Exercise: Counters

Questions for: Counters

A sequential circuit design is used to ________.
A:
count up
B:
count down
C:
decode an end count
D:
count in a random order
Answer: D
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Modulus refers to ________.
A:
a method used to fabricate decade counter units
B:
the modulus of elasticity, or the ability of a circuit to be stretched from one mode to another
C:
an input on a counter that is used to set the counter state, such as UP/DOWN
D:
the maximum number of states in a counter sequence
Answer: D
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A 4-bit binary up counter has an input clock frequency of 20 kHz. The frequency of the most significant bit is ________.
A:
1.25 kHz
B:
2.50 kHz
C:
160 kHz
D:
320 kHz
Answer: A
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An asynchronous binary up counter, made from a series of leading edge-triggered flip-flops, can be changed to a down counter by ________.
A:
taking the output on the other side of the flip-flops ( instead of Q)
B:
clocking of each succeeding flip-flop from the other side ( instead of Q)
C:
changing the flip-flops to trailing edge triggering
D:
all of the above
Answer: D
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________ is the output frequency of the counter shown below.

A:
4 MHz
B:
20 kHz
C:
210.5 kHz
D:
800 Hz
Answer: B
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