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Embedded Systems Interview Questions
Questions Answers Views Company eMail

Draw the timing diagram for a SRAM Read. What happens if we delay the enabling of Clock signal?

Infosys,

667

Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes with increasing Vgs.

Infosys,

660

Approximately, what were the sizes of your transistors in the SRAM cell? How did you arrive at those sizes?

Infosys,

681

Draw a 6-T SRAM Cell and explain the Read and Write operations

Infosys,

789

Draw a transistor level two input NAND gate. Explain its sizing (a) considering Vth (b) for equal rise and fall times

Infosys,

1052

You have three adjacent parallel metal lines. Two out of phase signals pass through the outer two metal lines. Draw the waveforms in the centre metal line due to interference. Now, draw the signals if the signals in outer metal lines are in phase with each other

Infosys,

942

What is Latch Up? Explain Latch Up with cross section of a CMOS Inverter. How do you avoid Latch Up?

Infosys,

757

Draw a CMOS Inverter. Explain its transfer characteristics

Infosys,

663

How does the size of PMOS Pull Up transistors (for bit & bit- lines) affect SRAM's performance?

Infosys,

730

For an AND-OR implementation of a two input Mux, how do you test for Stuck-At-0 and Stuck-At-1 faults at the internal nodes? (You can expect a circuit with some redundant logic)

Infosys,

702

For CMOS logic, give the various techniques you know to minimize power consumption

Infosys,

846

What is Charge Sharing? Explain the Charge Sharing problem while sampling data from a Bus

Infosys,

774

Draw the SRAM Write Circuitry

Infosys,

646

Give the logic expression for an AOI gate. Draw its transistor level equivalent. Draw its stick diagram

Infosys,

834

Why do we gradually increase the size of inverters in buffer design? Why not give the output of a circuit to one large inverter?

Infosys,

807

Un-Answered Questions { Embedded Systems }

What is the repository pattern?

454

Can we use any function inside isr?

425

Are you familiar with the term snooping?

2913

In vlsi chip 1000s of transistors are dropped, specifically categorized. Which method is used to achieve this & how it is done practically?

571

What jobs alu of 8085 can perform?

804




What's your experience with qa engineering?

424

What is the difference between 8085 microprocessor and 8086 microprocessor?

632

How to detect a sequence of "1101" arriving serially from a signal line?

627

Classify interrupts on the basis of signals. State their differences.

644

What does a microprocessor mean?

640

Which register handles the arithmetic operations in the 8085?

582

What are the conditions under which the eu enter into the wait mode?

678

What are the functions of base registers?

603

What are the qualifiers in c?

433

Can we put breakpoint inside isr?

407

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