1. Difference between Combinational & Sequential Circuits.
2. What are the classifications of sequential circuits?
The sequential circuits are classified on the basis of timing of their signals into
two types. They are:
1) Synchronous sequential circuit.
2) Asynchronous sequential circuit.
3. Define Flip flop.
The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1
or 0 until directed by an input signal to change its state.
4. What are the different types of flip-flop?
There are various types of flip flops. Some of them are mentioned below they are:
1. SR flip-flop
2. D flip-flop
3. JK flip-flop
4. T flip-flop
5. What is the operation of D flip-flop?
In D flip-flop during the occurrence of clock pulse if D=1, the output Q is set and
if D=0, the output is reset.
Set – 1, Reset – 0.
6. What is the operation of JK flip-flop?
1. When K input is low and J input is high the Q output of flip-flop is set.
2. When K input is high and J input is low the Q output of flip-flop is reset.
3. When both the inputs K and J are low the output does not change
4. When both the inputs K and J are high it is possible to set or reset the flip-flop
(ie) the output toggle on the next positive clock edge
7. What is the operation of T flip-flop?
T flip-flop is also known as Toggle flip-flop.
1. When T=0 there is no change in the output.
2. When T=1 the output switch to the complement state (ie) the output toggles.
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2. What are the classifications of sequential circuits?
The sequential circuits are classified on the basis of timing of their signals into
two types. They are:
1) Synchronous sequential circuit.
2) Asynchronous sequential circuit.
3. Define Flip flop.
The basic unit for storage is flip flop. A flip-flop maintains its output state either at 1
or 0 until directed by an input signal to change its state.
4. What are the different types of flip-flop?
There are various types of flip flops. Some of them are mentioned below they are:
1. SR flip-flop
2. D flip-flop
3. JK flip-flop
4. T flip-flop
5. What is the operation of D flip-flop?
In D flip-flop during the occurrence of clock pulse if D=1, the output Q is set and
if D=0, the output is reset.
Set – 1, Reset – 0.
6. What is the operation of JK flip-flop?
1. When K input is low and J input is high the Q output of flip-flop is set.
2. When K input is high and J input is low the Q output of flip-flop is reset.
3. When both the inputs K and J are low the output does not change
4. When both the inputs K and J are high it is possible to set or reset the flip-flop
(ie) the output toggle on the next positive clock edge
7. What is the operation of T flip-flop?
T flip-flop is also known as Toggle flip-flop.
1. When T=0 there is no change in the output.
2. When T=1 the output switch to the complement state (ie) the output toggles.
To download the full document Click Here