Sequential logic circuits use a clock signal to control the timing of state changes in memory elements like flip-flops. A master-slave JK flip-flop allows both the J and K inputs to be simultaneously 1, toggling the output. When this occurs, the master section is reset if the clock is 1, and set if the clock is 0, preventing unstable oscillations between circuits.
The document explains about the concepts of sequential circuits in Digital electronics.
This will be helpful for the beginners in VLSI and electronics students.
The Reason Why we use master slave JK flip flop instead of simple level triggered flip flop is Racing condition which can be successfully avoided using two SR latches fed with inverted clocks.
The document explains about the concepts of sequential circuits in Digital electronics.
This will be helpful for the beginners in VLSI and electronics students.
The Reason Why we use master slave JK flip flop instead of simple level triggered flip flop is Racing condition which can be successfully avoided using two SR latches fed with inverted clocks.
JK flip flop in Digital electronics
You can watch my lectures at:
Digital electronics playlist in my youtube channel:
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This Presentation is useful to study Digital Electronics subject about D and T Flip-Flop. This Presentation is also useful to make Presentation on Flip-Flop.
Computers and calculators use
Flip-flop for their memory??
A flip flop is an electronic circuit with two stable states(High/Low) that can be used to store binary data.
Flipflops JK T SR D All FlipFlop SlidesSid Rehmani
Flipflops JK T SR D All FlipFlop Slides. Uploaded by SidRehmani.
Jk flip flop presentation, T flip flop presentation, D flip flop presentation, D flip flop presentation.
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flip flop,introduction,types,. SR Flip Flop
a.SR Flip Flop Active Low = NAND gate Latch
b. SR Flip Flop Active High = NOR gate Latch
2. Clocked SR Flip Flop
3. JK Flip Flop
4. JK Flip Flop With Pre-set And Clear
5. T Flip Flop
6. D Flip Flop
7. Master-Slave Edge-Triggered Flip-Flop
The Used of Flip Flop:
JK flip flop in Digital electronics
You can watch my lectures at:
Digital electronics playlist in my youtube channel:
https://www.youtube.com/channel/UC_fItK7wBO6zdWHVPIYV8dQ?view_as=subscriber
My Website : https://easyninspire.blogspot.com/
This Presentation is useful to study Digital Electronics subject about D and T Flip-Flop. This Presentation is also useful to make Presentation on Flip-Flop.
Computers and calculators use
Flip-flop for their memory??
A flip flop is an electronic circuit with two stable states(High/Low) that can be used to store binary data.
Flipflops JK T SR D All FlipFlop SlidesSid Rehmani
Flipflops JK T SR D All FlipFlop Slides. Uploaded by SidRehmani.
Jk flip flop presentation, T flip flop presentation, D flip flop presentation, D flip flop presentation.
Follow Me For More:
facebook.com/RjSidRehmani
flip flop,introduction,types,. SR Flip Flop
a.SR Flip Flop Active Low = NAND gate Latch
b. SR Flip Flop Active High = NOR gate Latch
2. Clocked SR Flip Flop
3. JK Flip Flop
4. JK Flip Flop With Pre-set And Clear
5. T Flip Flop
6. D Flip Flop
7. Master-Slave Edge-Triggered Flip-Flop
The Used of Flip Flop:
For those students who start there career in technical line like ITI, Diploma, Engineering of any field this ppt is helpful for them to understand the Engineering Drawing and Its Basic concepts of Orthographics Projection with very good images.
SEQUENTIAL LOGIC CIRCUITS (FLIP FLOPS AND LATCHES)Sairam Adithya
this presentation is about the sequential logic circuits, mainly concentrating on flip-flops and latches. a unique feature in this presentation is the incorporation of circuit images generated from Multisim software imparting practical knowledge to the users. this consists of both the active low and high versions of different circuits.
This presentation is about the sequential logic circuits, mainly concentrating on flip-flops and latches. A unique feature in this presentation is the incorporation of circuit images generated from Multisim software imparting practical knowledge to the users.
SEQUENTIAL CIRCUITS [FLIP FLOPS AND LATCHES]SUBHA SHREE
This presentation is about the sequential logic circuits, mainly concentrating on flip-flops and latches. A unique feature in this presentation is the incorporation of circuit images generated from Multisim software imparting practical knowledge to the users. This consists of both the active low and high versions of different circuits.
Flip Flop | Counters & Registers | Computer Fundamental and OrganizationSmit Luvani
Agenda :
Sequential Circuit
R-S/S-R Flip Flop
Active low state
Active High State
Clocked State
J-K Flip Flop
Master Slave Flip Flop
T Flip Flop
D-Flip Flop
Counters :
What is Counter?
Ripple Counter
Synchronous Counter
Binary Ripple Counter
Register
Shift Register
Shift Registers – Serial In Serial Out
Shift Registers – Serial In Parallel Out
Shift Registers – Parallel In Serial Out
Shift Registers – Parallel In Parallel Out
Introduction to Sequential DevicesChapter 66.1 M.docxbagotjesusa
Introduction to Sequential Devices
Chapter 6
6.1 Models for Sequential CircuitsElevator example:
6.1.1 Block Diagram representation
Memory devices:
- Semiconductor Flip-Flops
- Magnetic devices
- Delay lines
- Mechanical relays
- Rotation switches
- Etc…
This circuit can be represented by the following equations:
Vector Notation:
- All the vectors are time dependant
- Vector y has the value y(tk) at time tk.
- Input signals xi and output signal zi may assume a variety of forms
6.1.2 State Tables and DiagramsThe state diagram is a graphical representation of a sequential circuit in which the states are represented by circles and state transition of the circuit are shown by arrows.
State table : all circuit input vectors are listed across the top, while all state vectors are listed down the left side. Entries in the table are the next state and the output.
In practice, the state diagrams and tables are usually labeled using symbols rather than vectors. For example consider a sequential circuit with two present state variables y1, and y2. Then y= [y1 , y2]Therefore the vector y can have any of the four possible values:
In general, if r represents the number of memory devices (number of states) in a circuit with Ns states then
Example: Consider the following sequential circuit with one input x, two state variables y1 and y2, and one output z.
The state diagram is:
Let assume that the circuit is initially in state A. now consider the application of the following input sequence to the circuit:
Hence the input sequence applied to the machine in state A cause the output sequence
Z=0100110111
And leaves the circuit in its final state C.
6.2 Memory Devices-Most memory elements are bistable electronic circuits, that is, they exist indefinitely in one of two possible states, 0 and 1. - Binary data are stored in a memory element by placing the element into the 0 state to store 0 and into the 1 state to store 1. - The output of the memory indicates the present state. - The input of the memory indicates the next state. - Each memory element has one or more excitation inputs, so called because they are used to “excite” or drive the circuit into the desired state.
Two memory element types
The Two memory element types most commonly used in switching circuits are latches and flip-flops.1- LATCHES
A latch is a memory element whose excitation input signals control the state of
the device
A set latch: the excitation input forces the output of the device to 1.
A Reset latch: the excitation inputs force the device output to 0.
A Set-Reset latch: a latch with both set and reset excitation signals.
Timing Diagram of SR LATCH
2- FLIP-FLOP:
A flip-flop differs from a latch in that it has a
control signal called clock. The clock signal
issues a command to the flip-flop, allowing it
to change states in accordance with its
excitation input signals.
- In both latches and flip-flops, the next s.
FYBSC IT Digital Electronics Unit IV Chapter II Sequential Circuits- Flip-FlopsArti Parab Academics
Sequential Circuits: Flip-Flop:
Introduction, Terminologies used, S-R flip-flop, D flip-fop, JK flipflop, Race-around condition, Master – slave JK flip-flop, T flip-flop, conversion from one type of flip-flop to another, Application of flipflops.
Similar to MASTER SLAVE JK FLIP FLOP & T FLIP FLOP (20)
In this slide given description about different Type of Single phase induction Motor.
i.e.Capacitor start motor
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3. Flip-Flops
• The latch circuits presented thus far are not appropriate
for use in synchronous sequential logic circuits.
• The possibility of two cascaded combinational circuits
feeding each other, generating oscillations and unstable
transient behavior can be controlled by using a special
timing control signal called a clock.
• The clock can then be used to restrict the times at which
the states of the memory elements may change thus
preventing the unstable behavior just described.
4. Clock Signal
Sequential logic circuits have memory
Output is a function of input and present state
Sequential circuits are synchronized by a periodic “clock” signal
5. Master-Slave JK Flip-Flop
• The output state of a master-slave SR flip-flop
is undefined upon returning the control input
to 0 when S = R = 1.
– Necessary to avoid this condition.
• Master-slave JK flip-flop allows its two
information input lines to be simultaneously
1.
– Results in toggling the output of the flip flop.
6. Master-Slave JK Flip-Flop
• Assume in 1-state, C = 0, J = K = 1.
– Due to feedback, the output of the J-gate is 0, output of K-gate is 1.
– If clock is changed to C = 1 then master is reset.
• Assume in 0-state, C = 0, J = K = 1.
– Due to feedback, the output of the J-gate is 1, output of K-gate is 0.
– If clock is changed to C = 1 then master is set.
• 1 on J input line, 0 on K input line sets the flip-flop.
– If in 1-state, unchanged b/c S,R set to 0.
– If in 0-state, S set to 1, R set to 0.
• 0 on J input, 1 on K input line resets the flip-flop. Why?
9. T (toggle) Flip-flop
• It’s a complementing flip-flop
• It can be made using JK flip-flop or D flip-
flop.
• If made using JK flip-flop
– Inputs J & K are tied together
– T=0, J=K=0, No Change in Q
– T=1, J=K=1, Q = Q’
• If made using D flip-flop
– Q = D = T XOR Q = TQ’ + T’Q
