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# Digital Electronics - Counters

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### Exercise

"Life is like riding a bicycle. To keep your balance you must keep moving."
- Albert Einstein
1.

How many flip-flops are required to make a MOD-32 binary counter?

 A. 3 B. 45 C. 5 D. 6

2.

Using four cascaded counters with a total of 16 bits, how many states must be deleted to achieve a modulus of 50,000?

 A. 50,000 B. 65,536 C. 25,536 D. 15,536

3.

A MOD-16 ripple counter is holding the count 10012. What will the count be after 31 clock pulses?

 A. 10002 B. 10102 C. 10112 D. 11012

4.

The terminal count of a modulus-11 binary counter is ________.

 A. 1010 B. 1000 C. 1001 D. 1100

5.

List which pins need to be connected together on a 7493 to make a MOD-12 counter.

 A. 12 to 1, 11 to 3, 9 to 2 B. 12 to 1, 11 to 3, 12 to 2 C. 12 to 1, 11 to 3, 8 to 2 D. 12 to 1, 11 to 3, 1 to 2

6.

How can a digital one-shot be implemented using HDL?

 A. By using a resistor and a capacitor B. By applying the concept of a counter C. By using a library function D. By applying a level trigger