1 / 24

Sequential Circuits: Design and Analysis

This chapter provides an overview of sequential circuits, including storage elements like latches and flip-flops. It covers sequential circuit analysis using state tables and diagrams, design considerations, and implementation details. Specific topics include the assignment of state codes, HDL representation, outputs, inputs, combinatorial logic, and next state. An example illustration is used to explain how inputs, outputs, and states are defined over time. The characteristics of state tables and state diagrams are discussed, alongside flip-flop input functions and analyses with other flip-flops. The chapter also reviews JK flip-flop circuits and Moore/Mealy models in sequential logic design.

ivyhall
Download Presentation

Sequential Circuits: Design and Analysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SYEN 3330 Digital Systems Chapter 6 – Part 3 SYEN 3330 Digital Systems

  2. Overview of Chapter 6 • Types of Sequential Circuits • Storage Elements • Latches • Flip-Flops • Sequential Circuit Analysis • State Tables • State Diagrams • Sequential Circuit Design • Specification • Assignment of State Codes • Implementation • HDL Representation SYEN 3330 Digital Systems

  3. Outputs Inputs Combina-tional Logic Storage Elements Next State State Sequential Circuit Analysis CLK SYEN 3330 Digital Systems

  4. Example (from Fig. 6-17) SYEN 3330 Digital Systems

  5. Example (Fig. 6-17) (Continued) SYEN 3330 Digital Systems

  6. Example (Fig. 6-17) (Continued) • Where in time are inputs, outputs and states defined? 1 0 1 0 0 0 1 0 SYEN 3330 Digital Systems

  7. Example (Fig. 6-17) (Continued) • Where in time are inputs, outputs and states defined? 1 0 1 0 0 0 1 0 SYEN 3330 Digital Systems

  8. State Table Characteristics SYEN 3330 Digital Systems

  9. Example: State Table (Fig. 6-17) The STATE TABLE can be filled in using the next state and output equations.  SYEN 3330 Digital Systems

  10. Alternate State Table Format An alternate format just shows the next state and output as a function of the current state, but broken out by input. SYEN 3330 Digital Systems

  11. State Table Characteristics SYEN 3330 Digital Systems

  12. State Diagrams SYEN 3330 Digital Systems

  13. State Diagram (Example) SYEN 3330 Digital Systems

  14. Flip-Flop Input Functions SYEN 3330 Digital Systems

  15. Analysis with Other Flip-Flops SYEN 3330 Digital Systems

  16. Characteristic Tables (Review 6-7) SYEN 3330 Digital Systems

  17. JK Flip-Flop Circuit Analysis SYEN 3330 Digital Systems

  18. JK Flip-Flop Analysis (Cont.) SYEN 3330 Digital Systems

  19. JK Flip-Flop, Next State SYEN 3330 Digital Systems

  20. JK Flip-Flop, Next State SYEN 3330 Digital Systems

  21. Review: Sequential Circuits SYEN 3330 Digital Systems

  22. Moore and Mealy Models Sequential Logic, or Sequential Machines are also called Finite State Automata. Two formal models exist: SYEN 3330 Digital Systems

  23. Moore and Mealy Example SYEN 3330 Digital Systems

  24. Moore and Mealy Example Tables SYEN 3330 Digital Systems

More Related