Digital Electronics Unit 4 Notes AKTU (BOE310)

AKTU · BTECH · Semester 3, 4 · Digital Electronics · Unit 4 · Notes

AKTU Digital Electronics (BOE310) Unit 4 notes for B.Tech Semester 3/4 – Synchronous and Asynchronous Sequential Circuits. Topics: Synchronous Circuit…

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Unit 4: Synchronous and Asynchronous Sequential Circuits – AKTU syllabus topics

  • Synchronous Circuit Analysis: State Machine Design, State Reduction and Assignment, Mealy and Moore Models
  • Synchronous Circuit Design Procedure
  • Asynchronous Circuit Analysis: Circuit with Latches
  • Asynchronous Circuit Design: Flow Table State Reduction, Race Free State Assignment
  • Hazards in Digital Circuits

Most asked AKTU PYQ questions from Unit 4

  1. Q7a. Explain State Reduction and assignment with suitable example. (10 marks, 2022-23)
  2. Q1g. Define critical race and non-critical race. (2 marks, 2021-22)
  3. Q1g. Define Asynchronous circuits. (2 marks, 2021-22)
  4. Q6b. Design a synchronous 3-bit FSM (which can be used for counting) using D flip-flops with no external inputs and count sequence as follows: 0-1-3-7-4-2-0. (10 marks, 2022-23)
  5. Q6a. Illustrate the working and applications of Asynchronous sequential circuits. (10 marks, 2022-23)
  6. Q7b. Design a sequential circuit with two flip flops A & B and one input X. When X=0 state of the circuit remains the same, when X=1 circuit passes through the state transition from 00 to 01 to 11 to 10 back to 00 and repeat. (10 marks, 2022-23)
  7. Q2d. Define the state reduction steps for a machine. (10 marks, 2021-22)
  8. Q6a. Design a sequential circuit with two flip flops A & B and one input x. When x = 0, the state of the circuit remains the same and when x = 1 the circuit passes through the state transitions from 00 to 01 to 11 to 10 back to 00 and repeat. (10 marks, 2021-22)
  9. Q1e. Differentiate between Synchronous and Asynchronous sequential circuits. (2 marks, 2022-23)
  10. Q1f. Illustrate the term sequential logic. (2 marks, 2022-23)

AKTU paper codes: BOE310, BOE410, BOE310H, BOE410H, KOE039, BEE401, KEE401, KOE049

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