Ternary logic gates are the basic building blocks of any ternary circuits, which switch among above three levels. Design of low power cmos ternary logic gates savitri vanjol. Design of low power cmos ternary logic gates 1savitri vanjol, 2pradnya pawar 1,2assistant professor, ece dept, dr. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
The nand gates from binary logic become negatedminimum gates in ternary logic, and the nor gates from binary become negatedmaximum gates in ternary. The authors have developed a simplified circuit model. It seems that most efficient radix for the implementation of digital system is 3 than 2. 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. Where ternary functions are analogous to boolean functions, parallel notations are used. Us4107549a ternary logic circuits with cmos integrated. Balanced ternary logic for improved and advanced computing. Balanced ternary logic is a nonbinary, multivalued logic and special case of ternary logic in which the pt is represented as pbt where pbt 1,0,1, though, for. An optimal gate design for the synthesis of ternary logic. While binary logic is limited to only two states, true or false, multiplevalued logic i. Design of universal logic gates based on cntfet for binary. E,jaysingpur, kolhapur, maharastra, india abstract a novel low power and high performance standard ternary inverter sti for cmos technology is proposed in this paper. This paper presents vlsi design of static random access memory sram based on simple ternary gates.
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. This inverter could be used as a fundamental block for designing other ternary basic logic gates. Pdf on sep 27, 2019, sajjad etezadi and others published novel ternary logic gates design in nanoelectronics find, read and cite all the research you need on researchgate. Computer simulations show that the circuits based on. Mostly, because its easier to implement two states than three. The ternary logic has significant merits over binary logic in designing digital circuits. In this paper, a novel method is presented to design ternary logic circuits based on carbon nanotube field effect transistors. We propose the ternary controlled x tcx gate or ternary controlled z tcz gate as twoqutrit elementary gate.
Design of universal logic gates based on cntfet for binary and ternary logic 1radha tapiawala, 2rahul kashyap 1,2department of electronics and communication engineering vlsi and embedded system design gujarat technological university, ahmedabad, india and cdac, pune, india. A set of pvalued logic gates primitives is called universal if an arbitrary pvalued logic function can be realized by a logic circuit built up from a finite number of gates belonging to this set. By using this ternary technology designing of arithmetic circuits can implement. To make ternary logic applicable in practice, efficient circuits must be developed before all else. Implementation of low power ternary logic gates using cmos. Ternary logic can replace these with three values in this paper, they proposed ternary nand gates. Nov 20, 2016 we have successfully built and tested the ternary logic inverter.
Why is boolean logic used rather than ternary logic, etc. Another reason why ternary logic is not as popular as its binary counterpart is mainly because of the lack of sufficient practical, highperformance logic gates and computational components. The resistiveload mosfetbased ternary logic gates have already been proposed. Because of some properties of cmos or cosmos devices, they may be used in the design of ternary logic circuits, in a manner which differs somewhat from the. In logic, a threevalued logic also trinary logic, trivalent, ternary, or trilean, sometimes abbreviated 3vl is any of several manyvalued logic systems in which there are three truth values indicating true, false and some indeterminate third value. This circuit consists of only mos transistors and capacitors without.
Energy efficient tristate cnfet ternary logic gates arxiv. The ternary logic is a promising alternative to the conventional binary logic design technique. Traditional binary gates are use in current digital devices. An output of one logic gate can be an input to another logic gate. A free powerpoint ppt presentation displayed as a flash slide show on id. A brief introduction to ternary logic jorge pedraza arpasi. Ibm also reports infrequently on ternary computing topics in its papers, but it is not actively engaged in it.
This project documents physical implementations of ternary logic gates and higher level sequential components. The use of integrated circuits in designing ternary memory elements may be a good solution to this problem. This paper presents design, implementation and analysis of ternary logic gates and combinational circuits have been validated using tanner eda tool. Design and implementation of ternary logic integrated circuits by. Design of universal logic gates based on cntfet for binary and ternary logic 1radha tapiawala, 2rahul kashyap 1,2department of electronics and communication engineering vlsi and embedded system design gujarat technological university, ahmedabad, india and cdac, pune, india abstractthis paper addresses to comparison of logic gates. Multivalued logic circuit design for binary logic interface. Pdf an optimal gate design for the synthesis of ternary logic circuits. A ternary computer using fiber optics could use dark as 0 and two orthogonal polarizations of light as 1 and. Switching elements in the implementation of inverters those discussed in chapter1 are transistors, mosfet. All ternary logical operations can be designed with sti and nmin. Because of some properties of cmos or cosmos devices, they may be used in the design of ternary logic circuits, in a manner which differs somewhat from the design of normal or ordinary binary logic circuits. Compared to the binary logic gate with two states of 0 and 1, the multivalued logic gate contains three different states of 0, 1, and 2, which can.
Design and implementation of ternary logic gates over a. The ternary gates can be used for designing ternary arithmetic circuits such as ternary adders and multipliers. Although considerable work on implementing ternary logic functions has been done, no standard notation has emerged. In this paper, we discuss the basic ternary gates and some circuits implemented by using finfet. Given that all other inputs to the min gates in sumofproducts logic are boolean valued, all such min gates are actually simple boolean and gates. A plethora of oneinput ternary logic gates are possible a total of 3. In this article the elementary gates for ternary quantum logic circuit are studied. The circuits thus obtained are then used to synthesize. Low power dissipation mos ternary logic family ieee xplore. In digital system, not, nor and nand are of importance as they are the main building blocks of many complex arithmetic and logic circuits.
Implementation of unbalanced ternary logic gates with the. Ternary system is a very promising system where more information is represented in the same number of digits compared to the binary systems. On universality of ternary reversible logic gates pawel kerntopf, marek a. It is shown ternary logic has promising future in cntfets when compare to conventional binary logic design, due to its simplicity and energy efficiency in digital design reduced circuit overhead such as chip area and. Introduction to logic gates using transistor technology, we can create basic eve engels, 2006 slide 1 of 20 logic gates that perform boolean operations on high 5v and low 0v signals. These gates are used to design basic ternary arithmetic and memory circuits. These gates are implemented using cmos ternary logic tgates the new family is based on cmos technology and is thus open to vlsi implementation. In this work, the designs of ternaryvalued logic circuits have been explored over multivalued logic. In this paper, ternary logic gates and some of their ternary circuit applications are presented using memristors and cntfet inverter. In the case of min gates with one input set to the constant 0, where all other inputs are boolean, we do not need to use ternary logic gates at all. By documenting functional techniques for building up the lower level components of a ternary processor i hope to ease the way for others to begin experimenting as well. Pdf elementary gates for ternary quantum logic circuit.
We have successfully built and tested the ternary logic inverter. In this paper, a novel design technique for ternary logic gates based on cntfets is proposed and compared with the existing resistiveload cntfet logic gate designs. May 27, 2011 in this article the elementary gates for ternary quantum logic circuit are studied. In logic, a threevalued logic also trivalent, ternary, or trinary logic, sometimes abbreviated 3vl is any of several manyvalued logic systems in which there are three truth values indicating true, false and some indeterminate third value. Memristorcntfet based ternary logic gates sciencedirect. Sep 20, 2014 in this paper, we have discussed universal logic gates, nand and nor logic using the circuit model of threestate quantum dot gate field effect transistor. This creates trees of gates that depend on each other. Ternary universal logic gates using quantum dot gate field. An optimal gate design for the synthesis of ternary logic circuits contact ulsan national institute of science and technology school of electrical engineering. The ternary logic levels and values are shown in table i.
A transformation based algorithm for ternary reversible logic synthesis using universally controlled ternary gates a transformation based algorithm for ternary reversible logic synthesis using universally. Traditionally, digital computation is performed on two valued logic. Vlsi design and implementation of ternary logic gates and. Design of low power cmos ternary logic gates iosr journal. An extensive simulation is performed for all the gates and circuits using tspice simulator. Design and implementation of ternary logic circuits for vlsi. Logic gates constitute the foundation blocks for digital logic. The simple ternary inverter, positive ternary inverter and negative ternary inverter are designed in 180nm technology. Ternary logic circuits resemble binary logic circuits, but with three logic levels instead of only two. This chapter deals with the comparative analysis of cmos and cntfetbased ternary inverter and universal gates design. For supply voltage of 5 v, 3 levels of ternary system are defined as. Pdf on jan 1, 2018, sunmean kim and others published an optimal gate design for the synthesis of ternary logic circuits find, read and cite. The proposed memristorbased circuit replaces the large resistors by employing.
Design of low power cmos ternary logic gates savitri. The notation proposed here follows from conventional boolean logic augmented by the third value of kleene logic, unknown. However, the diagrams we use are easier to understand. The authors have developed a simplified circuit model that.
In the paper, we consider the problem of determining the number of universal ternary reversible logic gates with two inputs and two outputs. Priyanka vyawahare1, anupama deshmukh2, ankita chandurkar3. One can go through some formal analysis and find the optimum number of states to represent information on a minimum number of gates, etc. Voltage level logic value 0 0 12v dd 1 v dd 2 table. Ternary logic families a p dhande, v t ingole and v r ghiye. In logic, a threevalued logic also trivalent, ternary, or trinary logic, sometimes abbreviated 3vl is any of several manyvalued logic systems in which there are three truth values indicating true, false and some indeterminate third value this is contrasted with the more commonly known bivalent logics such as classical sentential or boolean logic which provide only for true and false. Design of ternary nand gates using ternary transmission gates. An approach to ternary logic gates using finfet proceedings. 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. Logic gates actually look like weird bugs in real life. The proposed memristorbased circuit replaces the large resistors by.
Pdf on universality of ternary reversible logic gates. In this article ill build a tnand gate and tand gate, analogous to the binary nand gate. Memristor based unbalanced ternary logic gates springerlink. One possible way this could happen is by combining an optical computer with the ternary logic system. Ternary logic is an auspicious supernumerary to the conventional binary 0, 1 logic design techniques as this one is possible to attain straightforwardness and energy efficiency. However, only three logic states are used 0, 1 and 2. In this work, we have successfully realized multivalued logic circuits including ternary inhibit and ternary or logic gates in an enzymefree condition by integration of graphene oxide and dna for the first time. A ternary, threevalued or trivalent logic sometimes. Quantum dot gate field effect transistors produce one intermediate state between the normal two stable, on and off states due to a change in the threshold voltage over this range. Pdf novel ternary logic gates design in nanoelectronics. Then we will integrate the asdemonstrated logic gates to design and realize the dyadic ternary operators such as tnand.
Dec, 2016 ternary logic circuits resemble binary logic circuits, but with three logic levels instead of only two. In this paper, it is proposed to implement a half adder circuit. Only 1% of ternary logical operations are designed as 2stage cascade. Ternary inverter a ternary inverter is a fundamental gate in ternary logic system. This is contrasted with the more commonly known bivalent logics such as classical sentential or boolean logic which provide only for true and. Khan institute of computer science, department of electronics and information technology, warsaw university of. Vhdl, tgates, multivaluedlogic, literals, cmos, ternary. For efficient design of ternary circuit, more logic gates are needed. In multivalued logic gates have not been standardized but ternary and quaternary gates are two commonly used multivalued logic gates described in literature. Design and analysis of ternary logic gates and combinational circuits in 180nm cmos soumita haldar chakraborty, suman haldar abstract the multivalue logic system specifically the ternary logic system can be a good alternative in processing of digital signals and high speed data transfer in optical communication based systems. The circuits using ternary logic are theoretically more economical than the ones using binary logic. This paper presents very large scale int egration vlsi design and simulation of a ternary logic gates and cmos ternary sram cell. We propose the ternary controlled x tcx gate or ternary controlled z tcz gate.
Implementation of low power ternary logic gates using. The optimum radix r of a fractional number is found to be the natural logarithm e. The functions of the twoentry ternary nand and nor gates are defined by the following two equations, respectively. This paper introduces the idea of mvl first by investigating the simplest form of combinational ternary logic, ternary inverters and ternary gates. Ternary logic uses number representation with r3, compared to quaternary logic which uses r4, hence the most economical integer radix which is the closest to the natural logarithm e, is base 3 3. We propose the ternary controlled x tcx gate or ternary controlled z tcz gate as twoqutrit elementary gate, which is universal when assisted by arbitrary. In this paper, we have discussed universal logic gates, nand and nor logic using the circuit model of threestate quantum dot gate field effect transistor.
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