Exercise: Counters

Questions for: Counters

A modulus-10 counter must have ________.
A:
10 flip-flops
B:
flip-flops
C:
2 flip-flops
D:
synchronous clocking
Answer: B
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A principle regarding most display decoders is that when the correct input is present, the related output will switch:
A:
HIGH
B:
to high impedance
C:
to an open
D:
LOW
Answer: D
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List which pins need to be connected together on a 7492 to make a MOD-12 counter.
A:
1 to 12, 11 to 6, 9 to 7
B:
1 to 12, 12 to 6, 11 to 7
C:
1 to 12, 9 to 6, 8 to 7
D:
1 to 12
Answer: D
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How many natural states will there be in a 4-bit ripple counter?
A:
4
B:
8
C:
16
D:
32
Answer: C
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A MOD-16 synchronous counter has inputs labeled . These inputs would most probably be used to:
A:
reset the counter to 0000 at the end of each count cycle
B:
preset the counter to a value determined by the inputs any time the is active-HIGH
C:
preset the counter to a value determined by the inputs any time the is active-LOW
D:
reset the counter to 0000 any time is active-HIGH and is active-LOW
Answer: D
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