Electronics and Communication Engineering (ECE) Exam > Electronics and Communication Engineering (ECE) Questions > A counter circuit is usually constructed of _...
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A counter circuit is usually constructed of ____________
- a)A number of latches connected in cascade form
- b)A number of NAND gates connected in cascade form
- c)A number of flip-flops connected in cascade
- d)A number of NOR gates connected in cascade form
Correct answer is option 'C'. Can you explain this answer?
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A counter circuit is usually constructed of ____________a)A number of ...
A counter circuit is usually constructed of a number of flip-flops connected in cascade. Preferably, JK Flip-flops are used to construct counters and registers.
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A counter circuit is usually constructed of ____________a)A number of ...
Understanding Counter Circuits
Counters are essential components in digital electronics, used for counting purposes, such as counting events or generating specific time delays. The construction of a counter circuit is critical for its functionality.
Why Flip-Flops?
- Basic Building Block: Flip-flops serve as the fundamental building blocks for counters. They are bistable devices, meaning they have two stable states, allowing them to store one bit of information.
- State Change: Each flip-flop can be triggered to change states based on clock pulses. This property makes them ideal for counting operations, where the state must change in response to a clock signal.
Cascading Flip-Flops
- Sequential Counting: When multiple flip-flops are connected in cascade (also known as a ripple counter), the output of one flip-flop serves as the clock input for the next. This arrangement allows for counting in binary.
- Count Range: The number of flip-flops determines the maximum count range of the counter. For example, 3 flip-flops can count from 0 to 7 (2^3 - 1).
Comparison with Other Options
- Latches: Latches are level-sensitive devices, which are less suitable for counting applications that require precise timing.
- NAND and NOR Gates: While NAND and NOR gates can be used to create counters, they typically require more complex configurations than flip-flops and are not as straightforward for binary counting.
In conclusion, the correct construction method for a counter circuit involves using a number of flip-flops connected in cascade, making option 'C' the accurate choice.
Counters are essential components in digital electronics, used for counting purposes, such as counting events or generating specific time delays. The construction of a counter circuit is critical for its functionality.
Why Flip-Flops?
- Basic Building Block: Flip-flops serve as the fundamental building blocks for counters. They are bistable devices, meaning they have two stable states, allowing them to store one bit of information.
- State Change: Each flip-flop can be triggered to change states based on clock pulses. This property makes them ideal for counting operations, where the state must change in response to a clock signal.
Cascading Flip-Flops
- Sequential Counting: When multiple flip-flops are connected in cascade (also known as a ripple counter), the output of one flip-flop serves as the clock input for the next. This arrangement allows for counting in binary.
- Count Range: The number of flip-flops determines the maximum count range of the counter. For example, 3 flip-flops can count from 0 to 7 (2^3 - 1).
Comparison with Other Options
- Latches: Latches are level-sensitive devices, which are less suitable for counting applications that require precise timing.
- NAND and NOR Gates: While NAND and NOR gates can be used to create counters, they typically require more complex configurations than flip-flops and are not as straightforward for binary counting.
In conclusion, the correct construction method for a counter circuit involves using a number of flip-flops connected in cascade, making option 'C' the accurate choice.
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A counter circuit is usually constructed of ____________a)A number of latches connected in cascade formb)A number of NAND gates connected in cascade formc)A number of flip-flops connected in cascaded)A number of NOR gates connected in cascade formCorrect answer is option 'C'. Can you explain this answer?
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