Electronics and Communication Engineering - Digital Electronics

31. 

In a programmable counter

A. the starting number for counting can be programmed
B. the modulus can be programmed
C. both the starting number and modulus can be programmed
D. either the starting number or modulus can be programmed

Answer: Option B

Explanation:

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32. 

NAND gates can be used to produce edge triggering.

A. True
B. False

Answer: Option A

Explanation:

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33. 

The number of comparator circuits required to build a three-bit simultaneous A/D converter is

A. 7
B. 8
C. 15
D. 16

Answer: Option A

Explanation:

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34. 

-8 is equal to signed binary number

A. 10001000
B. 00001000
C. 10000000
D. 11000000

Answer: Option A

Explanation:

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35. 

Assume that only x and y logic inputs are available. What is the minimum number of 2-input NAND gates required to implement xy?

A. 2
B. 3
C. 4
D. 5

Answer: Option C

Explanation:

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