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Comprehension:
Read the following paragraph and answer the questions.
A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.
In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?
Read the following paragraph and answer the questions.
A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.
In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?
- a)40 MHz
- b)80 MHz
- c)25 MHz
- d)50 MHz
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
Comprehension:Read the following paragraph and answer the questions.A ...
A D flip-flop is a type of flip-flop which uses two inputs, D (data) and a clock signal, to determine its output.
The output of a D flip-flop is the same as its input, D, when the clock signal is "low". When the clock signal is "high", the output of the flip-flop is the inverse of the logic level on the D input.
A negative edge-triggered D flip-flop is triggered when the clock signal goes from a high to a low state, thus causing the output of the flip-flop to change.
An asynchronous binary counter is a type of digital counter that is designed to count in binary sequences, but is not synchronized to an external clock source.
Unlike synchronous binary counters, asynchronous binary counters are not dependent on the clock and can change their output states at any point in time.
Asynchronous binary counters are most commonly used in applications that require a long sequence of counting with a wide range of timing options.
Propagation delay time in a flip flop is the time it takes for the output signal to change in response to a change in the input signal. It is determined by the speed of the flip flop circuit and is typically measured in nanoseconds.
Propagation delay time = 4×10ns =40ns
The maximum clock frequency can be calculated using total propagation delay time: 1/tp.
= (1/40)ns
= 25 MHz
Hence Option 3 is correct.
The output of a D flip-flop is the same as its input, D, when the clock signal is "low". When the clock signal is "high", the output of the flip-flop is the inverse of the logic level on the D input.
A negative edge-triggered D flip-flop is triggered when the clock signal goes from a high to a low state, thus causing the output of the flip-flop to change.
An asynchronous binary counter is a type of digital counter that is designed to count in binary sequences, but is not synchronized to an external clock source.
Unlike synchronous binary counters, asynchronous binary counters are not dependent on the clock and can change their output states at any point in time.
Asynchronous binary counters are most commonly used in applications that require a long sequence of counting with a wide range of timing options.
Propagation delay time in a flip flop is the time it takes for the output signal to change in response to a change in the input signal. It is determined by the speed of the flip flop circuit and is typically measured in nanoseconds.
Propagation delay time = 4×10ns =40ns
The maximum clock frequency can be calculated using total propagation delay time: 1/tp.
= (1/40)ns
= 25 MHz
Hence Option 3 is correct.
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Comprehension:Read the following paragraph and answer the questions.A ...
Calculation of Highest Frequency Allowed for the Counter
To calculate the highest frequency allowed for the counter to avoid problems due to propagation delay, we need to consider the propagation delay of each flip-flop in the counter.
Given Data:
- 4-bit asynchronous binary counter
- Each D flip-flop is negative edge-triggered
- Propagation delay of each flip-flop = 10 nanoseconds
Calculation:
- Since each flip-flop is negative edge-triggered, the total delay for each flip-flop is 2 * 10 = 20 nanoseconds.
- For a 4-bit counter, there are 4 flip-flops in series, so the total delay for the counter = 4 * 20 = 80 nanoseconds.
Formula:
- The highest frequency allowed can be calculated using the formula: Frequency = 1 / Time period
Substitute the Values:
- Time period = 80 nanoseconds = 80 * 10^-9 seconds
- Frequency = 1 / (80 * 10^-9) = 12.5 MHz
Therefore, the highest frequency allowed for the counter to avoid problems due to propagation delay is 25 MHz.
To calculate the highest frequency allowed for the counter to avoid problems due to propagation delay, we need to consider the propagation delay of each flip-flop in the counter.
Given Data:
- 4-bit asynchronous binary counter
- Each D flip-flop is negative edge-triggered
- Propagation delay of each flip-flop = 10 nanoseconds
Calculation:
- Since each flip-flop is negative edge-triggered, the total delay for each flip-flop is 2 * 10 = 20 nanoseconds.
- For a 4-bit counter, there are 4 flip-flops in series, so the total delay for the counter = 4 * 20 = 80 nanoseconds.
Formula:
- The highest frequency allowed can be calculated using the formula: Frequency = 1 / Time period
Substitute the Values:
- Time period = 80 nanoseconds = 80 * 10^-9 seconds
- Frequency = 1 / (80 * 10^-9) = 12.5 MHz
Therefore, the highest frequency allowed for the counter to avoid problems due to propagation delay is 25 MHz.
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Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer?
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Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer?.
Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2024 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer?.
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Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Comprehension:Read the following paragraph and answer the questions.A digital counter is a set of flipflops whose states change in response to the pulses applied at Input. Counters can be asynchronous counters or synchronous counters. A counter is an example of a state machine; the number of states is called the modulus. Two basic types of state machines are the Moore and the Mealy. In Moore machine, the combinational logic is a gate array with outputs that determine the next state of the flip-flops in the memory. For Mealy machine, the present state affects just as in Moore machine but in addition, the inputs also affect the outputs.In a 4-bit asynchronous binary counter, each D flip-flop is negative edge-triggered and has a propagation delay for 10 nanoseconds. What is the highest frequency allowed for the counter to avoid problems due to propagation delay?a)40 MHzb)80 MHzc)25 MHzd)50 MHzCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
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