Top 50 Digital Electronics Interview Questions (2024)
The field of engineering known as “digital electronics” or “digital technology” deals with electronics that use digital signals. Logic gates are used in the design of digital circuits, and the implementation and simplification of logic gate functions allow for the minimization of digital circuits.
- What is Central Processing Unit?
- What is Flash Memory and How Does it Work?
- Why do we go for FinFET?
- How does FinFET reduce leakage?
- NOR flash technology
- NAND flash technology
- Specification of LPDDR5
- Specification of LPDDR4
- What is the odd cycle error in VLSI
- What are Resistance Capacitance and Inductance?
- Where does the term flash memory come from?
- What is the function of a flash memory’s command register?
- Which flash configuration is byte erasable?
- How can you avoid crosstalk?
- How multiple vias are used to reduce crosstalk?
- How the spacing reduces the crosstalk?
- Crosstalk delay in VLSI
- Crosstalk noise in VLSI
- What is the main advantage of flash memory over EEPROMs?
- Which flash configuration is used in USB thumb drives?
- Advantages of Flash Memory
- Disadvantages of Flash Memory
- Standard Cell Library Characterization.
- Standard Cell Library Characterization Output.
What is meant by a bit?
Bits are binary digits like 0 and 1.
1 Byte=8bits
How many types of number systems are there?
Four types of number systems
- Decimal Number System.
- Binary Number System.
- Octal Number System.
- Hexadecimal Number System.
What are the fundamental properties of Boolean algebra?
The properties of Boolean algebra are:
- Commutative Property.
- Associative Property.
- Distributive Property.
What are the basic Logic gates?
Three basic logic gates–
What are two forms of Boolean expression?
- Sum of products (SOP) form.
- The Product of sum (POS) form.
What is the use of a Multiplexer (MUX)?
- Used as a data selector from many inputs to get one output.
- These are used in the data acquisition system.
- It is used as A/D to D/A Converter.
- These are used in time-multiplexing systems.
What is the use of Demultiplexer?
- It is used as a decoder for the conversion of binary to decimal.
- It is used as a serial-to-parallel converter.
What are Fan-in and Fan-out?
- Fan-in- The Fan-in of the gate means the number of inputs that are connected to the gate without the degradation of the voltage level of the system.
- Fan-out- The Fan-out is the maximum number of the same inputs of the IC(Integrated Circuit) that a gate can drive maintaining its output levels within the specified limits.
What is the Rise and fall time in VLSI?
- The time that is required to change the voltage level from 10% to 90% is called rise time.
- The time that is required to change the voltage level from 90% to 10% is called fall time.
What is used by Buffer?
- Buffer is used to eliminate cross-talk.
- It helps for high Fan-out.
- Buffer helps to introduce small delays.
- It helps to increase the drive strength of long metal
What is used by Flip-Flops?
- Flip-flops are used for Data transfer.
- These are used as the delay element.
- Flip-flops are used as the memory element.