Exercise: Digital Electronics

Questions for: Digital Electronics

Which of the following flip-flop do not have race problem?
A:
T flip-flop
B:
D flip-flop
C:
JK flip-flop
D:
Master-slave flip-flop
Answer: D
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By placing an inverter between both inputs of an S-R flip-flop, the resulting flip-flop becomes
A:
J-K flip-flop
B:
D-flip-flop
C:
T-flip-flop
D:
Master salve JK flip-flop
Answer: B
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For a D/A converter, inputs and outputs are given. The output corresponding to digital input 01000
A:
2.0 V
B:
2.5 V
C:
3.0 V
D:
4.0 V
Answer: A
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Access time of a storage is the time required
A:
to write one word into the memory
B:
to read one word from the memory
C:
to write one word into and to read one word from the memory
D:
either to write one word or to read one word
Answer: D
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Consider the following registers:
  1. A accumulator and B register
  2. B and C registers
  3. D and E registers
  4. H and L registers
Which of these 8-bit registers of 8085 μP can be paired together to make a 16-bit register?
A:
1, 3 and 4
B:
2, 3 and 4
C:
1 and 2
D:
1, 2 and 3
Answer: B
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