A 22-MHz clock signal is put into a MOD-16 counter. What is the frequency of the

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A 22-MHz clock signal is put into a MOD-16 counter. What is the frequency of the Q output of each stage of the counter?
Options
A. Q₁ = 22 MHz, Q₂ = 11 MHz, Q₃ = 5.5 MHz, Q₄ = 2.75 MHz
B. Q₁ = 11 MHz, Q₂ = 5.5 MHz, Q₃ = 2.75 MHz, Q₄ = 1.375 MHz
C. Q₁ = 11 MHz, Q₂ = 11 MHz, Q₃ = 11 MHz, Q₄ = 11 MHz
D. Q₁ = 22 MHz, Q₂ = 22 MHz, Q₃ = 22 MHz, Q₄ = 22 MHz

Correct Answer

Q₁ = 11 MHz, Q₂ = 5.5 MHz, Q₃ = 2.75 MHz, Q₄ = 1.375 MHz

Counters problems

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1. Select the response that best describes the use of the Master Reset on typical 4-bit binary counters.
Options
A. When MR₁ and MR₂ are both HIGH, all Qs will be reset to zero.
B. When MR₁ and MR₂ are both HIGH, all Qs will be reset to one.
C. MR₁ and MR₂ are provided to synchronously reset all four flip-flops.
D. To enable the count mode, MR₁ and MR₂ must be held LOW.

4. What type of register is shown below?
Options
A. Parallel in/parallel out register
B. Serial in/parallel out register
C. Serial/parallel-in parallel-out register
D. Parallel-access shift register

5. To operate correctly, starting a ring counter requires:
Options
A. clearing one flip-flop and presetting all the others.
B. clearing all the flip-flops.
C. presetting one flip-flop and clearing all the others.
D. presetting all the flip-flops.

7. How many AND gates would be required to completely decode ALL the states of a MOD-64 counter, and how many inputs must each AND gate have?
Options
A. 128 gates, 6 inputs to each gate
B. 64 gates, 5 inputs to each gate
C. 64 gates, 6 inputs to each gate
D. 128 gates, 5 inputs to each gate

10. A seven-segment, common-anode LED display is designed for:
Options
A. all cathodes to be wired together
B. one common LED
C. a HIGH to turn off each segment
D. disorientation of segment modules

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