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GATE EC 2022:Digital Circuits Quiz 8

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Question 1

Find which gate is redundant?

2020-02-18.png (847×624)

Question 2

A digital board has a unipolar square clock of 250MHz. If the clock on the board at all places should have all the harmonic components which have more than 10 % of DC value, the board has to be designed for at least

Question 3

For the 8055 assembly language program given below, the content of the accumulator after the execution of the program is
3000 MVI A, 45
3002 MOV B, A
3003 STC
3004 CMC
3005 RAR
3006 XRA B

Question 4

The following instruction have been executed by an 8085 processor.
Address (Hex) Instruction
6000 MVI A, 78 H
6002 RLC
6003 JC 70 00 H
The next address will be

Question 5

The greatest negative number which can be stored in a 8 – bit register using 2’s complement arithmetic is

Question 6

The Boolean expression for the output of the logic circuit shown in the figure is
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Jun 30ESE & GATE EC