Electronics - Sequential Logic Circuits
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Exercise"When ambition ends, happiness begins."
- (Proverb)
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| 6. |
Which type of device may be used to interface a parallel data format with external equipment's serial format? |
| A. |
key matrix | | B. |
UART | | C. |
memory chip | | D. |
serial-in, parallel-out |
Answer: Option C
Explanation:
No answer description available for this question. Let us discuss.
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| 7. |
When the output of a tri-state shift register is disabled, the output level is placed in a: |
| A. |
float state | | B. |
LOW state | | C. |
high impedance state | | D. |
float state and a high impedance state |
Answer: Option D
Explanation:
No answer description available for this question. Let us discuss.
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| 8. |
A comparison between ring and johnson counters indicates that: |
| A. |
a ring counter has fewer flip-flops but requires more decoding circuitry | | B. |
a ring counter has an inverted feedback path | | C. |
a johnson counter has more flip-flops but less decoding circuitry | | D. |
a johnson counter has an inverted feedback path |
Answer: Option A
Explanation:
No answer description available for this question. Let us discuss.
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| 9. |
A sequence of equally spaced timing pulses may be easily generated by which type of counter circuit? |
| A. |
shift register sequencer | | B. |
clock | | C. |
johnson | | D. |
binary |
Answer: Option B
Explanation:
No answer description available for this question. Let us discuss.
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| 10. |
What is meant by parallel-loading the register? |
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Shifting the data in all flip-flops simultaneously | | B. |
Loading data in two of the flip-flops | | C. |
Loading data in all four flip-flops at the same time | | D. |
Momentarily disabling the synchronous SET and RESET inputs |
Answer: Option B
Explanation:
No answer description available for this question. Let us discuss.
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