossbar for inmemory. Lncs 7956 boolean logic gates from a single memristor via. Reconfigurable tlg built with memristor can lead to changes in programmable analog circuits. The polarity is represented by the thick line in the memristor symbol. If someone were to intergrate an eeprom into a full grid of transmission gates, different logic functions could be microcoded. Although historically higher performance has been the main motivation behind the cmos.

Memristors have been suggested as a novel route to neuromorphic computing based on the similarity between them and neurons specifically synapses and ion pumps. The logical operation of basic logic gates can be implemented practically using memristor and cmos. I have also analyzed the transient response of logic gates designed using memos logic circuits. The memristor logic has already shown advantages in the area and power consumption. Memristor is the fourth basic twoterminal passive circuit element apart from well known resistor, capacitor and. This opens up interesting possibilites for programmable logic.

Being that this memristor controller can store and process data, a basic cpu of sorts could be made with an x by x sized grid of these controllers. Implementation of unbalanced ternary logic gates with the. Lightgated memristor with integrated logic and memory. In this paper, a flexible logic circuit composed of a spintronic memristor and complementary metaloxidesemiconductor cmos switches is proposed for the implementation of the basic unbalanced ternary logic gates, including the nand, nor, and, and or gates. Memristors combine memory, logics set in one device. The logical state in a magic gate is represented as a resistance, where the high and low resistances are considered, respectively, as logical zero and one for simplicity, the resistance of logical zero and logical one is considered, respectively, as. While memristor circuits have benefits, the nature of the memristor logic circuit brings some new challenges to logic synthesis. Boolean logic can also be implemented with majority gates built from memristors or memristive systems in. Some of these approaches include memristorsasdrivers mad gates, hybridcmos gates, magic. Reconfigurable threshold logic gates using memristive devices. The ternary logic is a promising alternative to the.

Pinched hysteresis loop of memristor represents the currentvoltage characteristics of a linear ion drift tio2 memristor. The proposed circuits do not require refreshment like the previously published circuits and are not initial state dependent because the memristors switch between the low resistance and high resistance states according to each input. Memristorcmos memos logic based adder circuit that can be used in based logic computational architectures. Cmos logic is good, so why bother with memristor logic. Index termsimply, inmemory computing, memristive systems, memristor, memristoraided logic magic, stateful logic. Home conferences aspdac proceedings aspdac 19 a staircase structure for scalable and efficient synthesis of memristoraided logic. A staircase structure for scalable and efficient synthesis of memristoraided logic. What is memristor know all about memristor technology. The ternary logic is a promising alternative to the conventional binary logic design technique. Induced multimode photoluminescence switch for sequential logic gates in a photoactive coordination cage.

Memristors combine memory, logics set in one device ars. Cmos nonvolatile xor boolean logic block with one memristor and four voltage. Here, we propose and demonstrate a memristive device memlogic memory logic as a nonvolatile switch of logic operations integrated with memory function in a single lightgated memristor. However, most of the twoterminal memristive devices have fixed functions once made and cannot be reconfigured for other situations. The paper also discusses memristor fabrication, circuit models, methods for implementing logic functions, and the various computing methodologies that can be. We propose that using spiking logic, either in gates or as neuronanalogues, with plastic rewritable connections between them, would allow the building of a neuromorphic computer. Index termsmemristors, memristive systems, logic gates, nonvolatile logic computing, control circuit, beyond cmos computing, memristor control circuit.

The imemcomp intelligent memristive computing gates are a family of logic gates based on the rram resistive random access memory devices. Pdf memristors are new passive circuit elements with interesting nonlinear, analog, and memory. The most popularized approach is the imply operation, most commonly known from hp labs groundbreaking study. Boolean logic gates from a single memristor via lowlevel sequential logic ellagale,bendelacycostello,andandrewadamatzky unconventionalcomputinggroup,universityofthewestofengland. The logic gates are designed as cmos gates or as programmable majority logic array pmla based on goto pairs as logic gates 8.

Memristive switches enable stateful logic operations via. On the production testing of memristor ratioed logic mrl. Due to the excellent scaling prospects and nonvolatile. The fourth elemental circuit component will both compute and store data, but on its own terms. Therefore, the total number of nmos and memristors used552. This dissertation will focus first on the study of various memristor models, then the implementation of the various models studied will be addressed, then a single model will be chosen that better fits the requirements necessary to develop logic gates. Specifically, the nonvolatile logicinmemory function results in. Practical memristor came into picture just few years back and instantly became the topic of interest for researchers and scientists. Boolean logic gates from a single memristor via lowlevel sequential logic. This makes up for the memristors slow operation speed and may relate to how neurons do a similarlylarge computation with such slow operations speeds. Since, the binary system is considered as a special case of the ternary system. Lncs 7956 boolean logic gates from a single memristor. Several logic gates extended from magicmemristoraided.

Pdf boolean logic gates from a single memristor via low. As a result of employing mad gates in memristorbased adders, such as ripple carry adders, carry select adders, conditional sum adders and carry lookahead adders, the number of delay steps may be less than half than the number of delay steps required in traditional cmos implementations of adders. In the quest for the reconfiguration of single logic device and the implementation of the complete logic functions, a novel. Hybrid memristorcmos memos based logic gates and adder. Pdf memristors have been suggested as a novel route to neuromorphic computing based on the similarity between them and neurons. Memristorbased volistor gates compute logic with low. But experimentally realizable memristor are not ideal. Magicmemristor aided logic magic requires only memristors within the logic gates. In this paper, we proposed a fundamental hybrid memristor. Threshold logic gates are interesting candidate for logic implementation using memristivecmos circuits. By using the memristors memory to both store a bit and perform an operation with a second input bit, simple boolean logic gates have been built with a single. Abstractin this paper, we present a resistive switching memristor cell for implementing universal logic gates.

Keywordsmemristors, memristive systems, logic gates, nonvolatile logic computing, control circuit, beyond cmos computing, memristor control circuit. In this paper, the imply logic gate, a memristorbased logic circuit, is described. Mrl is a family that uses memristors along with cmos inverters to design logic gates. However, since this study, numerous other approaches have been proposed, which offer differing properties and tradeoffs.

Abstractthis paper proposes a hybrid cmosmemristor implementation of a programmable threshold logic gate. Memristors are novel devices, useful as memory at all hierarchies. The proposed memristor based circuit replaces the large resistors by employing. This logic consists of a memristors acting as weights to the inputs followed by threshold operations emulating neuronal synapse. Boolean logic gates from a single memristor via lowlevel. Giving a brief overview about memristor characteristics it is explained how they can be used in digital logic. Ni multisim andexperimental validation implitation of. A novel design for memristor based logic gates and. Recent developments in memristor technology c 1 have stimulated renewed interest in using switching devices for developing threshold logic gates. Before we begin with the logic gates themselves, lets define the polarity of a memristor. The resistiveload mosfetbased ternary logic gates have already been proposed. Test escapes may take place while testing faults in the memristors. Memristorcmos logic and digital computational components. While very dense and potentially energydelay efficient, memristive pla circuits suffer from signal degradation after each logic stage.

Recently, it has been demonstrated that memristors can be utilized as logic operations and memory elements. Twoinput nand and nor gates are investigated using the stuck at fault model for the memristors and the fivefault. Memristive switches enable stateful logic operations. Reconfigurable threshold logic gates using memristive. It will map to digital logic operation and how this can be used with boolean logic. Magnetic skyrmion, a nanosized spin texture with topological property, has become an area of significant interest due to the scientific insight that it can provide and also its potential impact on applications such as ultralowenergy and ultrahighdensity logic gates. Apr 05, 2016 magicmemristor aided logic magic requires only memristors within the logic gates. Memristorcntfet based ternary logic gates sciencedirect. The paper also discusses memristor fabrication, circuit models, methods for implementing logic functions, and the various computing methodologies that can be used viz. A novel design for memristor based logic gates and circuits. The concept can be extended in realization of other key logical functions and computational elements such as the exclusive or xor fig. Other logic gates can be realized with imply gates, most easily not, nand, and or. The fourth basic component, the memristor, had remained stuck in the domain of theorya nice idea that even the theorists thought. First reason if the memristorbased memory is there, we can do logic in the same price.

Memristor based unbalanced ternary logic gates springerlink. Jan 28, 2009 logic circuits that program themselves. Disclosing the secrets of memristors and implication logic. In classical stateful memristive circuits, logic signals utilize resistances on inputs and outputs, meaning the previous resistance state of the memristor affects the. Twoinput nand and nor gates are investigated using the stuck at fault model for the memristors and the fivefault model for the transistors. Memos use cmos 180 nm process with memristor to compute boolean logic operations. The simulations performed demonstrate the truth table for all logic gates and same have been verified experimentally on. The key element of the proposed cmos inverter memristor circuits is a memristive 1, 8, 9 device that exhibits. Several approaches for memristorbased logic have been proposed, e. The proposed memristorbased circuit replaces the large resistors by. Memristorbased volistor gates compute logic with low power. Memristorbased adders using memristorsasdrivers mad gates.

In this paper, several logic gates extended from magicmemristor aided logic, including imp, xnor, nand and or logic gates, are presented. Pdf digital logic synthesis for memristors researchgate. The cmos gates internally used standard voltages for this generation, and the logic computations were done at logic voltage rails of 0 and 3. Perkowski are with the department of electrical and computer engineering, portland. A memristor is a twoterminal device with a variable resistance, which can be used in many applications including neuromorphic systems, logic circuits and digital memory. Figure 1 from hybrid memristorcmos memos based logic gates. The performance comparison between the memristor imp logic and conventional cmos transistorbased logic is shown in table 1. Certain works concentrate on the robustness of memristor based logic circuits 9 and logic gates 10, but disregards any operational or switch defects. On the production testing of memristor ratioed logic mrl gates. The state input pin xd is used to sneak into the memristor state, but all memristor programming is done through the application of voltage pulses. This paper introduces a novel design of basic ternary logic gates using memristor, which is a set of and, or, inverters, nor, and nand gates. Design and implementation of basic logic gates and adder. For 12 and gates,we require 48 memristor and 24 nmos.

There are numerous approaches to implementing logic with memristors. Incorporated within an appropriate circuit17,18, memristive switches can thus perform stateful logic operations for which the same devices serve simultaneously as gates logic and latches19. However, although these have smaller chip areas and lower leakage power than conventional cmos logic gates, they often have higher power dissipation for threshold logic gates. Voltage controlled memristor threshold logic gates arxiv. Pdf memristorbased material implication imply logic. In 23, the authors proposed a methodology to implement logic functions using a sequence of material implication operations. The decoders outputs are connected to binary logic gates such as and and or gates. These two states can correspond to storage of logic 0 and logic 1 in the memristor. Design of combinational logic circuits using memristor. Memristor cmos nor logic a memristor multiinput nor logic b 2input memristor cmos nor and c simulation result of 2input memristor cmos nor gate.

However, both material implication and boolean logic have been addressed for the memristor crossbar. Section iii discusses memristor ratioed logic mrl and its use in designing various logic. In this gate, memristive devices implement ratioed dioderesistor logic, similar fan while cmos circuitry is used for signal amplification and inversion. In addition, we investigate the mathematical analysis of the proposed memristor ternary logic gates circuits. Memristorbased material implication imply, memristor threshold logic 14, memristoraided logic magic 15 and memristors. Memristor cmos memos logic based adder circuit that can be used in based logic computational architectures. Cmos logic as well as the implementation of a builtin selftest circuit to test the.

Section ii provides an overview of the memristor and its working. Pdf hybrid memristorcmos memos based logic gates and. This paper focuses on the production testing of memristor ratioed logic mrl gates. Another approach is to use memristors as the primary. Abstractmemristors have become interesting to many research areas within the last years. The memristor model used in this paper is based on a memristor device model by c. As discussed above, the basic gate in a binary memristor circuit. In the case of the inorganic memristor, the scheme is the same, but with a symbol representing conventional memristor. Introduction i n recent years, the concept of a memristor, originally.