Memristor logic design pdf

The most popularized approach is the imply operation, most commonly known from hp labs groundbreaking study. With the novel use of memristors in mrfpga interconnects rather than memory cells, the proposed architecture reduces the gap between fpgas and asics in area, delay and power. Through this work, we are introducing a physical implementation of a memristorbased current mode tlg mcmtlg circuit and validate its design and. Efficient erasable pufs from programmable logic and. However, previous studies have shown, that based on the working region of transistors, such as saturation or weak inversion regions, the circuit may face issues with output ranges and accuracy. There are numerous approaches to implementing logic with memristors. In this paper, the imply logic gate, a memristorbased logic circuit, is described. Design and analysis of low power hybrid memristorcmos.

Giving a brief overview about memristor characteristics it is explained how they can be used in digital logic. Dirk wouters esa ws april 2015 folie 2 the day memristor became famous. In classical stateful memristive circuits, logic signals utilize resistances on inputs and outputs, meaning the previous resistance state of the memristor affects the. The hp group has a hybrid silicon cmos memristor chip sitting on a chip tester in our lab right now, says williams. Crossbar arrays based on twoterminal resistive switches have been proposed as a leading candidate for future memory and logic applications. The circuit further includes a switch, where a node of the second memristor is connected to the switch. Index termsmemristor, artificial neural networks, threshold logic gates, insilico classifiers. The proposed logic shows better area utilization and excellent results from existing cmos logic circuits at standard 1. System design with memristor technologies pdf libribook. Memristor logic design using driver circuitry board of.

It was described and named in 1971 by leon chua, completing a theoretical quartet of fundamental electrical components which comprises also the resistor, capacitor and inductor. In each magic logic gate, memristors serve as an input with. Reprogrammable logic in memristive crossbar for inmemory. This has led to the proliferation of battery operated powerful devices and newer applications that have changed the way we communicate and live. Memristors have been suggested as a novel route to neuromorphic computing based on the similarity between them and neurons specifically synapses and ion pumps. If a negative power supply is available, the hbridge is not required. The demonstrated simulation results confirm the efficiency and the fine application of the proposed methodology. Memristorbased circuits and architectures hajim school of. The realization of imp logic by memristors was first conceived by lehtonen et al in 2009, and then experimentally demonstrated by borghetti et al in 2010. Among these logic styles, three are selected by a set of criteria and they will be further discussed. In recent years, the rram has been used as memory device and also to build logic circuit. Through this work, we are introducing a physical implementation of a memristor based current mode tlg mcmtlg circuit and validate its design and. A salient feature of memristor is that the stored data in one memristor can be applied to change the state of another memristor. Memristorbased nanoelectronic computing circuits and.

Circuit design and synthesis flow we develop methodologies to design asics and fp. Here, programming amounts to changing the value of the memristance which leads to two di. Pdf memristorbased material implication imply logic. Pdf memristorbased imply logic design procedure researchgate. Several new results on memristor modeling, memristive interconnections, logic circuit design, memory circuit architectures, computer arithmetic systems, simulation software tools, and applications of memristors in computing are presented. The implications for circuit design may be niche at the moment. Here we demonstrate a highdensity, fully operational hybrid crossbarcmos system composed of a transistor and diodeless memristor crossbar array vertically integrated on top of a cmos chip by taking advantage of the intrinsic nonlinear characteristics. The rram resistive randomaccess memory is one of the most competitive candidates of the emerging nonvolatile memory devices. Design of highspeed logic circuits with fourstep rram. We call it resistive switching threshold logic and use it to design an xor gate and larger xor circuits. Right now i am working on several projects memristor modeling, memristorbased logic design, memristor crossbar design and analysis, and computer architecture in the memristor era memoryintensive computing. Furthermore, the modularized circuit designs method is used in the new chaotic system. Memristors are novel devices, useful as memory at all hierarchies.

Memristorbased imply logic design procedure, in proc. Most manufacturers will embrace this technology only after a wellfunctioning, largescale array is clearly demonstrated. The book is replete with examples that simulate basic logic logic gates and full adder using xilinx, done by. On the other hand, extra caution needs to be paid to variability intolerant digital designs based on nondeterministic memristor logic. Various parameters including ares, delay and power dissipation are computed and compared with standard cmos 180 nm logic design. Memristorbased and and or logic gates are implemented as shown in fig. I am working on memristorbased applications both at circuit and architecture levels. The design methodology is based on a general design flow, suitable for all deterministic memristive logic families, and includes some additional design constraints to support. Abstract due to increasing demand on miniaturization and low power consumption, memristor came into existence. A kaist research team succeeded in developing an energy efficient, nonvolatile logicinmemory circuit by using a memristor. Some of these approaches include memristorsasdrivers mad gates, hybridcmos gates, magic. This class teaches systematic design methods for new technologies. This paper proposes a design method of logic circuit based on the fourstep rram. No design methodology exists, however, for memristorbased combinatorial logic.

However, several critical features of biological synapses, particularly their conductance modulation, which is both memorable and gradual, have rarely been reported. Therefore the contents of the class is the following. Here it is demonstrated that this shortterm memory works exactly like habituation e. Such a design offers a uniform cell that is configurable to perform all boolean operations, including the xor operation. Also explore the seminar topics paper on memristor with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2015 2016.

A new memristorbased 5d chaotic system and circuit. Practical implementation of memristorbased threshold logic gates. The design methodology is based on a general design flow, suitable for all deterministic memristive logic families, and includes some additional design constraints to support the imply logic family. The dynamics analysis of the new system can also demonstrate the hyperchaotic characteristics. Figure 1 shows the design of the proposed memory threshold logic cell that utilizes two input memristors r 1 and r 2. The possibility of combining the electrical properties of a memory element and a resistor in a memristor or memristive device was proposed by leon chua in 1971. Disclosing the secrets of memristors and implication logic. This design methodology is demonstrated by a case study of an 8bit imply full adder in section vi. In this paper, memristor aided logic magic family is discussed with various design considerations and novel techniques to execute logic within an mpu. Next, it overviews the stateoftheart on memristor based logic design styles. The design and analysis of adaptive synchronization for the new memristorbased chaotic system and its slave system are carried out. This voltage can be easily interpreted as a logic1 and logic 0 by any one of the sensing amplifier or comparator techniques. Memristorbased logic design memristorbased logic design performs logic operations in memristors with particular connection patterns, and expresses the boolean variable with voltage or resistance.

For the imply style, we survey the use of known logic representations including binary decision diagram bdd, andinverter graph aig, and majorityinverter graph mig for logic synthesis using memristors. By exploiting novel transport phenomena such as ion selectivity at the nanoscale, it has been shown that nanochannel systems can exhibit electrically controllable conductance, suggesting their potential use in neuromorphic devices. Physicalunclonablefunctions pufreusemodel memristor erasable pufs recon. But we are learning at a tremendous pace, discovering new things, such as the.

One possible solution to that problem could be choosing. The underlying concept of memristor is explained and provides indepth understanding of implication function. Wei lu as the building block of semiconductor electronics, field effect transistor fet, approaches the sub 100 nm regime, a number of fundamental and practical issues start to emerge such as short channel effects that prevent the fet from operating properly and. For example, a circuit to perform the and operation utilizes a first memristor and a second memristor connected in series. Lowpower, flexible memristor circuit for mobile and. This paper discusses memristors in the context of digital logic synthesis. A general logic synthesis framework for memristorbased. Memristorbased volistor gates compute logic with low. However, the design method of the rrambased logic circuit is still an open issue. Four of the transistors are used to create an hbridge architecture, allowing for the application of pulses in both directions using a single positive voltage source. With the advantages of nonvolatility, functional completeness all boolean logic can be realized via the combination of imp and false, i. The hp researchers say there is still much work to be done before a commercial version of memristor logic appears.

It also gives the missing link between magnetic flux and charge. However, since this study, numerous other approaches have been proposed, which offer differing properties and tradeoffs. A functional hybrid memristor crossbararraycmos system. This work contributes to memristorbased combinational logic circuit design and motivates for further research on new design strategies that comply with emerging technologies and with the oncoming scaledown of the electronic circuits. Logic design of quantum circuits and memristor based systems overview there have been significant advances in fabrication and logic design technologies over the last several decades. Pdf as the downscaling of cmos technology has been more and more difficult, alternative technologies are under research to realize the. Magicmemristoraided logic department of electrical and. It will eliminate a safety margin is left for each logic output and enables a better readwrite data integrity. This paper proposes a new 5d chaotic system with the fluxcontrolled memristor. Memristor is a twoterminal either bipolar or unipolar passive element and is capable of being integrated as a combination of digitalanalog, storage element, and logic. Nanoscale memristive devices for memory and logic applications by sung hyun jo chair.

These two states can correspond to storage of logic 0 and logic 1 in the memristor. In this paper, a methodology for designing this logic family is proposed. Nanochannelbased transport in an interfacial memristor. Memristor seminar report, ppt, pdf for ece students. Memristive switches enable stateful logic operations. Rram seen as practical realisation of a theoretically predicted element. Logic design within memristive memories using memristor aided. Design and implementation of basic logic gates and adder. The paper shows not only the potential of memristor devices in enabling new memory technologies and new logic design styles, but also their potential in enabling memory intensive architectures as well as neuromorphic computing due to their unique properties such as the tight integration with cmos and the ability to learn and adapt. Our design exploration is reconfigurable threshold logic gates based programmable analog circuits using memristor. Memristorcmos logic and digital computational components.

Memristive device for logic design and computing tu delft. Memristor for computing proceedings of the conference on. Fundamentals of memristors 30 april 2015 workshop on memristive systems for space applications 30 april 2015 estec, noordwijk, nl. A design methodology for the imply logic gate is proposed in section v. In this section, we study two design styles for memristors, i. This logic family can be integrated within a memristorbased crossbar, commonly used for memory. This novel technology can be used as an energy efficient computing. Logic design of quantum circuits and memristor based systems. Cmostransistors circuits have been used as a conventional approach for designing an analog multiplier in modern era of industrial electronics.