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Digital Electronics

Digital Electronics
To get an excess-3 code from BCD code

 0011 is subtracted
 0110 is subtracted
 0110 is added
 0011 is added

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Digital Electronics
(11011) 2 in BCD 8421 code is

 11011001
 00100111
 01101100
 00011011

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Digital Electronics
X + X.Y = ?

 Y
 0
 1
 X

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Digital Electronics
A combinational circuit can be designed using only

 OR gates
 NOR gates
 OR and X-NOR gates
 AND gates

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (I)&(IV)
 Only (II)
 Both (I) & (II)
 Both (II)&(III)

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Digital Electronics
Which type of CPLD packaging can provide maximum number of pins on the package due to small size of the pins?

QFP
PLCC
BGA
PGA

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