
Asynchronous Counters
Quiz
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Other
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University
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Practice Problem
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Hard
Hemanth KAJA
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many flip-flops are required to construct a mod 128 counter? What is the largest decimal number that can be stored in a mod – 64 counter?
7 flip-flops, 127
7 flip-flops, 63
8 flip-flops, 128
8 flip-flops, 64
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How many flip-flops will be complemented in a 10-bit binary ripple up counter to reach the next count after the state 0111111111
5
10
1
9
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What will be the propagation delay in each flip-flop, if 12-bit ripple counter having a modulus of less than or equal to 2N is clocked at maximum usable frequency of 12 MHz?
6.05 ms
6.95 ms
6.95 ns
6.05 ns
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A certain JK flip-flop has propagation delay of 40ns. The largest modulus of ripple counter that can be constructed from such flip-flop and still operate up to 8 MHz is ____
3
4
5
8
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
010
011
110
111
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
For the ripple counter shown, if the initial state before the first clock is Q2Q1Q0 = 111, then the state of the counter after 3 clock cycles is ______
011
101
100
010
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Identify the counter shown in the figure
Asynchronous down counter
Asynchronous up counter
Synchronous down counter
Synchronous up counter
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