طراحی مدارهای منطقی

1. طراحی مدارهای منطقی دانشگاه آزاد اسلامی واحد پرند نیمسال دوم 92-93

2. طراحی مدارهای منطقی دانشگاه آزاد اسلامی واحد پرند مقدمهای بر سیستمهای دیجیتال

3. Course Objective • Design and Implementation of Digital Systems • مثال: گوشي تلفن: • ورودي ها: کليدها • خروجي ها: صفحة نمايش و سيگنال هاي ارسالي به مرکز تلفن • رفتار: شماره گيري و ايجاد ارتباط • مثال: خودرو: • ورودي ها: پدال ها، سوييچ، فرمان، ... • خروجي ها: فرمان پيچش و چرخش چرخ ها، فرمان ترمز، ... • رفتار: حرکت در مسیر مورد نظر.... • مثال از سیستم های دیجیتال: • کنترلر چراغ راهنمایی • بازی x-o • کنترلر آسانسور • مدارهای محاسباتی

4. Digital Systems • Digital systems are used extensively in computation, control systems and etc. • Digital systems are capable of greater accuracy and reliability than analog systems • In a digital system, the physical quantities or signals can assume only discretevalues, while in analog systems the physical quantities or signals may vary continuouslyover a specified range • For example, the output voltage of a digital systemmight be constrained to take on only two values such as 0 volts and 5 volts,while the output voltage from an analog system might be allowed to assume anyvalue in the range -5 volts to 5 volts

5. T ime Digital Systems • Digital systems are used extensively in computation, control systems and etc. • Digital systems are capable of greater accuracy and reliability than analog systems • In a digital system, the physical quantities or signals can assume only discretevalues, while in analog systems the physical quantities or signals may vary continuouslyover a specified range +5 1 0 1 0

6. Design of Digital Systems • The design of digital systems may be divided into three parts: • System Design • Breaking the overall system into subsystems and specifying the characteristics of each subsystem • Example: Digital Computer: specifying the number and type of memory units, arithmetic units, and input-output devices as well as the interconnection and control of these subsystems

7. Design of Digital Systems • The design of digital systems may be divided into three parts: • Logic Design • Logic design involves determining how to interconnect basic logic building blocks to perform a specific function • Example: Determining the interconnection of logic gates and flip-flops required to perform binary addition

8. Design of Digital Systems • The design of digital systems may be divided into three parts: • Circuit Design • Specifying the interconnection of specific components such as resistors, diodes, and transistors to form a gate, flip-flop, or other logic building block

9. Switching Circuits • Many of a digital system’s subsystems take the form of a switching circuit • A switching circuit has one or more inputs and one or more outputs which take on discrete values

10. Switching Circuits • Two types of switching circuits • Combinational (ترکیبی): • the output values depend only on the present value of the inputs and not on past values • Sequential (ترتیبی):  Have Memory • the outputs depend on both the present and past input values

11. Course Description • Number Systems • Boolean Algebra • Optimization Methods (Karnaugh map and Quine-McCluskey) • Modules: PAL, PLA, Decoder, ROM, MUX • Arithmetic Circuits • Flip-Flops • Sequential Analysis • Sequential Design • Registers – Counters • Hazard, Wired Logic, Asynchronous Design …

12. Details • Midterm Exam: 5 point • Final Exam: 12 point • HWs: 2 point • Activity and Quizzes: 1 point • Email address: arabzadeh.mona@yahoo.com • Course Group: https://groups.yahoo.com/groups/LogicCourseParand92/

13. References • Main Reference: • Roth, Fundamentals of Logic Design, 7th Edition, 2010. • Others: • Katz, Contemporary Logic Design • Mano, Digital Design, 3rd Edition, 2002, Prentice-Hall • Nelson & Nagle, Digital Logic Circuits, Analysis and Design