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Embedded Systems Interview Questions
Questions Answers Views Company eMail

Explain various adders and difference between them?

Intel,

1209

For f = AB+CD if B is S-a-1, what are the test vectors needed to detect the fault?

Intel,

1249

Implement a function with both ratioes and domino logic and merits and demerits of each logic?

Intel,

1200

Explain the working of Insights of a pass gate ?

Intel,

1233

Explain the Working of a 2-stage OPAMP?

Intel,

1194

why 8085 processor is called an 8 bit processor?

Rolta,

1043

In what way interrupts are classified in 8085?

4Cplus,

1165

what are the various flags used in 8085?

4Cplus,

1244

what is program counter?

Wipro,

1120

Give a big picture of the entire SRAM Layout showing your placements of SRAM Cells, Row Decoders, Column Decoders, Read Circuit, Write Circuit and Buffers

Infosys,

1105

Draw the Differential Sense Amplifier and explain its working. Any idea how to size this circuit? (Consider Channel Length Modulation)

Infosys,

1369

In the design of a large inverter, why do we prefer to connect small transistors in parallel (thus increasing effective width) rather than lay out one transistor with large width?

Infosys,

1193

Draw Vds-Ids curve for a MOSFET. Now, show how this curve changes considering Channel Length Modulation.

Infosys,

1205

Draw the stick diagram of a NOR gate. Optimize it

Infosys,

1285

Given a layout, draw its transistor level circuit. (I was given a 3 input AND gate and a 2 input Multiplexer. You can expect any simple 2 or 3 input gates)

Infosys,

1201


Un-Answered Questions { Embedded Systems }

What is the structure of psp?

1071


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

1015


The interrupt response time is determined by?

1037


What is the last programming book you read?

860


Do you know what is priority inheritance?

890


Tell me what are buses used for communication in embedded system?

863


what is the difference between the TTL chips and CMOS chips?

1125


How much total external data memory that can be interfaced to the 8051?

1208


What is meant by the statement that 8085 is a 8 bit microprocessor?

1192


What are the three main types of connection used by bluetooth?

1056


what is the use of defpararm?

1142


What does SD RAM refers to

1077


What are the 4 types of inheritance relationship?

880


How many bit microprocessor is the 8086 microprocessor?

1126


What does a microprocessor mean? What all does a microprocessor comprise of?

1061