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    Deld 3

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    pawanpawar4369
    This document contains 8 questions related to digital electronics and logic design. The questions cover topics like flip flops, counters, programmable logic arrays, logic families, microprocessors, and arithmetic logic units. Students are instructed to attempt questions 1-3 and 5-7, or questions 2, 4 and 8. The questions require explaining concepts, drawing circuits, comparing different approaches, and briefly explaining functional units and their operations.

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    © All Rights Reserved
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    Deld 3

    Uploaded by

    pawanpawar4369
    26 views2 pages
    This document contains 8 questions related to digital electronics and logic design. The questions cover topics like flip flops, counters, programmable logic arrays, logic families, microprocessors, and arithmetic logic units. Students are instructed to attempt questions 1-3 and 5-7, or questions 2, 4 and 8. The questions require explaining concepts, drawing circuits, comparing different approaches, and briefly explaining functional units and their operations.

    Original Description:

    Unit 3 notes of DELD, SPPU University, Computer Engineering

    Original Title

    DELD-3

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    This document contains 8 questions related to digital electronics and logic design. The questions cover topics like flip flops, counters, programmable logic arrays, logic families, microprocessors, and arithmetic logic units. Students are instructed to attempt questions 1-3 and 5-7, or questions 2, 4 and 8. The questions require explaining concepts, drawing circuits, comparing different approaches, and briefly explaining functional units and their operations.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    26 views2 pages

    Deld 3

    Uploaded by

    pawanpawar4369
    This document contains 8 questions related to digital electronics and logic design. The questions cover topics like flip flops, counters, programmable logic arrays, logic families, microprocessors, and arithmetic logic units. Students are instructed to attempt questions 1-3 and 5-7, or questions 2, 4 and 8. The questions require explaining concepts, drawing circuits, comparing different approaches, and briefly explaining functional units and their operations.

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    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    You are on page 1of 2

    Total No. of Questions : 8] SEAT No.

    :
    P648 [5869] - 275
    [Total No. of Pages : 2

    S.E. (Computer Engineering)


    DIGITAL ELECTRONICS AND LOGIC DESIGN
    (2019 Pattern) (Semester - III) (210245)
    Time : 2½ Hours] [Max. Marks : 70
    Instructions to the candidates:
    1) Attempt Q1 or Q2, Q3 or Q4, Q5 or Q6, Q7 or Q8.
    2) Neat diagram must be drawn whenever necessary.
    3) Assume suitable data if necessary.

    Q1) a) Convert the following flip flop [6]


    i) JK FF to T FF
    ii) SR FF to D FF
    b) Explain the ring counter design for the initial condition 1010. From initial
    state explain and draw all possible states. [6]
    c) Design 2 bit synchronous up counter using MS JK flipflop. [6]
    OR
    Q2) a) Explain the internal diagram of IC 7490. Design MOD 7 counter using
    IC 7490. [6]
    b) Write short notes on Johnson counter. [6]
    c) Compare synchronous and ripple counter. [6]

    Q3) a) Draw the ASM chart for a 2 bit Binary counter having one enable line E
    such that.
    : E = 1 (counting enabled), E = 0 (Counting disabled) [6]
    b) Implement 3 bit binary to gray code converter using PLA. [6]
    c) Draw and explain the general structure of PLA. [5]
    OR
    Q4) a) State and explain basic components of ASM chart. [6]
    b) Draw and explain general structure of PAL. [5]
    c) Implement the following function using PLA:
    f1 = m (0, 3, 4, 7) f2 = m (1, 2, 5, 7) [6]

    [5869] - 275 1 P.T.O.


    Q5) a) What do you mean by Totem Pole output? Explain with the help of
    circuit diagram. [6]
    b) List the differences between CMOS and TTL logic family. [6]
    c) Explain with neat diagram working CMOS invertor. [6]
    OR
    Q6) a) Define the following terms and mention its standard values for TTL family:
    [6]
    i) Voltage parameter
    ii) Fan Out
    iii) Noise Margin
    b) What do you mean by tri-state buffer? [6]
    c) Draw 2-i/p standard TTL NAND gate with Totem Pole. Explain operation
    of transistor (ON/OFF) with suitable input conditions and truth table.[6]

    Q7) a) Which are various functional units of microprocessors? Explain in brief.


    [6]
    b) Explain the Memory organization of the microprocessor. [5]
    c) Explain the 4-bit Multiplier circuit using ALU and shift registers in brief.
    [6]
    OR
    Q8) a) What is Microprocessor? Explain the system bus in brief. [6]
    b) How Basic Arithmetic operations are performed using ALU IC 74181?[5]
    c) Which are various functional units of microprocessors? Explain ALU in
    brief. [6]

    

    [5869] - 275 2

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