Digital Electronics - Counters

Exercise :: Counters - General Questions

13. 

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:

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14. 

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:

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15. 

Which segments of a seven-segment display would be required to be active to display the decimal digit 2?

A. a, b, d, e, and g
B. a, b, c, d, and g
C. a, c, d, f, and g
D. a, b, c, d, e, and f

Answer: Option A

Explanation:

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16. 

How many AND gates would be required to completely decode ALL the states of a MOD-64 counter, and how many inputs must each AND gate have?

A. 128 gates, 6 inputs to each gate
B. 64 gates, 5 inputs to each gate
C. 64 gates, 6 inputs to each gate
D. 128 gates, 5 inputs to each gate

Answer: Option C

Explanation:

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17. 

What decimal value is required to produce an output at "X" ?

A. 1
B. 1 or 4
C. 2
D. 5

Answer: Option D

Explanation:

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18. 

A BCD counter is a ________.

A. binary counter
B. full-modulus counter
C. decade counter
D. divide-by-10 counter

Answer: Option C

Explanation:

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