Electronics and Communication Engineering - Digital Electronics

26. 

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: Option B

Explanation:

No answer description available for this question. Let us discuss.

27. 

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: Option D

Explanation:

No answer description available for this question. Let us discuss.

28. 

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: Option A

Explanation:

No answer description available for this question. Let us discuss.

29. 

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: Option B

Explanation:

No answer description available for this question. Let us discuss.

30. 

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: Option D

Explanation:

No answer description available for this question. Let us discuss.