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Digital Electronics

Digital Electronics
It is desired to have a 64 × 8 ROM. The ROMs available are of 16 × 4 size. The number of ROMs required will be

 2
 8
 6
 4

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 four input NAND gates only
 three 3-input OR gates and one 3-input AND gate
 three 3-input NAND gates and one 3-input NOR gate
None of these

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Digital Electronics
Which of these circuits will give yield carry with more delay 1. Carry look ahead adder 2. Ripple carry adder

 2.
 both are same
 none
 1.

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Digital Electronics
The inverter is ___________

OR gate
None of these
AND gate
NOT gate

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Digital Electronics
A multiplexer is a

 1-to-N device
 1-to-1 device
 N-to-1 device
 N-to-N device

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Digital Electronics
Logic circuits are

 analog circuits
 hybrid circuits
 none of these
 digital circuits

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