COSC 243. Sequential Logic. COSC 243 (Computer Architecture) Lecture 5 - Sequential Logic 1
|
|
|
- Janel Smith
- 5 years ago
- Views:
Transcription
1 COC 243 equential Logic COC 243 (Computer Architecture) Lecture 5 - equential Logic 1
2 Overview Last Lecture This Lecture equential logic circuits ource: Chapter 11 (10 th edition) Next Lecture Computer architecture 1 COC 243 (Computer Architecture) Lecture 5 - equential Logic 2
3 Introduction Combinatorial logic circuit - the same inputs always produces the same outputs (last lecture) Inputs Combinational circuit Outputs equential logic circuit - outputs depend not only on the present inputs, but also on the past history (this lecture) Inputs Combinational circuit Outputs Memory COC 243 (Computer Architecture) Lecture 5 - equential Logic 3
4 Introduction (cont) Types of equential Circuits ynchronous tate changes occur in synchronization to a clock signal Input changes occur between clock pulses tate changes occur at the clock pulses Asynchronous tate changes occur as changes in inputs occur Event driven We will not study these COC 243 (Computer Architecture) Lecture 5 - equential Logic 4
5 Memory Circuits et-reset latch D-type flip-flop T-type flip-flop JK-type flip-flop COC 243 (Computer Architecture) Lecture 5 - equential Logic 5
6 et-eset Latch If you tie the output of the circuit to one of its inputs then the circuit saves state. In this case output is on tart with a = = = 0 ( = 1), the latch stores a 0 NO A B COC 243 (Computer Architecture) Lecture 5 - equential Logic 6
7 = 0 et () the Latch NO A B Now toggle = 1 (set the latch) = 1, Now toggle = 1 (set the latch) COC 243 (Computer Architecture) Lecture 5 - equential Logic 7
8 eset () Latch = 1 Now toggle = 1 (reset the latch) NO A B = 0, Now toggle = 1 (reset the latch) COC 243 (Computer Architecture) Lecture 5 - equential Logic 8
9 et-eset Latch egardless of, By setting = 1 the latch is set ( = 1) By setting = 1 the latch is reset ( = 0) Action 0 0 None 0 1 =0 1 0 =1 1 1 Invalid (why?) From: COC 243 (Computer Architecture) Lecture 5 - equential Logic 9
10 Clocked (Enabled) Flip-Flop The latch is a nice trick If we add a control line to the circuit then we can turn the latch on and off when we want to Enable COC 243 (Computer Architecture) Lecture 5 - equential Logic 10
11 Clocked NAND flip-flop By inverting the signals into the latch, a flip-flop can be built using only NAND gates (De Morgan) And recall that a NAND gate can be built with 2 transistors Enable COC 243 (Computer Architecture) Lecture 5 - equential Logic 11
12 D-Type Flip-Flop ince =, Combine into one line: D D Enable D >C D-Type flip-flop Triangle indicates edge-triggered COC 243 (Computer Architecture) Lecture 5 - equential Logic 12
13 7400 uad 2-Input NAND Gate COC 243 (Computer Architecture) Lecture 5 - equential Logic 13
14 D-Type Flip-Flop Data flip-flop (Delay flip-flop) et or reset D Toggle the enable line (from 0 to 1) D is stored Toggle the enable line (from 1 to 0) D can vary (wobble) freely There is a 1 clock-cycle delay between D and Enable (Clock) Data Output Time t 1 t 2 t 3 t 4 t 5 COC 243 (Computer Architecture) Lecture 5 - equential Logic 14
15 T Flip-Flop Toggle Flip-Flop The output is inverted when Toggle is held high Enable is clocked Toggle Enable COC 243 (Computer Architecture) Lecture 5 - equential Logic 15
16 JK Flip-Flop One flip-flop to rule them all (the universal flip-flop) >C J K Enable J K JK flip-flop J K t+1 Meaning 0 0 t No Change eset et 1 1 t Toggle COC 243 (Computer Architecture) Lecture 5 - equential Logic 16
17 JK Flip-Flop One flip-flop to rule them all (the universal flip-flop) et J = K to get T flip-flop et J = K to get a D flip-flop >C J >C J >C J K K K JK flip-flop T flip-flop D flip-flop COC 243 (Computer Architecture) Lecture 5 - equential Logic 17
18 Asynchronous ipple Counter A 1-bit counter switches between 0 and 1 each cycle It s a toggle flip-flop It s also a divide by 2 Clock >C J High K Clock Data Output The output square wave is half the frequency of the input square wave Time t 1 t 2 t 3 t 4 t 5 COC 243 (Computer Architecture) Lecture 5 - equential Logic 18
19 Asynchronous ipple Counter A 2-bit counter The low bit toggles every full clock cycle The high bit toggles at half the clock cycle rate Tie the output of the low bit to the input of the high bit 0 Clock >C 0 >C 1 1 High J K J K COC 243 (Computer Architecture) Lecture 5 - equential Logic 19
20 ynchronous Counter The async counter has the problem that the propagation delay is inconsistent; a function of the number of transistors the signal passes through Ideally the flip-flops will clock at the same time This is achieved with a synchronous counter Logic is added to set the next state based on the previous state Clock >C 0 >C 1 >C 2 >C 3 High J K J K J K J K COC 243 (Computer Architecture) Lecture 5 - equential Logic 20
21 equential Circuits COC 243 (Computer Architecture) Lecture 5 - equential Logic 21
22 nakes and Ladders From: COC 243 (Computer Architecture) Lecture 5 - equential Logic 22
23 Binary nakes and Ladders = move 1 1 = move 2 In this case a 3*3 board and a binary die (0 or 1) COC 243 (Computer Architecture) Lecture 5 - equential Logic 23
24 nakes and Ladders tate Transition Diagram 1 1 Board 0 = move 1 1 = move 2 COC 243 (Computer Architecture) Lecture 5 - equential Logic 24
25 Detect a Given Input equence Detect the input sequence ingle input x ingle output z Consider repeating sequences COC 243 (Computer Architecture) Lecture 5 - equential Logic 25
26 tate Transition Diagram Z = 0 Z = 1 COC 243 (Computer Architecture) Lecture 5 - equential Logic 26
27 Detect a Given Input equence Initial state table Input Present tate Next tate Output COC 243 (Computer Architecture) Lecture 5 - equential Logic 27
28 Detect a Given Input equence 6 states 3 state variables (to count to 6) A, B, C Using A, B, C (in that order), let 0 = = = = = = tore the current state in 3 flip-flops COC 243 (Computer Architecture) Lecture 5 - equential Logic 28
29 Detect a Given Input equence Complete state table Present tate Input Next tate Output A B C X A' B' C' Z COC 243 (Computer Architecture) Lecture 5 - equential Logic 29
30 Detect a Given Input equence A = ABCX + ABCX B = ABCX + ABCX + ABCX + ABCX C = ABCX + ABCX + ABCX + ABCX Z = ABCX + ABCX COC 243 (Computer Architecture) Lecture 5 - equential Logic 30
31 Detect a Given Input equence X Z ABC Combinatorial Logic Circuit A B C A B C D D D Clock >C >C >C COC 243 (Computer Architecture) Lecture 5 - equential Logic 31
32 egisters D7 D6 D5 D4 D3 D2 D1 D0 D D D D D D D D >C >C >C >C >C >C >C >C Clock Load Enable COC 243 (Computer Architecture) Lecture 5 - equential Logic 32
33 Tristate Buffer The clock is used to enable flip-flop load The output can be controlled with a 3-state buffer Or a 3-state inverter D Y Input (D) Output (Y) E Output Enable (E) COC 243 (Computer Architecture) Lecture 5 - equential Logic 33
34 74L374 3-TATE Octal D- Type Transparent Latches and Edge- Triggered Flip-Flops Output Control read line Clock write line COC 243 (Computer Architecture) Lecture 5 - equential Logic 34
Lecture 8: Sequential Logic
Lecture 8: Sequential Logic Last lecture discussed how we can use digital electronics to do combinatorial logic we designed circuits that gave an immediate output when presented with a given set of inputs
YEDITEPE UNIVERSITY DEPARTMENT OF COMPUTER ENGINEERING. EXPERIMENT VIII: FLIP-FLOPS, COUNTERS 2014 Fall
YEDITEPE UNIVERSITY DEPARTMENT OF COMPUTER ENGINEERING EXPERIMENT VIII: FLIP-FLOPS, COUNTERS 2014 Fall Objective: - Dealing with the operation of simple sequential devices. Learning invalid condition in
LATCHES & FLIP-FLOP. Chapter 7
LATCHES & FLIP-FLOP Chapter 7 INTRODUCTION Latch and flip flops are categorized as bistable devices which have two stable states,called SET and RESET. They can retain either of this states indefinitely
Asynchronous (Ripple) Counters
Circuits for counting events are frequently used in computers and other digital systems. Since a counter circuit must remember its past states, it has to possess memory. The chapter about flip-flops introduced
EMT 125 Digital Electronic Principles I CHAPTER 6 : FLIP-FLOP
EMT 125 Digital Electronic Principles I CHAPTER 6 : FLIP-FLOP 1 Chapter Overview Latches Gated Latches Edge-triggered flip-flops Master-slave flip-flops Flip-flop operating characteristics Flip-flop applications
3 Flip-Flops. The latch is a logic block that has 2 stable states (0) or (1). The RS latch can be forced to hold a 1 when the Set line is asserted.
3 Flip-Flops Flip-flops and latches are digital memory circuits that can remain in the state in which they were set even after the input signals have been removed. This means that the circuits have a memory
(CSC-3501) Lecture 7 (07 Feb 2008) Seung-Jong Park (Jay) CSC S.J. Park. Announcement
Seung-Jong Park (Jay) http://www.csc.lsu.edu/~sjpark Computer Architecture (CSC-3501) Lecture 7 (07 Feb 2008) 1 Announcement 2 1 Combinational vs. Sequential Logic Combinational Logic Memoryless Outputs
Experiment 8 Introduction to Latches and Flip-Flops and registers
Experiment 8 Introduction to Latches and Flip-Flops and registers Introduction: The logic circuits that have been used until now were combinational logic circuits since the output of the device depends
cascading flip-flops for proper operation clock skew Hardware description languages and sequential logic
equential logic equential circuits simple circuits with feedback latches edge-triggered flip-flops Timing methodologies cascading flip-flops for proper operation clock skew Basic registers shift registers
6. Sequential Logic Flip-Flops
ection 6. equential Logic Flip-Flops Page of 5 6. equential Logic Flip-Flops ombinatorial components: their output values are computed entirely from their present input values. equential components: their
Other Flip-Flops. Lecture 27 1
Other Flip-Flops Other types of flip-flops can be constructed by using the D flip-flop and external logic. Two flip-flops less widely used in the design of digital systems are the JK and T flip-flops.
EE292: Fundamentals of ECE
EE292: Fundamentals of ECE Fall 2012 TTh 10:00-11:15 SEB 1242 Lecture 23 121120 http://www.ee.unlv.edu/~b1morris/ee292/ 2 Outline Review Combinatorial Logic Sequential Logic 3 Combinatorial Logic Circuits
ASYNCHRONOUS COUNTER CIRCUITS
ASYNCHRONOUS COUNTER CIRCUITS Asynchronous counters do not have a common clock that controls all the Hipflop stages. The control clock is input into the first stage, or the LSB stage of the counter. The
Chapter. Synchronous Sequential Circuits
Chapter 5 Synchronous Sequential Circuits Logic Circuits- Review Logic Circuits 2 Combinational Circuits Consists of logic gates whose outputs are determined from the current combination of inputs. Performs
RS flip-flop using NOR gate
RS flip-flop using NOR gate Triggering and triggering methods Triggering : Applying train of pulses, to set or reset the memory cell is known as Triggering. Triggering methods:- There are basically two
ENGR 303 Introduction to Logic Design Lecture 10. Dr. Chuck Brown Engineering and Computer Information Science Folsom Lake College
ENG 33 Introduction to Logic esign Lecture r. Chuck Brown Engineering and Computer Information cience Folsom Lake College Outline for Todays Lecture equential Circuits Latches egisters Flip-Flops ENG 33
Sequential logic. Circuits with feedback. How to control feedback? Sequential circuits. Timing methodologies. Basic registers
equential logic equential circuits simple circuits with feedback latches edge-triggered flip-flops Timing methodologies cascading flip-flops for proper operation clock skew Basic registers shift registers
Counter dan Register
Counter dan Register Introduction Circuits for counting events are frequently used in computers and other digital systems. Since a counter circuit must remember its past states, it has to possess memory.
Chapter 6. Flip-Flops and Simple Flip-Flop Applications
Chapter 6 Flip-Flops and Simple Flip-Flop Applications Basic bistable element It is a circuit having two stable conditions (states). It can be used to store binary symbols. J. C. Huang, 2004 Digital Logic
Unit 11. Latches and Flip-Flops
Unit 11 Latches and Flip-Flops 1 Combinational Circuits A combinational circuit consists of logic gates whose outputs, at any time, are determined by combining the values of the inputs. For n input variables,
RS flip-flop using NOR gate
RS flip-flop using NOR gate Triggering and triggering methods Triggering : Applying train of pulses, to set or reset the memory cell is known as Triggering. Triggering methods:- There are basically two
Digital Logic Design ENEE x. Lecture 19
Digital Logic Design ENEE 244-010x Lecture 19 Announcements Homework 8 due on Monday, 11/23. Agenda Last time: Timing Considerations (6.3) Master-Slave Flip-Flops (6.4) This time: Edge-Triggered Flip-Flops
Counters
Counters A counter is the most versatile and useful subsystems in the digital system. A counter driven by a clock can be used to count the number of clock cycles. Since clock pulses occur at known intervals,
Name Of The Experiment: Sequential circuit design Latch, Flip-flop and Registers
EEE 304 Experiment No. 07 Name Of The Experiment: Sequential circuit design Latch, Flip-flop and Registers Important: Submit your Prelab at the beginning of the lab. Prelab 1: Construct a S-R Latch and
Digital Logic Design Sequential Circuits. Dr. Basem ElHalawany
Digital Logic Design Sequential Circuits Dr. Basem ElHalawany Combinational vs Sequential inputs X Combinational Circuits outputs Z A combinational circuit: At any time, outputs depends only on inputs
CHAPTER 4: Logic Circuits
CHAPTER 4: Logic Circuits II. Sequential Circuits Combinational circuits o The outputs depend only on the current input values o It uses only logic gates, decoders, multiplexers, ALUs Sequential circuits
Sequential Circuits: Latches & Flip-Flops
Sequential Circuits: Latches & Flip-Flops Overview Storage Elements Latches SR, JK, D, and T Characteristic Tables, Characteristic Equations, Eecution Tables, and State Diagrams Standard Symbols Flip-Flops
Flip-Flops. Because of this the state of the latch may keep changing in circuits with feedback as long as the clock pulse remains active.
Flip-Flops Objectives The objectives of this lesson are to study: 1. Latches versus Flip-Flops 2. Master-Slave Flip-Flops 3. Timing Analysis of Master-Slave Flip-Flops 4. Different Types of Master-Slave
Sequential Logic and Clocked Circuits
Sequential Logic and Clocked Circuits Clock or Timing Device Input Variables State or Memory Element Combinational Logic Elements From combinational logic, we move on to sequential logic. Sequential logic
Introduction. NAND Gate Latch. Digital Logic Design 1 FLIP-FLOP. Digital Logic Design 1
2007 Introduction BK TP.HCM FLIP-FLOP So far we have seen Combinational Logic The output(s) depends only on the current values of the input variables Here we will look at Sequential Logic circuits The
Logic Design. Flip Flops, Registers and Counters
Logic Design Flip Flops, Registers and Counters Introduction Combinational circuits: value of each output depends only on the values of inputs Sequential Circuits: values of outputs depend on inputs and
DIGITAL CIRCUIT COMBINATORIAL LOGIC
DIGITAL CIRCUIT COMBINATORIAL LOGIC Logic levels: one zero true false high low CMOS logic levels: 1 => 0.7 V DD 0.4 V DD = noise margin 0 =< 0.3 V DD Positive logic: high = 1 = true low = 0 = false Negative
CHAPTER 4: Logic Circuits
CHAPTER 4: Logic Circuits II. Sequential Circuits Combinational circuits o The outputs depend only on the current input values o It uses only logic gates, decoders, multiplexers, ALUs Sequential circuits
The NOR latch is similar to the NAND latch
5-2 NOR Gate Latch The NOR latch is similar to the NAND latch except that the Q and Q outputs are reversed. The set and clear inputs are active high, that is, the output will change when the input is pulsed
EKT 121/4 ELEKTRONIK DIGIT 1
EKT 121/4 ELEKTRONIK DIGIT 1 Kolej Universiti Kejuruteraan Utara Malaysia Bistable Storage Devices and Related Devices Introduction Latches and flip-flops are the basic single-bit memory elements used
Clocks. Sequential Logic. A clock is a free-running signal with a cycle time.
Clocks A clock is a free-running signal with a cycle time. A clock may be either high or low, and alternates between the two states. The length of time the clock is high before changing states is its high
Digital Systems Laboratory 3 Counters & Registers Time 4 hours
Digital Systems Laboratory 3 Counters & Registers Time 4 hours Aim: To investigate the counters and registers constructed from flip-flops. Introduction: In the previous module, you have learnt D, S-R,
Flip-Flops and Sequential Circuit Design
Flip-Flops and Sequential Circuit Design ECE 52 Summer 29 Reading ssignment Brown and Vranesic 7 Flip-Flops, Registers, Counters and a Simple Processor 7.5 T Flip-Flop 7.5. Configurable Flip-Flops 7.6
Fundamentals of Computer Systems
Fundamentals of Computer Systems Sequential Logic Stephen A. Edwards Columbia University Fall 2012 State-Holding Elements Bistable Elements Equivalent circuits; right is more traditional. Two stable states:
Fundamentals of Computer Systems
Fundamentals of Computer Systems Sequential Logic Stephen A. Edwards Columbia University Summer 2016 State-Holding Elements Bistable Elements S Latch Latch Positive-Edge-Triggered Flip-Flop Flip-Flop with
UNIT-3: SEQUENTIAL LOGIC CIRCUITS
UNIT-3: SEQUENTIAL LOGIC CIRCUITS STRUCTURE 3. Objectives 3. Introduction 3.2 Sequential Logic Circuits 3.2. NAND Latch 3.2.2 RS Flip-Flop 3.2.3 D Flip-Flop 3.2.4 JK Flip-Flop 3.2.5 Edge Triggered RS Flip-Flop
ELCT201: DIGITAL LOGIC DESIGN
ELCT201: DIGITAL LOGIC DESIGN Dr. Eng. Haitham Omran, haitham.omran@guc.edu.eg Dr. Eng. Wassim Alexan, wassim.joseph@guc.edu.eg Lecture 6 Following the slides of Dr. Ahmed H. Madian ذو الحجة 1438 ه Winter
DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) LATCHES and FLIP-FLOPS
COURSE / CODE DIGITAL SYSTEM FUNDAMENTALS (ECE421) DIGITAL ELECTRONICS FUNDAMENTAL (ECE422) LATCHES and FLIP-FLOPS In the same way that logic gates are the building blocks of combinatorial circuits, latches
1. Convert the decimal number to binary, octal, and hexadecimal.
1. Convert the decimal number 435.64 to binary, octal, and hexadecimal. 2. Part A. Convert the circuit below into NAND gates. Insert or remove inverters as necessary. Part B. What is the propagation delay
Figure 30.1a Timing diagram of the divide by 60 minutes/seconds counter
Digital Clock The timing diagram figure 30.1a shows the time interval t 6 to t 11 and t 19 to t 21. At time interval t 9 the units counter counts to 1001 (9) which is the terminal count of the 74x160 decade
UNIT 11 LATCHES AND FLIP-FLOPS
UNIT 11 LATCHE AN FLIP-FLOP pring 2011 Latches and Flip-Flops 2 Contents et-eset latch Gated latch Edge-triggered flip-flop - flip-flop J-K flip-flop T flip-flop Flip-flops with additional inputs eading
The outputs are formed by a combinational logic function of the inputs to the circuit or the values stored in the flip-flops (or both).
1 The outputs are formed by a combinational logic function of the inputs to the circuit or the values stored in the flip-flops (or both). The value that is stored in a flip-flop when the clock pulse occurs
A clock is a free-running signal with a cycle time. A clock may be either high or low, and alternates between the two states.
Clocks A clock is a free-running signal with a cycle time. A clock may be either high or low, and alternates between the two states. 1 The length of time the clock is high before changing states is its
Rangkaian Sekuensial. Flip-flop
Rangkaian Sekuensial Rangkaian Sekuensial Flip-flop Combinational versus Sequential Functions Logic functions are categorized as being either combinational (sometimes referred to as combinatorial) or sequential.
ECE 341. Lecture # 2
ECE 341 Lecture # 2 Instructor: Zeshan Chishti zeshan@pdx.edu October 1, 2014 Portland State University Announcements Course website reminder: http://www.ece.pdx.edu/~zeshan/ece341.htm Homework 1: Will
D Latch (Transparent Latch)
D Latch (Transparent Latch) -One way to eliminate the undesirable condition of the indeterminate state in the SR latch is to ensure that inputs S and R are never equal to 1 at the same time. This is done
COE 202: Digital Logic Design Sequential Circuits Part 1. Dr. Ahmad Almulhem ahmadsm AT kfupm Phone: Office:
COE 202: Digital Logic Design Sequential Circuits Part 1 Dr. Ahmad Almulhem Email: ahmadsm AT kfupm Phone: 860-7554 Office: 22-324 Objectives Sequential Circuits Memory Elements Latches Flip-Flops Combinational
Digital Circuit And Logic Design I. Lecture 8
Digital Circuit And Logic Design I Lecture 8 Outline Sequential Logic Design Principles (1) 1. Introduction 2. Latch and Flip-flops 3. Clocked Synchronous State-Machine Analysis Panupong Sornkhom, 2005/2
Digital Circuit And Logic Design I
Digital Circuit And Logic Design I Lecture 8 Outline Sequential Logic Design Principles (1) 1. Introduction 2. Latch and Flip-flops 3. Clocked Synchronous State-Machine Panupong Sornkhom, 2005/2 2 1 Sequential
Sequential Circuits. Sequential Logic. Circuits with Feedback. Simplest Circuits with Feedback. Memory with Cross-coupled Gates.
equential Logic equential Circuits equential Circuits imple circuits with feedback Latches Edge-triggered flip-flops Timing Methodologies Cascading flip-flops for proper operation Clock skew Basic egisters
! Two inverters form a static memory cell " Will hold value as long as it has power applied
equential Logic! equential Circuits " imple circuits with feedback " Latches " Edge-triggered flip-flops! Timing Methodologies " Cascading flip-flops for proper operation " Clock skew! Basic egisters "
Chapter 6. sequential logic design. This is the beginning of the second part of this course, sequential logic.
Chapter 6. sequential logic design This is the beginning of the second part of this course, sequential logic. equential logic equential circuits simple circuits with feedback latches edge-triggered flip-flops
Sequential Logic. Sequential Circuits. ! Timing Methodologies " Cascading flip-flops for proper operation " Clock skew
equential Logic! equential Circuits " imple circuits with feedback " Latches " Edge-triggered flip-flops! Timing Methodologies " Cascading flip-flops for proper operation " Clock skew! Basic egisters "
12/31/2010. Overview. 12-Latches and Flip Flops Text: Unit 11. Sequential Circuits. Sequential Circuits. Feedback. Feedback
2/3/2 Overview 2-atches and Flip Flops Text: Unit equential Circuits et/eset atch Flip-Flops ECEG/IC 2 igital Operations and Computations Winter 2 r. ouie 2 equential Circuits equential circuits: Output
Slide 1. Flip-Flops. Cross-NOR SR flip-flop S R Q Q. hold reset set not used. Cross-NAND SR flip-flop S R Q Q. not used reset set hold 1 Q.
Slide Flip-Flops Cross-NOR SR flip-flop Reset Set Cross-NAND SR flip-flop Reset Set S R reset set not used S R not used reset set 6.7 Digital ogic Slide 2 Clocked evel-triggered NAND SR Flip-Flop S R SR
Chapter 6 Digital Circuit 6-5 Department of Mechanical Engineering
MEMS1082 Chapter 6 Digital Circuit 6-5 General digital system D Flip-Flops, The D flip-flop is a modification of the clocked SR flip-flop. The D input goes directly into the S input and the complement
Final Exam review: chapter 4 and 5. Supplement 3 and 4
Final Exam review: chapter 4 and 5. Supplement 3 and 4 1. A new type of synchronous flip-flop has the following characteristic table. Find the corresponding excitation table with don t cares used as much
More on Flip-Flops Digital Design and Computer Architecture: ARM Edition 2015 Chapter 3 <98> 98
More on Flip-Flops Digital Design and Computer Architecture: ARM Edition 2015 Chapter 3 98 Review: Bit Storage SR latch S (set) Q R (reset) Level-sensitive SR latch S S1 C R R1 Q D C S R D latch Q
Latches, Flip-Flops, and Registers. Dr. Ouiem Bchir
Latches, Flip-Flops, and Registers (Chapter #7) Dr. Ouiem Bchir The slides included herein were taken from the materials accompanying Fundamentals of Logic Design, 6 th Edition, by Roth and Kinney. Sequential
Advanced Devices. Registers Counters Multiplexers Decoders Adders. CSC258 Lecture Slides Steve Engels, 2006 Slide 1 of 20
Advanced Devices Using a combination of gates and flip-flops, we can construct more sophisticated logical devices. These devices, while more complex, are still considered fundamental to basic logic design.
Logic Gates, Timers, Flip-Flops & Counters. Subhasish Chandra Assistant Professor Department of Physics Institute of Forensic Science, Nagpur
Logic Gates, Timers, Flip-Flops & Counters Subhasish Chandra Assistant Professor Department of Physics Institute of Forensic Science, Nagpur Logic Gates Transistor NOT Gate Let I C be the collector current.
EKT 121/4 ELEKTRONIK DIGIT 1
EKT 2/4 ELEKTRONIK DIGIT Kolej Universiti Kejuruteraan Utara Malaysia Sequential Logic Circuits - COUNTERS - LATCHES (review) S-R R Latch S-R R Latch Active-LOW input INPUTS OUTPUTS S R Q Q COMMENTS Q
ALGORITHMS IN HW EECS150 ALGORITHMS IN HW. COMBINATIONAL vs. SEQUENTIAL. Sequential Circuits ALGORITHMS IN HW
LGOITHM HW EEC150 ection 2 Introduction to equential Logic Fall 2001 pproach #2: Combinational divide & conquer a[0] a[1] a[1022] a[1023] MX MX MX 512 + 256 + K+ 1 = 1023 blocks Each MX block has: 64 s;
Chapter 4. Logic Design
Chapter 4 Logic Design 4.1 Introduction. In previous Chapter we studied gates and combinational circuits, which made by gates (AND, OR, NOT etc.). That can be represented by circuit diagram, truth table
Computer Organization & Architecture Lecture #5
Computer Organization & Architecture Lecture #5 Shift Register A shift register is a register in which binary data can be stored and then shifted left or right when a shift signal is applied. Bits shifted
COMP2611: Computer Organization. Introduction to Digital Logic
1 COMP2611: Computer Organization Sequential Logic Time 2 Till now, we have essentially ignored the issue of time. We assume digital circuits: Perform their computations instantaneously Stateless: once
CSE115: Digital Design Lecture 23: Latches & Flip-Flops
Faculty of Engineering CSE115: Digital Design Lecture 23: Latches & Flip-Flops Sections 7.1-7.2 Suggested Reading A Generic Digital Processor Building Blocks for Digital Architectures INPUT - OUTPUT Interconnect:
Chapter 8 Sequential Circuits
Philadelphia University Faculty of Information Technology Department of Computer Science Computer Logic Design By 1 Chapter 8 Sequential Circuits 1 Classification of Combinational Logic 3 Sequential circuits
CHAPTER 6 COUNTERS & REGISTERS
CHAPTER 6 COUNTERS & REGISTERS 6.1 Asynchronous Counter 6.2 Synchronous Counter 6.3 State Machine 6.4 Basic Shift Register 6.5 Serial In/Serial Out Shift Register 6.6 Serial In/Parallel Out Shift Register
Review of Flip-Flop. Divya Aggarwal. Student, Department of Physics and Astro-Physics, University of Delhi, New Delhi. their state.
pp. 4-9 Krishi Sanskriti Publications http://www.krishisanskriti.org/jbaer.html Review of Flip-Flop Divya Aggarwal Student, Department of Physics and Astro-Physics, University of Delhi, New Delhi Abstract:
Digital Fundamentals: A Systems Approach
Digital Fundamentals: A Systems Approach Counters Chapter 8 A System: Digital Clock Digital Clock: Counter Logic Diagram Digital Clock: Hours Counter & Decoders Finite State Machines Moore machine: One
Digital Networks and Systems Laboratory 2 Basic Digital Building Blocks Time 4 hours
Digital Networks and Systems Laboratory 2 Basic Digital Building Blocks Time 4 hours Aim To investigate the basic digital circuit building blocks constructed from combinatorial logic or dedicated Integrated
Switching Circuits & Logic Design
Switching Circuits & Logic Design Jie-Hong oland Jiang 江介宏 Department of Electrical Engineering National Taiwan University Fall 22 Latches and Flip-Flops http://www3.niaid.nih.gov/topics/malaria/lifecycle.htm
ELCT201: DIGITAL LOGIC DESIGN
ELCT201: DIGITAL LOGIC DESIGN Dr. Eng. Haitham Omran, haitham.omran@guc.edu.eg Dr. Eng. Wassim Alexan, wassim.joseph@guc.edu.eg Lecture 7 Following the slides of Dr. Ahmed H. Madian محرم 1439 ه Winter
CPS311 Lecture: Sequential Circuits
CPS311 Lecture: Sequential Circuits Last revised August 4, 2015 Objectives: 1. To introduce asynchronous and synchronous flip-flops (latches and pulsetriggered, plus asynchronous preset/clear) 2. To introduce
Name: Date: Suggested Reading Chapter 7, Digital Systems, Principals and Applications; Tocci
Richland College Engineering Technology Rev. 0 B. Donham Rev. 1 (7/2003) J. Horne Rev. 2 (1/2008) J. Bradbury Digital Fundamentals CETT 1425 Lab 7 Asynchronous Ripple Counters Name: Date: Objectives: To
Synchronous Sequential Logic
Synchronous Sequential Logic -A Sequential Circuit consists of a combinational circuit to which storage elements are connected to form a feedback path. The storage elements are devices capable of storing
Digital Design, Kyung Hee Univ. Chapter 5. Synchronous Sequential Logic
Chapter 5. Synchronous Sequential Logic 1 5.1 Introduction Electronic products: ability to send, receive, store, retrieve, and process information in binary format Dependence on past values of inputs Sequential
Introduction to Microprocessor & Digital Logic
ME262 Introduction to Microprocessor & Digital Logic (Sequential Logic) Summer 2 Sequential Logic Definition The output(s) of a sequential circuit depends d on the current and past states of the inputs,
Introduction to Sequential Circuits
Introduction to Sequential Circuits COE 202 Digital Logic Design Dr. Muhamed Mudawar King Fahd University of Petroleum and Minerals Presentation Outline Introduction to Sequential Circuits Synchronous
Digital Fundamentals: A Systems Approach
Digital Fundamentals: A Systems Approach Latches, Flip-Flops, and Timers Chapter 6 Traffic Signal Control Traffic Signal Control: State Diagram Traffic Signal Control: Block Diagram Traffic Signal Control:
Bachelor Level/ First Year/ Second Semester/ Science Full Marks: 60 Computer Science and Information Technology (CSc. 151) Pass Marks: 24
2065 Computer Science and Information Technology (CSc. 151) Pass Marks: 24 Time: 3 hours. Candidates are required to give their answers in their own words as for as practicable. Attempt any TWO questions:
Switching Circuits & Logic Design
witching Circuits & Logic esign Jie-Hong oland Jiang 江介宏 epartment of Electrical Engineering National Taiwan University Fall 24 Latches and Flip-Flops http://www3.niaid.nih.gov/topics/malaria/lifecycle.htm
Department of Electrical and Computer Engineering Mid-Term Examination Winter 2012
1 McGill University Faculty of Engineering ECSE-221B Introduction to Computer Engineering Department of Electrical and Computer Engineering Mid-Term Examination Winter 2012 Examiner: Rola Harmouche Date:
Logic. Andrew Mark Allen March 4, 2012
Logic Andrew Mark Allen - 05370299 March 4, 2012 Abstract NAND gates and inverters were used to construct several different logic gates whose operations were investigate under various inputs. Then the
Computer Science 324 Computer Architecture Mount Holyoke College Fall Topic Notes: Sequential Circuits
Computer Science 324 Computer Architecture Mount Holyoke College Fall 2007 opic Notes: Sequential Circuits Let s think about how life can be bad for a circuit. Edge Detection Consider this one: What is
Sequential Logic Circuits
Sequential Logic Circuits By Dr. M. Hebaishy Digital Logic Design Ch- Rem.!) Types of Logic Circuits Combinational Logic Memoryless Outputs determined by current values of inputs Sequential Logic Has memory
Sequential Circuit W CLK. CMSC 2833 Lecture 42. Steps:
. ynchronous equential Circuit Design CMC 8 Lecture ynchronous equential Circuit Design teps:. Read the problem specification and reduce to a block diagram.. Find the block that is a sequential circuit
Introduction. Serial In - Serial Out Shift Registers (SISO)
Introduction Shift registers are a type of sequential logic circuit, mainly for storage of digital data. They are a group of flip-flops connected in a chain so that the output from one flip-flop becomes
EET2411 DIGITAL ELECTRONICS
5-8 Clocked D Flip-FlopFlop One data input. The output changes to the value of the input at either the positive going or negative going clock trigger. May be implemented with a J-K FF by tying the J input
Plog rev 1.0 MANUAL Overview
Overview The Intellijel Plog is a voltage controllable digital logic device designed for musical applications. It is primarily intended to create controllable patterns from gate/ pulse sources like clocks
ELE2120 Digital Circuits and Systems. Tutorial Note 8
ELE2120 Digital Circuits and Systems Tutorial Note 8 Outline 1. Register 2. Counters 3. Synchronous Counter 4. Asynchronous Counter 5. Sequential Circuit Design Overview 1. Register Applications: temporally
Chapter 6. sequential logic design. This is the beginning of the second part of this course, sequential logic.
Chapter 6. sequential logic design This is the beginning of the second part of this course, sequential logic. 1 equential logic equential circuits simple circuits with feedback latches edge-triggered flip-flops
Fundamentals of Computer Systems
Fundamentals of omputer Systems Sequential Logic Martha A. Kim olumbia University Spring 2016 1/1 2/1 Bistable Elements Equivalent circuits; right is more traditional. Two stable states: 0 1 1 0 3/1 S
Digital Logic Design I
Digital Logic Design I Synchronous Sequential Logic Mustafa Kemal Uyguroğlu Sequential Circuits Asynchronous Inputs Combinational Circuit Memory Elements Outputs Synchronous Inputs Combinational Circuit