A 3 bit up-down counter can count from

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

000 to 111

111 to 000

000 to 111 and also from 111 to 000

None of the above

Correct Answer : Option (C) : 000 to 111 and also from 111 to 000

Explanation : Since it is an up-down counter it can count upwards or downwards.

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

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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