Course Details

ELE 225 Fundamentals of Digital Systems
2021-2022 Spring term information

The course is not open this term

Timing data are obtained using weekly schedule program tables. To make sure whether the course is cancelled or time-shifted for a specific week one should consult the supervisor and/or follow the announcements.

Course definition tables are extracted from the ECTS Course Catalog web site of Hacettepe University ( in real-time and displayed here. Please check the appropriate page on the original site against any technical problems. Course data last updated on 28/01/2022.


Course Name Code Semester Theory
Credit ECTS
Course languageEnglish
Course typeMust 
Mode of DeliveryFace-to-Face 
Learning and teaching strategiesLecture
Question and Answer
Drill and Practice
Problem Solving
Other: This course must be taken together with ELE227 FUNDAMENTALS of DIGITAL SYSTEMS LABORATORY.  
Instructor (s)Faculty members  
Course objectiveThe aim of this course is to teach the basics of digital systems to students and to equip them with the capability of analyzing and designing combinational and sequential systems. Also, to provide them with essential background for advanced computer related courses in the following semesters. The topics covered in the course are reinforced via experiments conducted in ELE 227 laboratory course. 
Learning outcomes
  1. A student who completes the course successfully will L.O.1. Analyze and design combinational logic circuits
  2. L.O.2. Analyze and design synchronous sequential logic circuits
  3. L.O.3. Analyze circuits that use flip-flops, registers and counters, describe the functions of such circuits and design circuits using these devices
  4. L.O.4. Analyze circuits that use RAM, ROM, PLA, and PAL devices, describe the functions of such circuits and design circuits using these devices
Course ContentReview of number systems and Boolean algebra
Simplification of Boolean functions
Analysis and design using logic gates
Description of basic logic building blocks, analysis and design using these blocks
Analysis and design of combinational and sequential logic circuits
Memory structures, programmable logic devices
ReferencesMano M.M., Ciletti M.D., Digital Design, 6/e, Pearson, 2019.
Wakerly J.F., Digital Design: Principles and Practices, 5/e, Pearson, 2018.
Ciletti M.D., Advanced Digital Design with the Verilog HDL, 2/e, Pearson, 2011.

Course outline weekly

Week 1Number systems, binary arithmetic, signed numbers, binary codes
Week 2Basics of Boolean algebra, algebraic simplification, canonical and standard forms
Week 3Karnaugh maps, SOP and POS simplification, two level design
Week 4NAND and NOR designs, analysis and design of multilevel circuits, EXOR gates, parity bit generation
Week 5Combinational circuit blocks: Adders, multipliers, comparators
Week 6Combinational circuit blocks: Decoders, encoders, multiplexers and combinational circuit implementation using these blocks
Week 7Latch circuits, flip-flops, triggering of flip-flops
Week 8Analysis of synchronous sequential circuits, the state table and the state diagram
Week 10Design of synchronous sequential circuits, state assignment and state reduction
Week 11Registers, shift registers, synchronous and asynchronous counters
Week 12Memory structures, types of RAM , memory decoding, error correcting codes
Week 13Programmable logic arrays: ROM, PLA and PAL
Week 14Sequential programmable devices: SPLD, CPLD and FPGA
Week 15Preparation for Final exam
Week 16Final exam

Assesment methods

Course activitiesNumberPercentage
Field activities00
Specific practical training00
Final exam160
Percentage of semester activities contributing grade succes140
Percentage of final exam contributing grade succes160

Workload and ECTS calculation

Activities Number Duration (hour) Total Work Load
Course Duration (x14) 14 3 42
Laboratory 0 0 0
Specific practical training000
Field activities000
Study Hours Out of Class (Preliminary work, reinforcement, ect)14456
Presentation / Seminar Preparation000
Homework assignment7428
Midterms (Study duration)11010
Final Exam (Study duration) 11414
Total Workload3735150

Matrix Of The Course Learning Outcomes Versus Program Outcomes

D.9. Key Learning OutcomesContrubition level*
1. PO1. Possesses the theoretical and practical knowledge required in Electrical and Electronics Engineering discipline.     X
2. PO2. Utilizes his/her theoretical and practical knowledge in the fields of mathematics, science and electrical and electronics engineering towards finding engineering solutions.    X
3. PO3. Determines and defines a problem in electrical and electronics engineering, then models and solves it by applying the appropriate analytical or numerical methods. X    
4. PO4. Designs a system under realistic constraints using modern methods and tools.   X 
5. PO5. Designs and performs an experiment, analyzes and interprets the results. X   
6. PO6. Possesses the necessary qualifications to carry out interdisciplinary work either individually or as a team member. X    
7. PO7. Accesses information, performs literature search, uses databases and other knowledge sources, follows developments in science and technology.X    
8. PO8. Performs project planning and time management, plans his/her career development.X    
9. PO9. Possesses an advanced level of expertise in computer hardware and software, is proficient in using information and communication technologies.    X
10. PO10. Is competent in oral or written communication; has advanced command of English.  X  
11. PO11. Has an awareness of his/her professional, ethical and social responsibilities.X    
12. PO12. Has an awareness of the universal impacts and social consequences of engineering solutions and applications; is well-informed about modern-day problems.X    
13. PO13. Is innovative and inquisitive; has a high level of professional self-esteem.X    

*1 Lowest, 2 Low, 3 Average, 4 High, 5 Highest

General Information | Course & Exam Schedules | Real-time Course & Classroom Status
Undergraduate Curriculum | Open Courses, Sections and Supervisors | Weekly Course Schedule | Examination Schedules | Information for Registration | Prerequisite and Concurrent Courses | Legal Info and Documents for Internship | Information for ELE 401-402 Graduation Project | Virtual Exhibitions of Graduation Projects | Program Educational Objectives & Student Outcomes | ECTS Course Catalog | HU Registrar's Office
Graduate Curriculum | Open Courses and Supervisors | Weekly Course Schedule | Final Examinations Schedule | Schedule of Graduate Thesis Defences and Seminars | Information for Registration | ECTS Course Catalog - Master's Degree | ECTS Course Catalog - PhD Degree | HU Graduate School of Science and Engineering