A 4 bit DAC gives an output of 4.5 V for input of 1001. If input is 0110, the output is

Electronics and Communication Engineering (ECE) : Digital Electronics - Quiz(MCQ)

4.5 V

3.0 V

2.0 V

1.5 V

Correct Answer : Option (B) : 3.0 V

Explanation :

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Two 16 : 1 and one 2 : 1 multiplexers can be connected to form a

8 : 1 multiplexer

16 : 1 multiplexer

32 : 1 multiplexer

64 : 1 multiplexer

Correct Answer : 32 : 1 multiplexer

If interrupt service request have been received from all of the following interrupts, then which one will be serviced last?

RST 5.5

RST 6.5

RST 7.5

None of the above

Correct Answer : RST 5.5

Which liquid crystal is used for LCD display?

Mercury

Aqua regia

Liquid boron

Pneumatic fluid

Correct Answer : Pneumatic fluid