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Counters - General Questions (9)

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Counters - General Questions

65. 

A MOD-12 and a MOD-10 counter are cascaded. Determine the output frequency if the input clock frequency is 60 MHz.

A. 500 kHz
B. 1,500 kHz
C. 6 MHz
D. 5 MHz

Answer: Option A

Explanation:

No answer description available for this question.

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66. 

When two counters are cascaded, the overall MOD number is equal to the ________ of their individual MOD numbers.

A. product
B. sum
C. log
D. reciprocal

Answer: Option A

Explanation:

No answer description available for this question

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67. 

What type of register is shown below?

mcq7_1015_1

A. Parallel in/parallel out register
B. Serial in/parallel out register
C. Serial/parallel-in parallel-out register
D. Parallel-access shift register

Answer: Option D

Explanation:

No answer description available for this question

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68. 

What is the difference between a 7490 and a 7492?

A. 7490 is a MOD-12, 7492 is a MOD-10
B. 7490 is a MOD-12, 7492 is a MOD-16
C. 7490 is a MOD-16, 7492 is a MOD-10
D. 7490 is a MOD-10, 7492 is a MOD-12

Answer: Option D

Explanation:

No answer description available for this question.

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69. 

What is the difference between combinational logic and sequential logic?

A. Combinational circuits are not triggered by timing pulses, sequential circuits are triggered by timing pulses.
B. Combinational and sequential circuits are both triggered by timing pulses.
C. Neither circuit is triggered by timing pulses.

Answer: Option A

Explanation:

No answer description available for this question

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70. 

Synchronous counters eliminate the delay problems encountered with asynchronous counters because the:

A. input clock pulses are applied only to the first and last stages
B. input clock pulses are applied only to the last stage
C. input clock pulses are not used to activate any of the counter stages
D. input clock pulses are applied simultaneously to each stage

Answer: Option D

Explanation:

No answer description available for this question. 

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71. 

Synchronous construction reduces the delay time of a counter to the delay of:

A. all flip-flops and gates
B. all flip-flops and gates after a 3 count
C. a single gate
D. a single flip-flop and a gate

Answer: Option D

Explanation:

No answer description available for this question

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72. 

Integrated-circuit counter chips are used in numerous applications including:

A. timing operations, counting operations, sequencing, and frequency multiplication
B. timing operations, counting operations, sequencing, and frequency division
C. timing operations, decoding operations, sequencing, and frequency multiplication
D. data generation, counting operations, sequencing, and frequency multiplication

Answer: Option B

Explanation:

No answer description available for this question

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