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Flip-Flops - General Questions (9)

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Flip-Flops - General Questions

65. 

One example of the use of an S-R flip-flop is as a(n):

A. racer
B. astable oscillator
C. binary storage register
D. transition pulse generator

Answer: Option C

Explanation:

No answer description available for this question.

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66. 

On a master-slave flip-flop, when is the master enabled?

A. when the gate is LOW
B. when the gate is HIGH
C. both of the above
D. neither of the above

Answer: Option B

Explanation:

No answer description available for this question.

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67. 

What is another name for a one-shot?

A. Monostable
B. Multivibrator
C. Bistable
D. Astable

Answer: Option A

Explanation:

No answer description available for this question

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68. 

The phenomenon of interpreting unwanted signals on J and K while Cp (clock pulse) is HIGH is called ________.

A. parity error checking
B. ones catching
C. digital discrimination
D. digital filtering

Answer: Option B

Explanation:

No answer description available for this question

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69. 

What is the difference between the enable input of the 7475 and the clock input of the 7474?

A. The 7475 is edge-triggered.
B. The 7474 is edge-triggered.

Answer: Option B

Explanation:

No answer description available for this question.

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70. 

The timing network that sets the output frequency of a 555 astable circuit contains ________.

A. three external resistors are used
B. two external resistors and an external capacitor are used
C. an external resistor and two external capacitors are used
D. no external resistor or capacitor is required

Answer: Option B

Explanation:

No answer description available for this question

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71. 

Which is not an Altera primitive port identifier?

A. clk
B. ena
C. clr
D. prn

Answer: Option C

Explanation:

No answer description available for this question

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72. 

How many flip-flops are required to produce a divide-by-128 device?

A. 1
B. 4
C. 6
D. 7

Answer: Option B

Explanation:

No answer description available for this question

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