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. Ternary logic is implemented in two operating modes. This is contrasted with the more commonly known bivalent logics such as classical sentential or boolean logic which provide only for true and. The proposed ternary logic gates are useful in designing the ternary logic circuits.
Design and application of pipelined dynamic cmos ternary. Binary logic and devices have been in use since inception with advancement and technology and millennium gate design era. Chapter overview 21 binary logic and gates 22 boolean algebra 23 standard forms 24 twolevel circuit optimization 25 map manipulation quinemccluskey method 26 multiplelevel circuit optimization 27 other gate types 28 exclusiveor operator and gates. Design and implementation of lowpower ternary full adder.
Design of ternary logic circuits using cntfet request pdf. The circuits considered in the study are expected to be produced by the standard mos technology. This paper will be concerned with the potential of ternary logic, advantages of this logic, and whether in the future it could be expected to be utilized in digital systems. Im incredibly proud today to be standing alongside a coalition of organizations committed to building a more just richmond and a more just virginia through public school, housing, and environmental advocacy. How to use the php ternary operator a beautiful site. Design of ternary logic 8bit array multiplier based on qdgfet. Design of low power cmos ternary logic gates savitri vanjol. A ternary computer also called trinary computer is a computer that uses ternary logic three possible values instead of the more popular binary system base 2 in its calculations. Dec, 2016 ternary logic circuits resemble binary logic circuits, but with three logic levels instead of only two. General terms arithmetic logic design, colorcoded ternary keywords.
Where ternary functions are analogous to boolean functions, parallel notations are used. Ternary logic circuits resemble binary logic circuits, but with three logic levels instead of only two. Design methodologies for ternary logic circuits request pdf. We have shown the implementation of ternary logic like inverter, and. Thus, the output voltage of sti will be the mean value of the nti and pti output voltages. Arithmetic logic design with colorcoded ternary for ternary. Design of low power cmos ternary logic gates savitri. 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. In spite of potential superiorities of ternary logic, binary is still the dominant logic for circuit design in the industry. Balanced ternary logic for improved and advanced computing.
Get free design of multiplexer using cmos ternary logic design of multiplexer using cmos ternary logic if you ally need such a referred design of multiplexer using cmos ternary logic books that will provide you worth, get the enormously best seller from us currently from several preferred authors. This paper introduces the idea of mvl first by investigating the simplest form of combinational ternary logic, ternary inverters and ternary gates. Design of ternary logic circuit is inherently more challenging than its binary counterpart. This study enables the reader to clear basic concepts about the ternary logic designs and their performance analysis. Binary logic standard 0 1 ternary logic standard 0 1 2 balanced.
Magdum college of engineering, jaysingpur figure 2. Ternary logic is an effective approach over the default binary logic design technique because it allows to define one more voltage level which is vdd2 and it also allows a circuit to be simple in. Traditionally, digital computation is performed on two valued logic. General terms arithmetic logic design, colorcoded ternary. Keywordsmultivalued logic, ternary logic, standard ternary inverter i.
The use of pass transistor logic style leads to low power consumption. 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 nand gate and ternary nor gate are also designed and simulated. A brief summary of ternary logic designs based on cmos and cntfet is presented. 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. The ternary sr am consists of crosscoupled ternary. Ternary logic is a promising alternative to the conventional binary logic design technique, since it is possible to accomplish simplicity and energy efficiency in modern digital design due to the. In this paper, we present negative and nand, negative or nor, positive and pand, and positive or por structure for tqca. A ternary simulator was also developed to aid in the research and development of ternary systems. In this paper, a novel method is presented to design ternary logic circuits based on carbon nanotube field effect transistors. Ternary logic in digital computers proceedings of the share. At this point i have shifted my attention to higher level applications of ternary logic and math to start filling in the gap of knowledge about how having three states will affect algorithms, tritwise operations, primitive data types, instruction set architectures, etc. The ternary that is three valued has more advantages over binary logic in the design of digital systems 1, 2.
Cmos, carbon nanotube field effect transistor cntfet, multivalued logic mvl design, ternary logic, hspice. The logic states are supported by a bipolar power source. Pdf novel ternary logic gates design in nanoelectronics. This paper proposes a novel design of pass transistorbased ternary full adder tfa cell using inherent binary nature 0, 1 of input carry in carbon nanotube field effect transistor cntfet technology. This circuit consists of only mos transistors and capacitors without. Digital logic design laboratory page 3 dld lab venue. Design of cmos ternary logic family based on single. Now binary logic has become tedious and complicated. Us4107549a ternary logic circuits with cmos integrated. The ternary logic has significant merits over binary logic in designing digital circuits. Pdf ternary logic implementation and its applications. A novel design of ternary full adder using cntfets. Lowpower highperformance ternary content addressable memory circuits by nitin mohan a thesis. This paper presents very large scale int egration vlsi design and simulation of a ternary logic gates and cmos ternary sram cell.
Arithmetic logic design with colorcoded ternary for ternary computing. Back gate bias method of threshold voltage control for the. Multivalued logic circuit design for binary logic interface. Among many mvl systems, ternary logic also known as threevalued logic has soared in popularity due to its simplicity and efficiency 4, 5. Binary logic standard 0 1 ternary logic standard 0 1 2 balanced 1 0 1 16. 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. Ternary logic design approach from cmos to cntfet rani. 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.
For large memory size, ternary logic can significantly reduce the area and the power consumption. Ternary inverter, the nti negative ternary inverter and the pti positive ternary inverter, whose logic functions are shown in table 9. In this paper, the designs of ternary logic circuits are proposed based on single power supply voltage. Ternary logic design later to be verified the performance and correctness using arithmetic circuit. Abstractin this paper, we discuss logic circuit designs using the circuit model of threestate quantum dot gate field effect transistors qdgfets. Design of low power low voltage circuit using cmos ternary logic. Yet more quinemcclusky each member of a group must have xs in the same position. Ternary logic families a p dhande, v t ingole and v r ghiye. Design of universal logic gates based on cntfet for binary. The circuits using ternary logic are theoretically more economical than the ones using binary logic.
Design and application of pipelined dynamic cmos ternary logic and simple ternary differential logic chungyu wu, member, ieee, and hongyi huang, student member, ieee abstractnew dynamic cmos ternary logic circuits, which can be used to form a pipelined system with the nonoverlapped twophase clocks, are proped and investigated. 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. These characteristics may involve power, current, logical function, protocol and user input. Design and implementation of 2 bit ternary alu slice. Cnfet based ternary and binary circuits are used to implement the proposed methodology. This special property of base 3 inspired the early computer designers to build a ternary computer. What a cool way to simplify assignments based on a condition. Design and implementation of ternary logic circuits for vlsi. Preliminaries of ternary logic the ternary logic also called threevalued or trivalent logic and abbreviated 3vl is a promising alternative to the conventional binary logic design technique. Combine members of the new groups to create more new groups combined terms must differ by one. This inverter could be used as a fundamental block for designing other ternary basic logic gates. One of the main reasons is the intrinsic behaviour of transistors. The proposed designs are based on the use of only enhancement type mosfets so that it can be implemented with recent cmos technology.
Digital logic design is foundational to the fields of electrical engineering and computer engineering. An optimal gate design for the synthesis of ternary logic. The simple ternary inverter, positive ternary inverter and negative ternary inverter are designed in 180nm technology. Ternary inverters and logic gates have three logical levels. Aug 18, 2014 when i learned how to use the ternary operator years ago, i fell in love with it. Lowpower highperformance ternary content addressable. Pdf design of low power low voltage circuit using cmos. The design of a set of inverters and basic ternary logic gates is proposed. It is possible for ternary logic to achieve simplicity and energy efficiency in digital design since the logic. Arithmetic logic design with colorcoded ternary for. Pdf circuits and systems based on delta modulation pp 4150 cite as. 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. Simulations results indicate that the proposed 1bit half adder has 27% less delay and 23% lower power delay product, when compared to the existing design. Due to its popular nature, all semiconductor devices have been designed and fabricated to suit binary logic.
And, since spintronics, being very fast, reliable, and compact, is a very good choice for beyondcmos logic design, we have designed spintronic ternary logic circuits to harness the benefits of spintronics and ternary logic system. Vlsi design and implementation of ternary logic gates and. Simulation result of the ternary logic design we designed a new proposed scheme to adapt ternary design. The two unary operators pti and nti have been used to design a jk arithmetic circuit, and ternary gate tgate which is essentially a multiplexer. Energy efficient tristate cnfet ternary logic gates arxiv. Multiplexer based design for ternary logic circuits. Design of low power cmos ternary logic gates second international conference on emerging trends in engineering sicete 57 page dr. Design and implementation of ternary logic integrated. Design of low power low voltage circuit using cmos. Designing positive, negative and standard gates for.
International journal of computational engineering. A buffer circuit is added to get high performance without sacrificing the overall energy efficiency of the design. Introduction the intrinsic switching behavior of many electronic devices makes them appropriate for implementing binary digital integrated circuits. This morning our coalition released a statement against the proposed coliseum redevelopment project, which is led by tom farrell of dominion energy. But since the number of circuit elements decreases in the ternary logic, the total power also decreases for the large memory size. Computer interfacing lab first floor, electrical department lab venue the digital logic design lab dld lab is one of the most important and well equipped lab of the department of electrical engineering at university of engineering and technology, lahore. In this multivalued logic system we have found some different gates. Pdf vlsi design and implementation of ternary logic. Pdf arithmetic logic design with colorcoded ternary for. The notation proposed here follows from conventional boolean logic augmented by the third value of kleene logic, unknown. Design of low power cmos ternary logic gates iosr journal. Design of ternary logic combinational circuits based. This paper presents vlsi design of static random access memory sram based on simple ternary gates.
The proposed ternary logic gates are useful in designing the. 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. Design of a ternary edgetriggered d flipflapflop for. A new methodology is presented in order to design any standard ternary logic. Design and implementation of ternary logic gates over a.
Fourteensuchtgateshavebeenfinallyused in design of a ternary full adder. The ternary computing menagerie is my collection point for all such research. Introduction a ternary, threevalued or trivalent logic sometimes abbreviated 3vl is any of several multivalued logic systems. When the input x is 0 the nmos transistor is off and. 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. Ternary logic is an effective approach over the default binary logic design technique because it allows to define one more voltage level which is vdd2 and. For this purpose the low power and low voltage arithmetic and logic. May 17, 2009 implementations of the basic ternary logic element and digital units with the use of the balanced threevalued code are suggested. Since digital logic is introduced, digital computation is only performed on twovalued logic 0 or 1, true or false in the boolean space. These basic logic gates are used to make combinational design like.
Pdf a new cmos ternary logic design for lowpower low. Although considerable work on implementing ternary logic functions has been done, no standard notation has emerged. Abstract this paper introduces novel ternary logic circuits using spintronic devices magnetoresistive spin diodes and complementary magnetic junction cmat logic architecture. Digital logic designers build complex electronic components that use both electrical and computational characteristics. Since ternary logic circuits can implement any function or compound logic using less gates and less circuit. The results of simulation of vsupplied units with the use of the parameters of the 0. The design has been fabricatedin mosistwomicroncmosnwellprocess, tested andperformance. In this article ill build a tnand gate and tand gate, analogous to the binary nand gate. Automatic design of optimal logic circuits based on ternary quantumdot cellular automata miha janez, iztok lebar bajec, primoz pecar, andrej jazbec, nikolaj zimic and miha mraz faculty of computer and information science, computer structures and systems laboratory university of ljubljana trzaska cesta 25, ljubljana slovenia. To accomplish simplicity in circuit design and increase the data density in practical integrated circuits, further research on ternary logic devices. Design of cmos ternary logic family based on single supply.
These gates can be the basis of more complex circuits for ternary computation. The backgate bias method has been used in conjunction with the width. Multivalued logic circuit design for binary logic interface a dissertation submitted in partial fulfillment for the award of the degree of. The use of integrated circuits in designing ternary memory elements may be a good solution to this problem. A novel design of spintronic ternary logic circuits. The choice of which logic system to use should be determined primarily on the basis of cost, reliability, and operating speeds of the physical realization.