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Digital Electronics

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

TTLLS
CMOS
TTLAS
ECL

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Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 15
 7
 4
 16

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Digital Electronics
An OR gate has 6 inputs. The number of input words in its truth table are

64
6
32
128

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Digital Electronics
A group of four bits is known as

 Bit
 Byte
 Nibble
 Word

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Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NOR gate
 NAND gate
 X-NOR gate
 X-OR gate

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1100 1011 1111 1001
 1100 1001 1111 1000
 1000 0101 1001 0010
 1100 0111 1111 0011

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