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Microprocessor

Microprocessor
Number of Hex digits needed to represent the 20-bit address of a memory location are

 4
 5
 16
 20

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Microprocessor
The 8085 microprocessor enters into bus idle machine cycle whenever

 INTR interrupt is recognized
 RST 7.5 is recognized
None of these
 DAD RP instruction is executed

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Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 8
 16
 12
 18

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Microprocessor
A combinational PLD with a programmable AND array and a fixed OR array is called a

 PLA
 PROM
 PAL
 PLD

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Microprocessor
How many machine cycles are required for execution of IN 30H instruction

 4
 6
 5
 3

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Microprocessor
Identify the programmable interval timer from the following

 8253
 8252
 8275
 8279

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