B.TechSemester 42023-24Digital ElectronicsBEE401
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Digital Electronics (BEE401) - AKTU Question Paper 2023-24

B.Tech · Semester 4 · Free PDF Download

This is the official AKTU Digital Electronics Previous Year Question Paper for B.Tech Semester 4, academic session 2023-24. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech
Semester:Semester 4
Session:2023-24
University:AKTU / UPTU

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Questions Asked in 2023-24

Digital Electronics (BEE401) — extracted question text · 70 marks · 3 Hours

Section AAttempt all questions in brief. 2 x 7 = 14
  • a
    Convert decimal number 37 to its binary equivalent
  • b
    Explain Universal Gates
  • c
    What do you mean by a combinational circuit?
  • d
    What is meant by a half adder?
  • e
    Write advantages and disadvantages of ECL Family
  • f
    What is meant by Fan in and Fan out?
  • g
    What are the advantages of CMOS logic family?
Section BAttempt any three of the following: 7 x 3 = 21
  • a
    Simplify the Logical Expression
  • b
    Draw and explain the design of 32:1 MUX using 8:1 MUX and 4:1 Mux
  • c
    For clocked JK flip -flop write the state table, draw the state diagram and state equation
  • d
    Explain briefly the operation of TTL NAND gate in tri state output configuration
  • e
    Implement a 3-input NOR Gate using CMOS and DTL logic families. Also Explain the working in both cases
Section CAttempt any one part of the following: 7 x 1 = 7
  • a
    Convert the following expressions into their standard POS form (i) AB +AC+BC (ii) A +BC+ ABC
  • b
    A logical expression in the standard SOP form is as Minimize it using K-Map
  • a
    Sketch the flow chart showing algorithm for performing subtraction using Adder
  • b
    Implement the following expression using a multiplexer
  • a
    Explain the working of Master-Slave JK Flip-Flop with the help of logic diagram
  • b
    Explain modes of operation of shift register. And state various applications of shift registers
  • a
    Compare the performance of TTL, CMOS and ECL logic
  • b
    With the help of neat diagrams explain working of : (i) CMOS NAND gate (ii) CMOS NOR gate
  • a
    What do you mean by R-2R ladder DAC? Explain working operation od R-2R Ladder DAC
  • b
    What are different types of ADC? Explain operation of dual slope ADC

Question text is extracted from the official AKTU question paper PDF above. Check the original PDF for equations, diagrams and complete wording. Extracted: 2026-08-23.

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