Exercise: Counters

Questions for: Counters

How many different states does a 2-bit asynchronous counter have?
A:
1
B:
2
C:
4
D:
8
Answer: C
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After 10 clock cycles, and assuming that the DATA input had returned to 0 following the storage sequence, what values would be stored in Q4, Q3, Q2, Q1, Q0 of the register in Figure 7-5?
A:
0,1,0,1,1
B:
1,1,0,1,0
C:
1,0,1,0,1
D:
0,0,0,0,0
Answer: D
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Which of the following is an invalid state in an 8421 BCD counter?
A:
0011
B:
1001
C:
1000
D:
1100
Answer: D
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MOD-6 and MOD-12 counters and multiples are most commonly used as:
A:
frequency counters
B:
multiplexed displays
C:
digital clocks
D:
power consumption meters
Answer: C
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Which of the following is a type of shift register counter?
A:
Decade
B:
Binary
C:
Ring
D:
BCD
Answer: C
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