1 / 18

Chapter 1

Chapter 1. Introduction: Digital Systems & Logic Design By Taweesak Reungpeerakul. Digital Systems. Digital and Analog Quantities Parameters of Pulse Waveform Basic Logic Combinational Logic Digital Integrated Circuits An example of Digital System Design Flow.

mika
Download Presentation

Chapter 1

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. Chapter 1 Introduction: Digital Systems & Logic Design By Taweesak Reungpeerakul

  2. Digital Systems • Digital and Analog Quantities • Parameters of Pulse Waveform • Basic Logic • Combinational Logic • Digital Integrated Circuits • An example of Digital System • Design Flow 242-208 CH1

  3. 1.1 Digital & Analog Quantities • Analog Quantity? • Continuous Values • Digital Quantity? • Discrete Set of Values • Which one has more advantages? • Digital Quantity (process & transmit) • Efficiency • Reliability 242-208 CH1

  4. Analog & Digital Example 242-208 CH1

  5. Analog System Digital and Analog System Analog & Mixed System 242-208 CH1

  6. 1.2 Binary Digits, Logic Levels, and Digital Waveforms • Binary Digits: 0  Low, 1  High • Code: Group of Bits • Logic Level: represented by voltages 242-208 CH1

  7. Digital Waveforms • Pulse Positive-going pulse Negative-going pulse • Waveform Characteristic • Question f = 1/T T = 1/f tW : pulse width tr : rise time tf : fall time T : period f : frequency Duty Cycle = ( tw / T ) 100% 242-208 CH1

  8. Clock and Bits Waveforms • Clock is a periodic waveform (signal) in which each interval between pulse equals the time for one bit 242-208 CH1

  9. Timing Diagrams • How 2 or more waveforms change and relate 242-208 CH1

  10. 1.3 Basic Logic Operations 242-208 CH1

  11. 1.4 Basic Logic Functions 242-208 CH1

  12. Mux Demux Basic Logic Functions (cont) 2n n 242-208 CH1

  13. Flip-flops Counters Registers Basic Logic Functions (cont) 242-208 CH1

  14. 1.5 Digital Integrated Circuits • IC Packages: DIP, SMT, SOIC, PLCC, LCCC, FP • IC Complexity Classifications • SSI: gate ≥ 12, basic gates & flip-flops • MSI: 12 ≤ gate ≥ 99, logic functions • LSI: 100 ≤ gate ≥ 9999, including memory • VLSI: 10,000 ≤ gate ≥ 99,999 • ULSI: gate ≥ 100,000 242-208 CH1

  15. Integrated Circuit Technologies • Types of Transistors • Bipolar Junction Transistors • MOSFETs (metal-oxide semiconductor field-effect transistors) • Bipolar used in: transistor-transistor logic (TTL) and emitter-couple logic (ECL) • MOSFETs used in: complementary MOS (CMOS) and n-channel MOS (NMOS) 242-208 CH1

  16. 1.6 Testing and Troubleshooting Instruments • Oscilloscope • Analog • Digital • Logic Analyzer • DC Power Supply • Function Generator • Digital Multimeter 242-208 CH1

  17. 1.7 Digital System Application 242-208 CH1

  18. Design Flow 242-208 CH1

More Related