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Embedded Systems Interview Questions
Questions Answers Views Company eMail

For a NMOS transistor acting as a pass transistor, say the gate is connected to VDD, give the output for a square pulse input going from 0 to VDD

Infosys,

1459

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

Infosys,

1305

Let A & B be two inputs of the NAND gate. Say signal A arrives at the NAND gate later than signal B. To optimize delay, of the two series NMOS inputs A & B, which one would you place near the output?

Infosys,

1455

Why is digital communication better than analogue communication?

Aricent,

840

Using four cascaded counters with a total of 8 bits, how many states must be deleted to achieve a modulus of 20,000?

Ittiam Systems,

1022

How many bits microprocessor was first developed?

Honeywell,

1049

In 8085 name the 16 bit registers?

4Cplus,

1357

What is the RST for the TRAP?

1375

Device density on a microprocessor/chip?

Sony,

1122

How can you increase ports of a microprocessor?

Honeywell, Zomato,

1321

Which interrupt is not level-sensitive in 8085?

1100

What is the purpose of Program Counter in a Micro - Processor?

992

Can you tell how many pins are there in 8085 Microprocessor?

Honeywell, Huawei, Zomato,

997

What do you mean by radio environment in building?

Ericsson,

928

Tell me the role of a car driver as one of a feedback mechanism.

Ericsson,

969


Un-Answered Questions { Embedded Systems }

Explain the difference between a microcontroller and an embedded system?

902


Explain memory mapped i/o and i/o mapped i/o schemes?

1340


What is the difference between cmos and bipolar technologies?

1136


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

1410


Explain the three regions of operation of a mosfet.

1098


Process technology? What package was used and how did you model the package/system? What parasitic effects were considered?

2337


What is the function of ale and how does it works?

1058


Define word?

1110


Working of a 2-stage OPAMP?

3187


What transistor level design tools are you proficient with? What types of designs were they used on?

5070


Explain the difference between mutexes vs semaphores?

871


You've just been assigned to a project in a new technology how would you get started?

833


Explain what are the uses of the keyword static?

815


What is the importance of linear and circular convolution in signals and systems?

1079


Can single bit of a port be accessed in 8051?

1068