Q. An 8156 has A₁₅ connected to its CE input. A₁₄ to A₈ are unconnected, and AD₇ to AC₀ are connected.Ignoring shadows, the port addresses

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Q. In 8085 microprocessor, what is the length of IR (instruction register)?

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Q. A sequence detector is required to give a logical output of 1 whenever the sequence 1011 is detected in the incoming pulse stream. Minimum number of flip-flops needed to built the sequence detector is

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Q. In a shift register the data is loaded in one operation but shifted out one bit at a time, The shift register is

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Q. In CCD

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Q. Dual slope ADC uses an op amp comparator.

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Q. The output of the 74 series of TTL gates is taken from a BST in

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Q. In the above case the hexadecimal notation for the last memory location is

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Q. What is the length of SP (Stack pointer) of 8085 μp?

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Q. Shifting digits from left to right and vice versa is needed in

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Q. Current requirement of a piezo buffer is about

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Q. Consider the following instruction of 8085 μp :

1. MOV M, A
2. AODC
3. MVI A, FF
4. CMP M

Which of these cause change in the status of flag(s)?

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Q. A microprocessor with a 16-bit address bus is used in a linear memory selection configuration (i.e., Address bus lines are directly used as chip selects of memory chips) with 4 memory chips. The maximum addressable memory space is

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Q. The logic represented by the abbreviation ECL is

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Q. A (A + B) =

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Q. One of the function of the SiO₂ layer in an IC is to

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Q. Monostable multivibrator is called one-shot or single-shot circuit because it

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Q. 10's complement of 16₁₀ is

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Q. The hexadecimal number 64 AC is equivalent to decimal number

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Q. A binary with a digits, all of which are unity has the value

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