# EEEN2003J Digital Electronics

## Academic Year 2024/2025

Restriction: Beijing-based students only.

Digital electronic circuitry forms the heart of virtually all complex electronic and computer systems. This is an introductory course in the field of digital electronics. It starts with the basic logic operations and the logic elements that can perform those operations, and works towards the design of more complex digital systems.

Topics include:
- Binary systems: logic gates, Boolean algebra, number formats;
- Combinational circuits: simplification of combinational expressions, arithmetic circuits, control circuits, multiplexers and decoders;
- Sequential circuits: flip flops, registers, counters, synchronous state machines;
- Implementation technologies and performance metrics: CMOS logic, timing considerations

The laboratory component of the course provides an opportunity to simulate, build and test some digital systems. Simple circuits will be built using integrated circuits on plug-in circuit boards.

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Curricular information is subject to change

Learning Outcomes:

On successful completion of this module, students should be able to:
- Use and explain the different ways of representing unsigned and signed rational numbers e.g. decimal, binary (unsigned, sign and magnitude, one's complement and two's complement), and hexadecimal; the advantages and disadvantages of each of these number systems, and how to convert numbers between them.
- Write Boolean algebraic functions that describe a given system or circuit, and simplify this system using Truth Tables and Karnaugh maps.
- Perform binary arithmetic, and explain the digital circuits that perform these arithmetic operations.
- Analyse the operation of synchronous and asynchronous digital circuits and subsystems, using state equations, state diagrams, and transition tables.
- Design a synchronous digital circuit to meet a given specification.
- Have a basic understanding of the factors that limit the performance of digital systems e.g. timing issues, etc...

Student Effort Hours:
Student Effort Type Hours
Lectures

28

Practical

6

Autonomous Student Learning

80

Total

114

Approaches to Teaching and Learning:
Lectures where material is explained coupled with Labs where the students see first had the principles.

Requirements, Exclusions and Recommendations
Learning Requirements:

Basic knowledge of electrical circuits will be needed, but can be acquired in parallel with this module.

Module Requisites and Incompatibles
This module is delivered overseas and is not available to students based at the UCD Belfield or UCD Blackrock campuses

Assessment Strategy
Description Timing Component Scale Must Pass Component % of Final Grade In Module Component Repeat Offered
Exam (In-person): End of trimester exam End of trimester
Duration:
2 hr(s)
Alternative linear conversion grade scale 40% No

70

No
Group Work Assignment: Labs, throughout the trimester. Week 5, Week 6, Week 7, Week 8, Week 9, Week 10, Week 11, Week 12, Week 14, Week 15 Alternative linear conversion grade scale 40% No

30

No

Carry forward of passed components
Yes

Resit In Terminal Exam
Summer Yes - 2 Hour