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Digital Electronics

Digital Electronics
An 8 × 4 ROM contains a decoder of size

 8 × 4
 8 × 8
 3 × 4
 3 × 8

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Digital Electronics
What is the requirement of fullsubstractor circuit ?

 Three inputs and two outputs
 Two inputs and two outputs
 Two inputs and three outputs
 Three inputs and one output

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Digital Electronics
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

CMOS
TTLAS
TTLLS
ECL

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

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

 the input is HIGH and LOW
 the input is LOW
None of these
 the input is HIGH

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Digital Electronics
The number of cells in a 6 variable K-map is

 12
 64
 6
 36

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MORE MCQ ON Digital Electronics

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