Assertion (A) : Asynchronous sequential circuit is also called event driven circuit. Reason (R) : Event driven circuit does not have clock to trigger change of state. The states are changed by the change in input signal of the previous stage. Select your answer using the codes given below.
Both (A) and (R) are true and (R) is the correct explanation of (A).
The question involves understanding the concepts of asynchronous sequential circuits and their behavior.
- Understanding Assertion (A):
- An asynchronous sequential circuit is referred to as an event-driven circuit. This is because these circuits do not rely on a clock signal to change states, unlike synchronous circuits.
- Understanding Reason (R):
- An event-driven circuit changes its state in response to changes in input signals. These inputs trigger the transition from one state to another, independently of any clock signal. Hence, clock signals are not required to control the timing of state changes.
- Evaluating the Combination of (A) and (R):
- Both Assertion (A) and Reason (R) provide accurate descriptions of asynchronous sequential circuits.
- The reason (R) correctly explains that the change in states is triggered by inputs, which justifies why such circuits are called event-driven. Hence, (R) is not only true but also correctly explains (A).
Thus, the correct answer is: Both (A) and (R) are true and (R) is the correct explanation of (A).
Similar Questions
Read the following statements :
i. Gate is a combinational logic.
ii. JK Flip-flop in toggle mode is not combinational logic.
iii. MSJK FF suffers from race-around.
iv. Counters are sequential circuits.Which is correct ?
Which flip-flop can be used as latch ?
The truth table of D flip-flop is given below:
C D Qn+1 O X Qn (Last State) $\uparrow$ 0 0 $\uparrow$ 1 1 Choose exact characteristic equation based on above Truth Table
Assertion (A) : Delay flip flop is used to store a single bit either 0 or 1.
Reason (R) : It has only one input, when clock is high and D input is also high, the output resets.
For the circuit shown below consider the two statements :
Assertion (A) : The circuit is sequential.
Reason (R) : There is a loop in circuit.
Select your answer using the codes given below.
Flip Flop can be used to make :
(a) Latches
(b) Bounce-elimination switches
(c) ADDER
(d) Encoder
Which of the statements given above are correct ?
Under which input condition, the J-K Flip-Flop toggles ?
Read the following statements :
(a) In a J-K Flip Flop, if J = K, the resulting Flip Flop is referred to as a T-type Flip Flop
(b) In a J-K Flip Flop, if J ≠ K, the resulting Flip Flop is referred to as a D-type Flip Flop
(c) An S-R Flip Flop cannot be converted into a T-type Flip Flop since S = R = 1 is not allowed.Which is correct ?
Which of the following statements are true regarding the operation of JK flip-flop ?
1. When K input is low and J input is high, the Q output of the flip flop is reset.
2. When K input is high and J input is low, the output Q of the flip flop is set.
3. When both the inputs K and J are low, the output Q 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 next positive clock edge.Which one of the following is true ?
Assertion (A) : D-flip-flops are used as buffer register.
Reason (R) : Flip-flops are free from "race-around" condition.
Select your answer using the codes given below :
Important Questions from Sequential Circuits
The basic sequential logic building block in which the output follows the data input as long as the ENABLE input is active, is
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