Multiple Valued Logic - MVL

Size: px
Start display at page:

Download "Multiple Valued Logic - MVL"

Transcription

1 Multiple Valued Logic - MVL Olivier entieys Juin 21 1 What is MVL? Currently, computers and other electronic devices run as 1111 binary logic with 2 logical states:, 1 Multivalued logic offers many logical states:, 1, 2, 3, 4,5 and more complex functions in less time and space than binary applications Until the U-LOC technology was developed, MVL was impractical or unachievable through conventional means, and drew only theoreticians and researchers looking for the key to making it usable U-LOC was invented in the 199 s by an Olson and is proving to be the long sought solution 2 1

2 Technical advantages of U-LOC MVL circuits and devices A decrease in required power A decrease of passive parasitic values Ability to perform multiple logic functions in one operation e.g. (A+) AN An increase in data density Reduced package size due to fewer required pins uperior performance (more bandwidth) with a reduced clock rate 1 Mbit/s = 125 kbyte/s 1 byte = 5-6 ternary digit 75 ktit/s 3 Introduction Les bases pour aborder la MVL Les fonctions à 1 entrée Les fonctions à 2 entrées 4 2

3 Transistors à enrichissements Le MOFET à enrichissement avec un canal N G Vgs Conduction : Vgs > Vt n > e.g..45v Id > Vds > Quand la ource est reliée au ulk En logique binaire G G Le MOFET à enrichissement avec un canal P Vgs Conduction : Vgs < Vt p < e.g G Id > Vds < Quand la ource est reliée au ulk En logique binaire G G 5 Les transistors à appauvrissements Le MOFET à appauvrissement avec un canal N Conduction : Vgs > V't n < e.g. -.45V G G Le MOFET à appauvrissement avec un canal P G G Conduction : Vgs < V't p > e.g

4 Les caractéristiques : Id = F(Vgs) Id PMO à Enrichissement PMO à Appauvrissement NMO à Appauvrissement NMO à Enrichissement Vtp V'tn V'tp Vtn Vgs 7 Number representation ecimal inary Ternary A Z Y X W V ##### ##### ##### ##### ##### ##### ##### ##### 8 4

5 Les Fonctions à 1 entrée Les fonctions élémentaires L inverseur binaire L inverseur ternaire 9 Les fonctions élémentaires Les fonctions logiques binaires X E Id Not E es fonctions logiques ternaires (27) X E E 1 E 2 C C 1 C 2 N(x) Id(x)

6 L inverseur binaire Vgs=-5V -3.25V Vdd E = 1 Vdd = 5V E = Vgs=V 3.25V Vss E Vgs=V Vdd Vss = V E = V E = 3.25V Vgs=5V Vss 11 La logique 3 valeurs F(x) = <2 > = C(x) X 1 2 F 2 ifférentes négations X N(x) = < 2 1 > C(x) = < 2 2 >

7 C + Q5 Q4 GN 13 The three requirements of U-LOC: There must be one controllable path, or branch, from a source of power to an output terminal of a circuit, per output logic level Only one controllable path, or branch, conducts from a source of power to an output terminal per input logic level, contiguous group of input logic levels, or unique combination of input logic levels There must be «r» different sources of power, each source of power represents only one of «r» different logic levels 14 7

8 Inverseur 3-VL = Figure 5 = 1 Figure 6 = 2 Figure 7 V1 Q2 Q3 Q1 Q4 15 Inverseur 3-VL - = Vgs=-5V Vgs=-2.5V -3.25V V1 =2.5V =5V Q1 PMO à PMO à Enrichissement Appauvrissement Id NMO à Appauvrissement NMO à Enrichissement.75V Q2 Vt-p Vp-n Vp-p Vt-n Vgs V Q3 Vgs=-5V Vgs=V 3.25V Q4 Retour 16 8

9 Inverseur 3-VL - =1 Vgs=-2.5V Vgs=V -3.25V V1=2.5V =5V Q1 PMO à PMO à Enrichissement Appauvrissement Id NMO à Appauvrissement NMO à Enrichissement.75V Q2 1 Vt-p 1 Vp-n Vp-p Vt-n Vgs -.75V Vgs=V Q3 Vgs=2.5V 3.25V Q4 Retour 17 Inverseur 3-VL - =2 Vgs=V Vgs=2.5V -3.25V V1=2.5V =5V Q1 PMO à PMO à Enrichissement Appauvrissement Id NMO à Appauvrissement NMO à Enrichissement.75V Q2 2 Vt-p Vp-n Vp-p Vt-n Vgs -.75V Vgs=5V Q3 Vgs=5V 3.25V Q4 Retour 18 9

10 Inverter delay and Power.25 micron technology Cl = 5fF ELO simulator inary delay power ->1 8ps 3,1 uw 1-> 8ps 265 nw Ternary delay power 2->1 14ps 47 nw 1->2 85ps 97 nw 2-> 16ps 411 nw ->1 11ps 436 nw 1-> 82ps 35 nw ->2 142ps 1,5 uw 19 Les Fonctions à 2 Entrées ET/OU X.Y = MIN(X,Y) X+Y = MAX(X,Y) Associativité, commutativité C(X+Y) = C(X).C(Y) C(X.Y) = C(X)+C(Y) Idem avec N(x) A plus, N(A plus ) 2 1

11 Les Fonctions à 2 Entrées Etude de la fonction CGAN3 ( NAN2) (CGAN = Complementing Generalized AN) A CGAN3 A La fonction CGAN3 éfinir les paramètres du circuit évelopper le tableau de Karnaugh éterminer les liens logiques entre les entrées et la sortie Concevoir le circuit 22 11

12 Etape 1 - CGAN Logique ternaire [ 1 2] V = Volts V1 = 2.5 Volts = 5 Volts LV = 2.5 Volts (Logic tep Voltage) OP = 7 % (Overlap Percentage) X 1 2 LV (Volts) V (volts) X=1 OP (%) t (temps) 23 Etape 2 - CGAN A

13 Etape 3 - CGAN A A A Etape 3 - CGAN A = x = 2 x = = 2 = 1 1 = 1 1 = 1 = 1 = 2 = 2 = 26 13

14 Etape 4 - CGAN ranches extrêmes E > : canal NMO E < : canal PMO ranches intermédiaires E < : canal PMO E et NMO E = : canal PMO et NMO E > : canal PMO et NMO E Vtn = Vi - (Vo + (OP*LV)) : transistor N Vtp = Vi - (Vo (OP*LV)) : transistor P 27 Etape 4 - CGAN Q1 Q2 V1 Q3 V1 A A 3.129V Q4 Q V Q6 V 4.348V Q V Q8 V GN 28 14

15 Etape 4 - CGAN Q1 V 2 Q2 Q16 Q17 V 1 Q18 V 1 C C Q2 Q3 A A Q4 Q19 Q14 Q5 Q6 Q2 Q13 Q7 Q8 Gnd 29 Additionneur ternaire Equations logiques Logique binaire Logique ternaire Complexité 3 15

16 Logique binaire a i b i c i i c i i = aibici v aibici v aibici v aibici ci+1 = aibici v aibici v aibici v aibici ci+1 = aibi v aici v bici 31 Logique ternaire a i b i c i i c i i = e1c(ai)c1(bi)c(ci) V e 1C1(ai)C(bi)C(ci) V e 1C2(ai)C2(bi)C(ci) V e 1C(ai)C(bi)C1(ci) V e 1C1(ai)C2(bi)C1(ci) V e 1C2(ai)C1(bi)C1(ci) V C(ai)C2(bi)C(ci) V C 1(ai)C1(bi)C(ci) V C 2(ai)C(bi)C(ci) V C (ai)c1(bi)c1(ci) V C 1(ai)C(bi)C1(ci) V C 2(ai)C2(bi)C1(ci) Ci+1 = e1[c1(ai)c2(bi) v C2(ai)C1(bi) v C2(ai)C2(bi)] v c i[c2(bi) v C1(ai)C1(bi) v C2(ai)] 32 16

17 Logique ternaire 33 Additionneur ternaire Optimisation FA ternaire A plus A plus plus carry A plus plus C plus carry Comparaison avec binaire inaire : adder 16 bits Ternary : adder 1 tits 34 17

18 C + Q5 Q4 GN 35 C1 M5 + M1 M2 M3 M4 MbreakN MbreakN+ M6 MbreakN+ GN 36 18

19 C2 M1 + M2 M3 M4 MbreakN+ MbreakN GN 37 AN à 3 entrées Q1 Q2 Q16 C C V1 Q15 Q3 V1 Q9 V1 Q1 A A Q14 Q5 Q4 Q6 Q11 Q12 Q13 Q7 GN Q

20 OR à 3 entrées Q1 Q2 Q16 C A C A V1 Q15 V1 Q6 Q2 Q9 V1 V1 Q1 Q11 Q14 Q4 Q3 Q12 L = 4u W = 3u Q13 L = 4u W = 3u Q7 L = 4u W = 3u Q8 GN 39 Goal of our project emonstration of the U-LOC technology efficiency for MVL (3L, 4L) Power-peed Efficiency Telecommunication application context igital ignal Processor Architecture edicated Processing Unit (arithmetic unit, hard-wired multiplier, register file) Internal Memories (ROM, RAM) imple control model 4 2

21 chedule (1) tudy the power-speed efficiency of U-LOC circuits on representative blocks (arithmetic, memory, etc.) Ternary and Quaternary Logic Compare the results with their equivalent in binary Adder Multiplier Register 41 chedule (2) efinition of a library of U-LOC standard cells at the transistor level (flip-flop, latch, logic gates, arithmetic functions, multiplexer). Characterization in terms of power, speed, area efinition of VHL-based models of U-LOC standard cells at the gate (and transistor?) level

22 chedule (3) esign of typical arithmetic and logic elements of a P (multiplier, ALU, barrel shifter, register files). esign of a igital ignal Processor. VHL based design imulation for verification imulation for characterization efinition of a CA tool for designing U-LOC structures 43 What we have done esign of basic U-LOC structures using pice models Ternary Full-Adder Porting of the structures in TM.25µ technology (depletion transistors extrapolated) efinition of a VHL package for simulation T_TERNARY_LOGIC 44 22

23 Research directions Logic ynthesis and Mapping for MVL and U/LOC I/MVI (UC) CA Tools Technology OI, new transistors Communications in higher radix than

Menu. 7-Segment LED. Misc. 7-Segment LED MSI Components >MUX >Adders Memory Devices >D-FF, RAM, ROM Computer/Microprocessor >GCPU

Menu. 7-Segment LED. Misc. 7-Segment LED MSI Components >MUX >Adders Memory Devices >D-FF, RAM, ROM Computer/Microprocessor >GCPU Menu 7-Segment LED MSI Components >MUX >Adders Memory Devices >D-FF, RAM, ROM Computer/Microprocessor >GCPU Look into my... 1 7-Segment LED a b c h GND c g b d f a e h Show 7-segment LED in LogicWorks,

More information

Power Consumption in CMOS CONCORDIA VLSI DESIGN LAB

Power Consumption in CMOS CONCORDIA VLSI DESIGN LAB Power Consumption in CMOS 1 Power Dissipation in CMOS Two Components contribute to the power dissipation:» Static Power Dissipation Leakage current Sub-threshold current» Dynamic Power Dissipation Short

More information

EE 330 Lecture 16. MOSFET Modeling CMOS Process Flow

EE 330 Lecture 16. MOSFET Modeling CMOS Process Flow EE 330 Lecture 16 MOFET Modeling CMO Process Flow Review from Last Lecture Limitations of Existing Models V V OUT V OUT V?? V IN V OUT V IN V IN V witch-level Models V imple square-law Model Logic ate

More information

S No. Questions Bloom s Taxonomy Level UNIT-I

S No. Questions Bloom s Taxonomy Level UNIT-I GROUP-A (SHORT ANSWER QUESTIONS) S No. Questions Bloom s UNIT-I 1 Define oxidation & Classify different types of oxidation Remember 1 2 Explain about Ion implantation Understand 1 3 Describe lithography

More information

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits. Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic.

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits. Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic. Digital Integrated Circuits A Design Perspective Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic Arithmetic Circuits January, 2003 1 A Generic Digital Processor MEM ORY INPUT-OUTPUT CONTROL DATAPATH

More information

Lecture 4: Implementing Logic in CMOS

Lecture 4: Implementing Logic in CMOS Lecture 4: Implementing Logic in CMOS Mark Mcermott Electrical and Computer Engineering The University of Texas at ustin Review of emorgan s Theorem Recall that: () = + and = ( + ) (+) = and + = ( ) ()

More information

Sequential Logic Circuits

Sequential Logic Circuits Chapter 4 Sequential Logic Circuits 4 1 The defining characteristic of a combinational circuit is that its output depends only on the current inputs applied to the circuit. The output of a sequential circuit,

More information

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits. Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic.

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits. Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic. Digital Integrated Circuits A Design Perspective Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic Arithmetic Circuits January, 2003 1 A Generic Digital Processor MEMORY INPUT-OUTPUT CONTROL DATAPATH

More information

Digital Logic. CS211 Computer Architecture. l Topics. l Transistors (Design & Types) l Logic Gates. l Combinational Circuits.

Digital Logic. CS211 Computer Architecture. l Topics. l Transistors (Design & Types) l Logic Gates. l Combinational Circuits. CS211 Computer Architecture Digital Logic l Topics l Transistors (Design & Types) l Logic Gates l Combinational Circuits l K-Maps Figures & Tables borrowed from:! http://www.allaboutcircuits.com/vol_4/index.html!

More information

Lecture 7: Logic design. Combinational logic circuits

Lecture 7: Logic design. Combinational logic circuits /24/28 Lecture 7: Logic design Binary digital circuits: Two voltage levels: and (ground and supply voltage) Built from transistors used as on/off switches Analog circuits not very suitable for generic

More information

E40M. Binary Numbers. M. Horowitz, J. Plummer, R. Howe 1

E40M. Binary Numbers. M. Horowitz, J. Plummer, R. Howe 1 E40M Binary Numbers M. Horowitz, J. Plummer, R. Howe 1 Reading Chapter 5 in the reader A&L 5.6 M. Horowitz, J. Plummer, R. Howe 2 Useless Box Lab Project #2 Adding a computer to the Useless Box alows us

More information

LOGIC CIRCUITS. Basic Experiment and Design of Electronics. Ho Kyung Kim, Ph.D.

LOGIC CIRCUITS. Basic Experiment and Design of Electronics. Ho Kyung Kim, Ph.D. Basic Experiment and Design of Electronics LOGIC CIRCUITS Ho Kyung Kim, Ph.D. hokyung@pusan.ac.kr School of Mechanical Engineering Pusan National University Digital IC packages TTL (transistor-transistor

More information

Arithmetic Building Blocks

Arithmetic Building Blocks rithmetic uilding locks Datapath elements dder design Static adder Dynamic adder Multiplier design rray multipliers Shifters, Parity circuits ECE 261 Krish Chakrabarty 1 Generic Digital Processor Input-Output

More information

Lecture 34: Portable Systems Technology Background Professor Randy H. Katz Computer Science 252 Fall 1995

Lecture 34: Portable Systems Technology Background Professor Randy H. Katz Computer Science 252 Fall 1995 Lecture 34: Portable Systems Technology Background Professor Randy H. Katz Computer Science 252 Fall 1995 RHK.F95 1 Technology Trends: Microprocessor Capacity 100000000 10000000 Pentium Transistors 1000000

More information

EE141- Spring 2007 Digital Integrated Circuits

EE141- Spring 2007 Digital Integrated Circuits EE141- Spring 27 igital Integrated Circuits Lecture 19 Sequential Circuits 1 Administrative Stuff Project Ph. 2 due Tu. 5pm 24 Cory box + email ee141- project@bwrc.eecs.berkeley.edu Hw 8 Posts this Fr.,

More information

Chapter 4. Sequential Logic Circuits

Chapter 4. Sequential Logic Circuits Chapter 4 Sequential Logic Circuits 1 2 Chapter 4 4 1 The defining characteristic of a combinational circuit is that its output depends only on the current inputs applied to the circuit. The output of

More information

Chapter 5. Digital systems. 5.1 Boolean algebra Negation, conjunction and disjunction

Chapter 5. Digital systems. 5.1 Boolean algebra Negation, conjunction and disjunction Chapter 5 igital systems digital system is any machine that processes information encoded in the form of digits. Modern digital systems use binary digits, encoded as voltage levels. Two voltage levels,

More information

Learning Objectives 10/7/2010. CE 411 Digital System Design. Fundamental of Logic Design. Review the basic concepts of logic circuits. Dr.

Learning Objectives 10/7/2010. CE 411 Digital System Design. Fundamental of Logic Design. Review the basic concepts of logic circuits. Dr. /7/ CE 4 Digital ystem Design Dr. Arshad Aziz Fundamental of ogic Design earning Objectives Review the basic concepts of logic circuits Variables and functions Boolean algebra Minterms and materms ogic

More information

Topics. CMOS Design Multi-input delay analysis. John A. Chandy Dept. of Electrical and Computer Engineering University of Connecticut

Topics. CMOS Design Multi-input delay analysis. John A. Chandy Dept. of Electrical and Computer Engineering University of Connecticut Topics CMO Design Multi-input delay analysis pring 25 Transmission Gate OUT Z OUT Z pring 25 Transmission Gate OUT When is low, the output is at high impedance When is high, the output follows However,

More information

Introduction to Computer Engineering. CS/ECE 252, Spring 2017 Rahul Nayar Computer Sciences Department University of Wisconsin Madison

Introduction to Computer Engineering. CS/ECE 252, Spring 2017 Rahul Nayar Computer Sciences Department University of Wisconsin Madison Introduction to Computer Engineering CS/ECE 252, Spring 2017 Rahul Nayar Computer Sciences Department University of Wisconsin Madison Chapter 3 Digital Logic Structures Slides based on set prepared by

More information

CMPE12 - Notes chapter 2. Digital Logic. (Textbook Chapters and 2.1)"

CMPE12 - Notes chapter 2. Digital Logic. (Textbook Chapters and 2.1) CMPE12 - Notes chapter 2 Digital Logic (Textbook Chapters 3.1-3.5 and 2.1)" Truth table" The most basic representation of a logic function." Brute force representation listing the output for all possible

More information

Fundamentals of Digital Design

Fundamentals of Digital Design Fundamentals of Digital Design Digital Radiation Measurement and Spectroscopy NE/RHP 537 1 Binary Number System The binary numeral system, or base-2 number system, is a numeral system that represents numeric

More information

CMPE12 - Notes chapter 1. Digital Logic. (Textbook Chapter 3)

CMPE12 - Notes chapter 1. Digital Logic. (Textbook Chapter 3) CMPE12 - Notes chapter 1 Digital Logic (Textbook Chapter 3) Transistor: Building Block of Computers Microprocessors contain TONS of transistors Intel Montecito (2005): 1.72 billion Intel Pentium 4 (2000):

More information

Lecture 3 Review on Digital Logic (Part 2)

Lecture 3 Review on Digital Logic (Part 2) Lecture 3 Review on Digital Logic (Part 2) Xuan Silvia Zhang Washington University in St. Louis http://classes.engineering.wustl.edu/ese461/ ircuit Optimization Simplest implementation ost criterion literal

More information

Chapter 2 CMOS Transistor Theory. Jin-Fu Li Department of Electrical Engineering National Central University Jungli, Taiwan

Chapter 2 CMOS Transistor Theory. Jin-Fu Li Department of Electrical Engineering National Central University Jungli, Taiwan Chapter 2 CMOS Transistor Theory Jin-Fu Li Department of Electrical Engineering National Central University Jungli, Taiwan Outline Introduction MOS Device Design Equation Pass Transistor Jin-Fu Li, EE,

More information

CMPEN 411 VLSI Digital Circuits Spring Lecture 21: Shifters, Decoders, Muxes

CMPEN 411 VLSI Digital Circuits Spring Lecture 21: Shifters, Decoders, Muxes CMPEN 411 VLSI Digital Circuits Spring 2011 Lecture 21: Shifters, Decoders, Muxes [Adapted from Rabaey s Digital Integrated Circuits, Second Edition, 2003 J. Rabaey, A. Chandrakasan, B. Nikolic] Sp11 CMPEN

More information

LOGIC CIRCUITS. Basic Experiment and Design of Electronics

LOGIC CIRCUITS. Basic Experiment and Design of Electronics Basic Experiment and Design of Electronics LOGIC CIRCUITS Ho Kyung Kim, Ph.D. hokyung@pusan.ac.kr School of Mechanical Engineering Pusan National University Outline Combinational logic circuits Output

More information

Bit-Sliced Design. EECS 141 F01 Arithmetic Circuits. A Generic Digital Processor. Full-Adder. The Binary Adder

Bit-Sliced Design. EECS 141 F01 Arithmetic Circuits. A Generic Digital Processor. Full-Adder. The Binary Adder it-liced Design Control EEC 141 F01 rithmetic Circuits Data-In Register dder hifter it 3 it 2 it 1 it 0 Data-Out Tile identical processing elements Generic Digital Processor Full-dder MEMORY Cin Full adder

More information

Lecture 6 Power Zhuo Feng. Z. Feng MTU EE4800 CMOS Digital IC Design & Analysis 2010

Lecture 6 Power Zhuo Feng. Z. Feng MTU EE4800 CMOS Digital IC Design & Analysis 2010 EE4800 CMOS Digital IC Design & Analysis Lecture 6 Power Zhuo Feng 6.1 Outline Power and Energy Dynamic Power Static Power 6.2 Power and Energy Power is drawn from a voltage source attached to the V DD

More information

Vidyalankar S.E. Sem. III [EXTC] Digital Electronics Prelim Question Paper Solution ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD = B

Vidyalankar S.E. Sem. III [EXTC] Digital Electronics Prelim Question Paper Solution ABCD ABCD ABCD ABCD ABCD ABCD ABCD ABCD = B . (a). (b). (c) S.E. Sem. III [EXTC] igital Electronics Prelim Question Paper Solution ABC ABC ABC ABC ABC ABC ABC ABC = B LHS = ABC ABC ABC ABC ABC ABC ABC ABC But ( ) = = ABC( ) ABC( ) ABC( ) ABC( )

More information

Lecture Outline. ESE 570: Digital Integrated Circuits and VLSI Fundamentals. Total Power. Energy and Power Optimization. Worksheet Problem 1

Lecture Outline. ESE 570: Digital Integrated Circuits and VLSI Fundamentals. Total Power. Energy and Power Optimization. Worksheet Problem 1 ESE 570: Digital Integrated Circuits and VLSI Fundamentals Lec 16: March 20, 2018 Energy and Power Optimization, Design Space Exploration Lecture Outline! Energy and Power Optimization " Tradeoffs! Design

More information

Introduction to Computer Engineering. CS/ECE 252, Fall 2012 Prof. Guri Sohi Computer Sciences Department University of Wisconsin Madison

Introduction to Computer Engineering. CS/ECE 252, Fall 2012 Prof. Guri Sohi Computer Sciences Department University of Wisconsin Madison Introduction to Computer Engineering CS/ECE 252, Fall 2012 Prof. Guri Sohi Computer Sciences Department University of Wisconsin Madison Chapter 3 Digital Logic Structures Slides based on set prepared by

More information

Digital Logic Appendix A

Digital Logic Appendix A Digital Logic Appendix A Boolean Algebra Gates Combinatorial Circuits Sequential Circuits 1 Boolean Algebra George Boole ideas 1854 Claude Shannon, apply to circuit design, 1938 Describe digital circuitry

More information

Boolean Algebra and Digital Logic 2009, University of Colombo School of Computing

Boolean Algebra and Digital Logic 2009, University of Colombo School of Computing IT 204 Section 3.0 Boolean Algebra and Digital Logic Boolean Algebra 2 Logic Equations to Truth Tables X = A. B + A. B + AB A B X 0 0 0 0 3 Sum of Products The OR operation performed on the products of

More information

Sample Test Paper - I

Sample Test Paper - I Scheme G Sample Test Paper - I Course Name : Computer Engineering Group Marks : 25 Hours: 1 Hrs. Q.1) Attempt any THREE: 09 Marks a) Define i) Propagation delay ii) Fan-in iii) Fan-out b) Convert the following:

More information

ESE 570: Digital Integrated Circuits and VLSI Fundamentals

ESE 570: Digital Integrated Circuits and VLSI Fundamentals ESE 570: Digital Integrated Circuits and VLSI Fundamentals Lec 17: March 23, 2017 Energy and Power Optimization, Design Space Exploration, Synchronous MOS Logic Lecture Outline! Energy and Power Optimization

More information

Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic. November Digital Integrated Circuits 2nd Sequential Circuits

Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic. November Digital Integrated Circuits 2nd Sequential Circuits igital Integrated Circuits A esign Perspective Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic esigning i Sequential Logic Circuits November 2002 Sequential Logic Inputs Current State COMBINATIONAL

More information

Adders, subtractors comparators, multipliers and other ALU elements

Adders, subtractors comparators, multipliers and other ALU elements CSE4: Components and Design Techniques for Digital Systems Adders, subtractors comparators, multipliers and other ALU elements Adders 2 Circuit Delay Transistors have instrinsic resistance and capacitance

More information

Fig. 1 CMOS Transistor Circuits (a) Inverter Out = NOT In, (b) NOR-gate C = NOT (A or B)

Fig. 1 CMOS Transistor Circuits (a) Inverter Out = NOT In, (b) NOR-gate C = NOT (A or B) 1 Introduction to Transistor-Level Logic Circuits 1 By Prawat Nagvajara At the transistor level of logic circuits, transistors operate as switches with the logic variables controlling the open or closed

More information

EE 466/586 VLSI Design. Partha Pande School of EECS Washington State University

EE 466/586 VLSI Design. Partha Pande School of EECS Washington State University EE 466/586 VLSI Design Partha Pande School of EECS Washington State University pande@eecs.wsu.edu Lecture 8 Power Dissipation in CMOS Gates Power in CMOS gates Dynamic Power Capacitance switching Crowbar

More information

Digital Integrated Circuits A Design Perspective

Digital Integrated Circuits A Design Perspective igital Integrated Circuits A esign Perspective Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic esigning Sequential Logic Circuits November 2002 Naming Conventions In our text: a latch is level sensitive

More information

Semiconductor memories

Semiconductor memories Semiconductor memories Semiconductor Memories Data in Write Memory cell Read Data out Some design issues : How many cells? Function? Power consuption? Access type? How fast are read/write operations? Semiconductor

More information

EE 330 Lecture 6. Improved Switch-Level Model Propagation Delay Stick Diagrams Technology Files

EE 330 Lecture 6. Improved Switch-Level Model Propagation Delay Stick Diagrams Technology Files EE 330 Lecture 6 Improved witch-level Model Propagation elay tick iagrams Technology Files Review from Last Time MO Transistor Qualitative iscussion of n-channel Operation Bulk ource Gate rain rain G Gate

More information

CprE 281: Digital Logic

CprE 281: Digital Logic CprE 28: Digital Logic Instructor: Alexander Stoytchev http://www.ece.iastate.edu/~alexs/classes/ Simple Processor CprE 28: Digital Logic Iowa State University, Ames, IA Copyright Alexander Stoytchev Digital

More information

TYPICAL QUESTIONS & ANSWERS

TYPICAL QUESTIONS & ANSWERS TYPICAL QUESTIONS & ANSWERS PART - I OJECTIVE TYPE QUESTIONS Each Question carries 2 marks. Choose correct or the best alternative in the following: Q.1 The NAN gate output will be low if the two inputs

More information

Boolean Algebra. Digital Logic Appendix A. Postulates, Identities in Boolean Algebra How can I manipulate expressions?

Boolean Algebra. Digital Logic Appendix A. Postulates, Identities in Boolean Algebra How can I manipulate expressions? Digital Logic Appendix A Gates Combinatorial Circuits Sequential Circuits Other operations NAND A NAND B = NOT ( A ANDB) = AB NOR A NOR B = NOT ( A ORB) = A + B Truth tables What is the result of the operation

More information

SUMMER 18 EXAMINATION Subject Name: Principles of Digital Techniques Model Answer Subject Code:

SUMMER 18 EXAMINATION Subject Name: Principles of Digital Techniques Model Answer Subject Code: Important Instructions to examiners: 1) The answers should be examined by key words and not as word-to-word as given in the model answer scheme. 2) The model answer and the answer written by candidate

More information

EE141. Lecture 28 Multipliers. Lecture #20. Project Phase 2 Posted. Sign up for one of three project goals today

EE141. Lecture 28 Multipliers. Lecture #20. Project Phase 2 Posted. Sign up for one of three project goals today EE141-pring 2008 igital Integrated ircuits Lecture 28 Multipliers 1 Announcements Project Phase 2 Posted ign up for one of three project goals today Graded Phase 1 and Midterm 2 will be returned next Fr

More information

Arithmetic Circuits-2

Arithmetic Circuits-2 Arithmetic Circuits-2 Multipliers Array multipliers Shifters Barrel shifter Logarithmic shifter ECE 261 Krish Chakrabarty 1 Binary Multiplication M-1 X = X i 2 i i=0 Multiplicand N-1 Y = Y i 2 i i=0 Multiplier

More information

DIGITAL LOGIC CIRCUITS

DIGITAL LOGIC CIRCUITS DIGITAL LOGIC CIRCUITS Introduction Logic Gates Boolean Algebra Map Specification Combinational Circuits Flip-Flops Sequential Circuits Memory Components Integrated Circuits Digital Computers 2 LOGIC GATES

More information

CMOS logic gates. João Canas Ferreira. March University of Porto Faculty of Engineering

CMOS logic gates. João Canas Ferreira. March University of Porto Faculty of Engineering CMOS logic gates João Canas Ferreira University of Porto Faculty of Engineering March 2016 Topics 1 General structure 2 General properties 3 Cell layout João Canas Ferreira (FEUP) CMOS logic gates March

More information

Design of Sequential Circuits

Design of Sequential Circuits Design of Sequential Circuits Seven Steps: Construct a state diagram (showing contents of flip flop and inputs with next state) Assign letter variables to each flip flop and each input and output variable

More information

Digital Integrated Circuits A Design Perspective

Digital Integrated Circuits A Design Perspective igital Integrated Circuits A esign Perspective Jan M. Rabaey Anantha Chandrakasan Borivoje Nikolic esigning Sequential Logic Circuits November 2002 Sequential Logic Inputs Current State COMBINATIONAL LOGIC

More information

Digital Circuits. 1. Inputs & Outputs are quantized at two levels. 2. Binary arithmetic, only digits are 0 & 1. Position indicates power of 2.

Digital Circuits. 1. Inputs & Outputs are quantized at two levels. 2. Binary arithmetic, only digits are 0 & 1. Position indicates power of 2. Digital Circuits 1. Inputs & Outputs are quantized at two levels. 2. inary arithmetic, only digits are 0 & 1. Position indicates power of 2. 11001 = 2 4 + 2 3 + 0 + 0 +2 0 16 + 8 + 0 + 0 + 1 = 25 Digital

More information

Menu. Master-Slave Flip-Flop

Menu. Master-Slave Flip-Flop Menu Clocks and Master-lave Flip-Flops J-K and other Flip-Flops Truth table & excitation table Adders (see [Lam: pg 130]) Counters Look into my... 1 CLK Master-lave Flip-Flop Master-lave Latch/Flip-Flop

More information

EE141Microelettronica. CMOS Logic

EE141Microelettronica. CMOS Logic Microelettronica CMOS Logic CMOS logic Power consumption in CMOS logic gates Where Does Power Go in CMOS? Dynamic Power Consumption Charging and Discharging Capacitors Short Circuit Currents Short Circuit

More information

Review for Final Exam

Review for Final Exam CSE140: Components and Design Techniques for Digital Systems Review for Final Exam Mohsen Imani CAPE Please submit your evaluations!!!! RTL design Use the RTL design process to design a system that has

More information

Boolean Algebra. Digital Logic Appendix A. Boolean Algebra Other operations. Boolean Algebra. Postulates, Identities in Boolean Algebra

Boolean Algebra. Digital Logic Appendix A. Boolean Algebra Other operations. Boolean Algebra. Postulates, Identities in Boolean Algebra Digital Logic Appendix A Gates Combinatorial Circuits Sequential Circuits George Boole ideas 1854 Claude Shannon, apply to circuit design, 1938 (piirisuunnittelu) Describe digital circuitry function programming

More information

CSE140: Components and Design Techniques for Digital Systems. Decoders, adders, comparators, multipliers and other ALU elements. Tajana Simunic Rosing

CSE140: Components and Design Techniques for Digital Systems. Decoders, adders, comparators, multipliers and other ALU elements. Tajana Simunic Rosing CSE4: Components and Design Techniques for Digital Systems Decoders, adders, comparators, multipliers and other ALU elements Tajana Simunic Rosing Mux, Demux Encoder, Decoder 2 Transmission Gate: Mux/Tristate

More information

GMU, ECE 680 Physical VLSI Design

GMU, ECE 680 Physical VLSI Design ECE680: Physical VLSI esign Chapter IV esigning Sequential Logic Circuits (Chapter 7) 1 Sequential Logic Inputs Current State COMBINATIONAL LOGIC Registers Outputs Next state 2 storage mechanisms positive

More information

VLSI. Faculty. Srikanth

VLSI. Faculty. Srikanth J.B. Institute of Engineering & Technology Department of CSE COURSE FILE VLSI Faculty Srikanth J.B. Institute of Engineering & Technology Department of CSE SYLLABUS Subject Name: VLSI Subject Code: VLSI

More information

9/18/2008 GMU, ECE 680 Physical VLSI Design

9/18/2008 GMU, ECE 680 Physical VLSI Design ECE680: Physical VLSI esign Chapter IV esigning Sequential Logic Circuits (Chapter 7) 1 Sequential Logic Inputs Current State COMBINATIONAL LOGIC Registers Outputs Next state 2 storage mechanisms positive

More information

Testability. Shaahin Hessabi. Sharif University of Technology. Adapted from the presentation prepared by book authors.

Testability. Shaahin Hessabi. Sharif University of Technology. Adapted from the presentation prepared by book authors. Testability Lecture 6: Logic Simulation Shaahin Hessabi Department of Computer Engineering Sharif University of Technology Adapted from the presentation prepared by book authors Slide 1 of 27 Outline What

More information

Digital Logic Design - Chapter 4

Digital Logic Design - Chapter 4 Digital Logic Design - Chapter 4 1. Analyze the latch circuit shown below by obtaining timing diagram for the circuit; include propagation delays. Y This circuit has two external input and one feedback

More information

Circuit A. Circuit B

Circuit A. Circuit B UNIVERSITY OF CALIFORNIA College of Engineering Department of Electrical Engineering and Computer Sciences Last modified on November 19, 2006 by Karl Skucha (kskucha@eecs) Borivoje Nikolić Homework #9

More information

Chapter 7. Synchronous Sequential Networks. Excitation for

Chapter 7. Synchronous Sequential Networks. Excitation for Chapter 7 Excitation for Synchronous Sequential Networks J. C. Huang, 2004 igital Logic esign 1 Structure of a clocked synchronous sequential network Mealy model of a clocked synchronous sequential network

More information

Review for Test 1 : Ch1 5

Review for Test 1 : Ch1 5 Review for Test 1 : Ch1 5 October 5, 2006 Typeset by FoilTEX Positional Numbers 527.46 10 = (5 10 2 )+(2 10 1 )+(7 10 0 )+(4 10 1 )+(6 10 2 ) 527.46 8 = (5 8 2 ) + (2 8 1 ) + (7 8 0 ) + (4 8 1 ) + (6 8

More information

CS/COE1541: Introduction to Computer Architecture. Logic Design Review. Sangyeun Cho. Computer Science Department University of Pittsburgh

CS/COE1541: Introduction to Computer Architecture. Logic Design Review. Sangyeun Cho. Computer Science Department University of Pittsburgh CS/COE54: Introduction to Computer Architecture Logic Design Review Sangyeun Cho Computer Science Department Logic design? Digital hardware is implemented by way of logic design Digital circuits process

More information

CSC9R6 Computer Design. Practical Digital Logic

CSC9R6 Computer Design. Practical Digital Logic CSC9R6 Computer Design Practical Digital Logic 1 References (for this part of CSC9R6) Hamacher et al: Computer Organization App A. In library Floyd: Digital Fundamentals Ch 1, 3-6, 8-10 web page: www.prenhall.com/floyd/

More information

ALU A functional unit

ALU A functional unit ALU A functional unit that performs arithmetic operations such as ADD, SUB, MPY logical operations such as AND, OR, XOR, NOT on given data types: 8-,16-,32-, or 64-bit values A n-1 A n-2... A 1 A 0 B n-1

More information

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits

Digital Integrated Circuits A Design Perspective. Arithmetic Circuits Digital Integrated Circuits Design Perspective rithmetic Circuits Reference: Digital Integrated Circuits, 2nd edition, Jan M. Rabaey, nantha Chandrakasan and orivoje Nikolic Disclaimer: slides adapted

More information

KINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING QUESTION BANK

KINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING QUESTION BANK KINGS COLLEGE OF ENGINEERING DEPARTMENT OF ELECTRONICS AND COMMUNICATION ENGINEERING QUESTION BANK SUBJECT CODE: EC 1354 SUB.NAME : VLSI DESIGN YEAR / SEMESTER: III / VI UNIT I MOS TRANSISTOR THEORY AND

More information

Name: Answers. Mean: 83, Standard Deviation: 12 Q1 Q2 Q3 Q4 Q5 Q6 Total. ESE370 Fall 2015

Name: Answers. Mean: 83, Standard Deviation: 12 Q1 Q2 Q3 Q4 Q5 Q6 Total. ESE370 Fall 2015 University of Pennsylvania Department of Electrical and System Engineering Circuit-Level Modeling, Design, and Optimization for Digital Systems ESE370, Fall 2015 Final Tuesday, December 15 Problem weightings

More information

EE 330 Lecture 37. Digital Circuits. Other Logic Families. Propagation Delay basic characterization Device Sizing (Inverter and multiple-input gates)

EE 330 Lecture 37. Digital Circuits. Other Logic Families. Propagation Delay basic characterization Device Sizing (Inverter and multiple-input gates) EE 330 Lecture 37 Digital Circuits Other Logic Families Static Power Dissipation Propagation Delay basic characterization Device Sizing (Inverter and multiple-input gates) Review from Last Time Inverter

More information

Serial Parallel Multiplier Design in Quantum-dot Cellular Automata

Serial Parallel Multiplier Design in Quantum-dot Cellular Automata Serial Parallel Multiplier Design in Quantum-dot Cellular Automata Heumpil Cho and Earl E. Swartzlander, Jr. Application Specific Processor Group Department of Electrical and Computer Engineering The University

More information

We are here. Assembly Language. Processors Arithmetic Logic Units. Finite State Machines. Circuits Gates. Transistors

We are here. Assembly Language. Processors Arithmetic Logic Units. Finite State Machines. Circuits Gates. Transistors CSC258 Week 3 1 Logistics If you cannot login to MarkUs, email me your UTORID and name. Check lab marks on MarkUs, if it s recorded wrong, contact Larry within a week after the lab. Quiz 1 average: 86%

More information

The Digital Logic Level

The Digital Logic Level The Digital Logic Level Wolfgang Schreiner Research Institute for Symbolic Computation (RISC-Linz) Johannes Kepler University Wolfgang.Schreiner@risc.uni-linz.ac.at http://www.risc.uni-linz.ac.at/people/schreine

More information

Floating Point Representation and Digital Logic. Lecture 11 CS301

Floating Point Representation and Digital Logic. Lecture 11 CS301 Floating Point Representation and Digital Logic Lecture 11 CS301 Administrative Daily Review of today s lecture w Due tomorrow (10/4) at 8am Lab #3 due Friday (9/7) 1:29pm HW #5 assigned w Due Monday 10/8

More information

Section 3: Combinational Logic Design. Department of Electrical Engineering, University of Waterloo. Combinational Logic

Section 3: Combinational Logic Design. Department of Electrical Engineering, University of Waterloo. Combinational Logic Section 3: Combinational Logic Design Major Topics Design Procedure Multilevel circuits Design with XOR gates Adders and Subtractors Binary parallel adder Decoders Encoders Multiplexers Programmed Logic

More information

ECE 342 Electronic Circuits. 3. MOS Transistors

ECE 342 Electronic Circuits. 3. MOS Transistors ECE 342 Electronic Circuits 3. MOS Transistors Jose E. Schutt-Aine Electrical & Computer Engineering University of Illinois jschutt@emlab.uiuc.edu 1 NMOS Transistor Typically L = 0.1 to 3 m, W = 0.2 to

More information

CMSC 313 Lecture 25 Registers Memory Organization DRAM

CMSC 313 Lecture 25 Registers Memory Organization DRAM CMSC 33 Lecture 25 Registers Memory Organization DRAM UMBC, CMSC33, Richard Chang A-75 Four-Bit Register Appendix A: Digital Logic Makes use of tri-state buffers so that multiple registers

More information

CS61C : Machine Structures

CS61C : Machine Structures CS 61C L15 Blocks (1) inst.eecs.berkeley.edu/~cs61c/su05 CS61C : Machine Structures Lecture #15: Combinational Logic Blocks Outline CL Blocks Latches & Flip Flops A Closer Look 2005-07-14 Andy Carle CS

More information

Topics to be Covered. capacitance inductance transmission lines

Topics to be Covered. capacitance inductance transmission lines Topics to be Covered Circuit Elements Switching Characteristics Power Dissipation Conductor Sizes Charge Sharing Design Margins Yield resistance capacitance inductance transmission lines Resistance of

More information

Lecture 1: Circuits & Layout

Lecture 1: Circuits & Layout Lecture 1: Circuits & Layout Outline q A Brief History q CMOS Gate esign q Pass Transistors q CMOS Latches & Flip-Flops q Standard Cell Layouts q Stick iagrams 2 A Brief History q 1958: First integrated

More information

EECS 312: Digital Integrated Circuits Final Exam Solutions 23 April 2009

EECS 312: Digital Integrated Circuits Final Exam Solutions 23 April 2009 Signature: EECS 312: Digital Integrated Circuits Final Exam Solutions 23 April 2009 Robert Dick Show your work. Derivations are required for credit; end results are insufficient. Closed book. You may use

More information

EECS 312: Digital Integrated Circuits Midterm Exam 2 December 2010

EECS 312: Digital Integrated Circuits Midterm Exam 2 December 2010 Signature: EECS 312: Digital Integrated Circuits Midterm Exam 2 December 2010 Robert Dick Show your work. Derivations are required for credit; end results are insufficient. Closed book. No electronic mental

More information

Chapter 5. Digital Design and Computer Architecture, 2 nd Edition. David Money Harris and Sarah L. Harris. Chapter 5 <1>

Chapter 5. Digital Design and Computer Architecture, 2 nd Edition. David Money Harris and Sarah L. Harris. Chapter 5 <1> Chapter 5 Digital Design and Computer Architecture, 2 nd Edition David Money Harris and Sarah L. Harris Chapter 5 Chapter 5 :: Topics Introduction Arithmetic Circuits umber Systems Sequential Building

More information

CS 140 Lecture 14 Standard Combinational Modules

CS 140 Lecture 14 Standard Combinational Modules CS 14 Lecture 14 Standard Combinational Modules Professor CK Cheng CSE Dept. UC San Diego Some slides from Harris and Harris 1 Part III. Standard Modules A. Interconnect B. Operators. Adders Multiplier

More information

Hakim Weatherspoon CS 3410 Computer Science Cornell University

Hakim Weatherspoon CS 3410 Computer Science Cornell University Hakim Weatherspoon CS 3410 Computer Science Cornell University The slides are the product of many rounds of teaching CS 3410 by Professors Weatherspoon, Bala, Bracy, and Sirer. memory inst 32 register

More information

CS61C : Machine Structures

CS61C : Machine Structures inst.eecs.berkeley.edu/~cs61c/su05 CS61C : Machine Structures Lecture #15: Combinational Logic Blocks 2005-07-14 CS 61C L15 Blocks (1) Andy Carle Outline CL Blocks Latches & Flip Flops A Closer Look CS

More information

CSE140: Components and Design Techniques for Digital Systems. Logic minimization algorithm summary. Instructor: Mohsen Imani UC San Diego

CSE140: Components and Design Techniques for Digital Systems. Logic minimization algorithm summary. Instructor: Mohsen Imani UC San Diego CSE4: Components and Design Techniques for Digital Systems Logic minimization algorithm summary Instructor: Mohsen Imani UC San Diego Slides from: Prof.Tajana Simunic Rosing & Dr.Pietro Mercati Definition

More information

ECE 407 Computer Aided Design for Electronic Systems. Simulation. Instructor: Maria K. Michael. Overview

ECE 407 Computer Aided Design for Electronic Systems. Simulation. Instructor: Maria K. Michael. Overview 407 Computer Aided Design for Electronic Systems Simulation Instructor: Maria K. Michael Overview What is simulation? Design verification Modeling Levels Modeling circuits for simulation True-value simulation

More information

COMBINATIONAL LOGIC CIRCUITS. Dr. Mudathir A. Fagiri

COMBINATIONAL LOGIC CIRCUITS. Dr. Mudathir A. Fagiri COMBINATIONAL LOGIC CIRCUITS Dr. Mudathir A. Fagiri Standard Combinational Modules Decoder: Decode address Encoder: Encode address Multiplexer (Mux): Select data by address Demultiplexier (DeMux): Direct

More information

Hardware Design I Chap. 4 Representative combinational logic

Hardware Design I Chap. 4 Representative combinational logic Hardware Design I Chap. 4 Representative combinational logic E-mail: shimada@is.naist.jp Already optimized circuits There are many optimized circuits which are well used You can reduce your design workload

More information

CHW 261: Logic Design

CHW 261: Logic Design CHW 26: Logic Design Instructors: Prof. Hala Zayed Dr. Ahmed Shalaby http://www.bu.edu.eg/staff/halazayed4 http://bu.edu.eg/staff/ahmedshalaby4# Slide Digital Fundamentals Digital Concepts Slide 2 What?

More information

UNIVERSITI TENAGA NASIONAL. College of Information Technology

UNIVERSITI TENAGA NASIONAL. College of Information Technology UNIVERSITI TENAGA NASIONAL College of Information Technology BACHELOR OF COMPUTER SCIENCE (HONS.) FINAL EXAMINATION SEMESTER 2 2012/2013 DIGITAL SYSTEMS DESIGN (CSNB163) January 2013 Time allowed: 3 hours

More information

Digital Logic: Boolean Algebra and Gates. Textbook Chapter 3

Digital Logic: Boolean Algebra and Gates. Textbook Chapter 3 Digital Logic: Boolean Algebra and Gates Textbook Chapter 3 Basic Logic Gates XOR CMPE12 Summer 2009 02-2 Truth Table The most basic representation of a logic function Lists the output for all possible

More information

Adders, subtractors comparators, multipliers and other ALU elements

Adders, subtractors comparators, multipliers and other ALU elements CSE4: Components and Design Techniques for Digital Systems Adders, subtractors comparators, multipliers and other ALU elements Instructor: Mohsen Imani UC San Diego Slides from: Prof.Tajana Simunic Rosing

More information

Practice 3: Semiconductors

Practice 3: Semiconductors Practice 3: Semiconductors Digital Electronic Circuits Semester A 2012 VLSI Fabrication Process VLSI Very Large Scale Integration The ability to fabricate many devices on a single substrate within a given

More information

EECS150 - Digital Design Lecture 17 - Combinational Logic Circuits. Limitations on Clock Rate - Review

EECS150 - Digital Design Lecture 17 - Combinational Logic Circuits. Limitations on Clock Rate - Review EECS150 - Digital Design Lecture 17 - Combinational Logic Circuits Finish off Timing First March 17, 2009 John Wawrzynek Spring 2009 EECS150 - Lec17-timing Page 1 Limitations on Clock Rate - Review 1 Logic

More information