Course code: 247109  Subject title: DIGITAL SYSTEMS I  
Credits: 6  Type of subject: Mandatory  Year: 1  Period: 2º S  
Department: Ingeniería Eléctrica, Electrónica y de Comunicación  
Lecturers:  
DEL VILLAR FERNANDEZ, IGNACIO (Resp) [Mentoring ]  URRUTIA AZCONA, AITOR [Mentoring ] 
G2. Teamwork
G3. Selflearning
G7. Ability to conceive, design, implement and operate systems and services in the field of Information Technologies and Communications
CB1. Students should demonstrate having and understanding knowledge in a study field starting from the background of secondary education, and should reach a level that, although supported by advanced textbooks, also includes some aspects that imply stateoftheart knowledge in their study field
CB2. Students should be able to know how to apply their knowledge to their work or vocation in a professional manner and possess skills that tend to be demonstrated through the elaboration and defense of arguments and solving problems within their field of study
CB5. Students should develop the learning skills needed to undertake further study with a high degree of autonomy.
Know the fundamentals of combinational and sequential circuits
Analyze synchronous and asynchronous digital electronic circuits
Know and apply hardware description languages
Understand the necessary analogdigital and digitalanalog interfaces in a specific application
Methodology  Activity

Presential Hours  Nonpresential hours 
A1 Theoretical classes/participatory classes

35


A2 Practical sessions

15

15

A3 Cooperative learning activities

5

2

A4 Study and autonomous student work


68 
A5 Tutoring and evaluation activities

5

5




Total

60

90

Learning outcome  Assessment activity  Weight(%)  It allows test resit 
Know the fundamentals of combinational and sequential circuits Analyze synchronous and asynchronous digital electronic circuits Know and apply hardware description languages Understand the necessary analogdigital and digitalanalog interfaces in a specific application  two written partial exams and an extraordinary exam for those who fail  75  Yes 
Know the fundamentals of combinational and sequential circuits Analyze synchronous and asynchronous digital electronic circuits Know and apply hardware description languages  Practical sessions and reports on practical sessions  25  No 
1. The part of theoretical concepts and exercises is worth 75% of the global score. It is composed of two exams, one in the middle of the semester:
 first partial exam: chapters 1 to 5 (30% of global score)
 second partial exam: chapters 6 to 10 (30% of global score)
To overcome the course, it must be obtained at least a 40% score in the second partial exam.
In order to promote a continuous evaluation, the students will be able to submit throughout the semester the exercises proposed during theoretical classes. The score obtained will be added to the corresponding partial exam (one point per exercise submitted)
Example: if a student submits 2 exercises and obtains a 100% score in both exercises, the partial exam will be assessed for a maximum 80% score, and a 20% score, corresponding to the 2 exercises submitted, will be added to the global score.
2. The part related to practical sessions is worth 25% of the global score.
In order to do the practical exam and to pass the subject, attending and completing the practical sessions in the laboratory is compulsory.
In the practical sessions in the laboratory, the acquisition of the theoretical classes' fundamentals will be proved by implementing the designs proposed in the practical session's booklet.
The submission of each practical session report is also compulsory.
The reports are worth 5% of the global score, whereas the practical exam is worth 20% of the global score.
3. Those students that have followed the continuous evaluation will be able to do the recovery exam (extraordinary evaluation), which will consist of a single exam where all the theoretical knowledge acquired during the semester will be assessed. This exam will be worth 75% of the global score. In this case, in order to pass the subject, it will be necessary to obtain a 50% score in the recovery exam.
CHAPTER 1: INTRODUCTION TO DIGITAL ELECTRONICS
* Basics.
 Digital and analog signals. Definition and characteristics.
 Digital electronics. Applications.
CHAPTER 2: DIGITAL REPRESENTATION OF THE INFORMATION
* Digital representation of the information.
 Information concept and unit of information.
 Information codification.
* Numeral systems.
 Binary numeral system.
 Octal numeral system.
 Hexadecimal numeral system.
 System conversion.
* Binary codes.
 Natural binary code.
 Decimal codes expressed in binary code: BCD, Excess3 BCD.
 Cyclic and continuous binary codes: Gray and Johnson.
 Representation of signed numbers.
 Representation of fixed point and floating point numbers.
 Alphanumeric codes: ASCII.
 Applications.
CHAPTER 3: BOOLEAN ALGEBRA. LOGIC FUNCTIONS
* Boolean algebra.
 Boolean algebra postulates.
 Boolean algebra theorems.
* Logic functions.
 Definition of logic variable.
 Definition of logic function.
 Representation of logic functions. Truth table.
 Basic logic functions and their symbols (logic gates).
 Complete sets of logic gates.
 Function generation with logic gates.
* Simplification with logic functions.
 Simplification by application of theorems.
 Canonical forms for a logic function. Synthesis by minterms and maxterms.
 Simplification with Karnaugh maps. Examples.
 Simplification of incomplete functions.
 Simplification of multifunctions.
CHAPTER 4: DIGITAL ARITHMETIC SYSTEMS
* Binary arithmetic.
 Introduction.
 Arithmetic operations in binary natural code. Binary addition. Binary substraction. Substraction as an addition: Representation of negative numbers in ones¿ complement and in two¿s complement. Binary multiplication.
 Arithmetic operations in BCD: addition and substraction.
* Arithmetic circuit.
 Basic halfadder.
 Complete adder.
 Parallel adder with serial carry.
 Parallel adder with parallel carry.
 Serial adder.
 Basic halfsubstracter.
 Complete substracter.
 Addersubstracter.
 Binary multiplier.
 Arithmetic Logic Unit (ALU).
CHAPTER 5: OTHER COMBINATIONAL SYSTEMS
* Combinational circuits and subsystems.
 Combinational circuit concept.
 Digital multiplexer. Multiplexer extension. Applications of multiplexers: parallelserial conversion. Generation of functions.
 Encoders. Standard encoders. Priority encoders.
 Decoders. Mutual exclusive output decoders. Driver decoders. Decoder extension. Decoder applications: serialparallel conversion (demultiplexers). Generation of logical functions.
 Code coverters.
 Parity generator and checker. Parity generator and checker extension.
 Binary comparator. Comparator extension.
CHAPTER 6: SEQUENTIAL SYSTEMS
* Flipflop circuits.
 Sequential system definition.
 Types and characteristics: asynchronous and synchronous.
 R S flipflop.
 J K flipflop.
 T flipflop.
 D flipflop.
 Flipflop timing parameters.
* Shift registers.
 Register concept.
 Shift registers. Serial input, serial output. Serial input, parallel output. Parallel input, serial output. Parallel input, parallel output.
 Bidirectional register.
 Applications of registers. Sequence generator.
* Counters.
 Digital counters.
 Asynchronous counters. Decade counter.
 Synchronous counters. Serial and parallel carry.
 Reversible counter.
 Counters based on shift registers. Ring counter. Johnson counter. Antilockout counter.
 Applications.
* Analysis and design of synchronous sequential circuits.
 Analysis of synchronous sequential circuits.
 Transition tables and state diagrams: Mealy and Moore machine state.
 Synthesis of synchronous sequential systems.
CHAPTER 7: INTRODUCTIO TO VHDL
* Introduction.
* Basic programing elements in VHDL
 Directives
 Entity
 Architecture
* Different types of VHDL description
 Behavioral description
 Dataflow description
 Structural description
* Exercises with behavioral description
CHAPTER 8: INTEGRATED DIGITAL CIRCUITS: LOGIC FAMILIES
* Integrated digital circuits. Main logic families¿ general characteristics.
 NAND gate 74¿00
 TTL family and subfamilies
 Notation and encapsulation of integrated digital circuits.
 Characteristics or general parameters for digital circuits.
 Connectivity among different technologies
CHAPTER 9: MEMORIES
* Description of different types of memories
 Volatile memories: RAM (SRAM, DRAM).
 Nonvolatile memories: ROM, EPROM, EEROM, FLASH
 Memory description with functional blocks
 Address, data and control buses
 Memory characteristics: capacity, read and write speed
CHAPTER 10: PROGRAMABLE LOGIC DEVICES
 ROM programable encoders.
 Programable logic matrices (PLA).
 Programable AND logic matrices (PAL).
 Macrocell based PLDs
 FPGAs
 Programation software tools and introduction to VHDL
CHAPTER 11: ANALOGDIGITAL CONVERSION
* Digital and analog signal conversion.
* Digitalanalog converter (DAC).
 DAC based on a resistor ladder with unequal rungs.
 DAC based on an R2R resistor ladder network.
 DAC parameters.
* Analogdigital converter (ADC).
 ADC with comparators.
 Pulse width modulation ADC. Dual slope ADC.
 Counter type ADC.
 Successive approximation ADC.
 ADC parameters.
Access the bibliography that your professor has requested from the Library.
Title: PROBLEMAS RESUELTOS DE ELECTRÓNICA DIGITAL (*)
Author: C. Bariáin, I. R. Matías, F. J. Arregui
Editorial: Universidad Pública de Navarra
Title: FUNDAMENTOS DE SISTEMAS DIGITALES.
Author: THOMAS L. FLOYD.
Editorial: PRENTICE HALL.
Title: CIRCUITOS ELECTRÓNICOS: DIGITALES.
Author: MANUEL MAZO QUINTAS Y OTROS.
Editorial: SERVICIO DE PUBLICACIONES. UNIVERSIDAD DE ALCALÁ.
Title: FUNDAMENTOS DE ELECTRÓNICA DIGITAL
Author: CECILIO BLANCO VIEJO
Editorial: THOMSONPARANINFO
Title: CIRCUITOS ELECTRÓNICOS DIGITALES II
Author: ELIAS MUÑOZ MERINO y otros
Editorial: SERVICIO DE PUBLICACIONES UNIVERSIDA POLITECNICA DE MADRID
Title: VHDL: LENGUAJE PARA SÍNTESIS Y MODELADO DE CIRCUITOS
Author: FERNANDO PARDO CARPIO, JOSÉ A. BOLUDA GRAU
Editorial: PARACUELLOS DEL JARAMA: RAMA
Title: PROBLEMAS RESUELTOS DE ELECTRÓNICA DIGITAL (*)
Author: Javier García Zubía
Editorial: MCGRAWHILL
Title: PROBLEMAS DE CIRCUITOS Y SISTEMAS DIGITALES (*)
Author: CARMEN BAENA, MANUEL JESÚS BELLIDO, etc
Editorial: MCGRAWHILL
Title: EJERCICIOS DE ELECTRÓNICA DIGITAL. (*)
Author: ISIDORO PADILLA.
Editorial: DPTO DE PUBLICACIONES E.T.S. ING. DE TELECOMUNICACION MADRID.
Title: ELECTRÓNICA DIGITAL. (*)
Authors: L. CUESTA; A. GIL PADILLA; F. REMIRO.
Editorial: MCGRAWHILL
Title: SISTEMAS DIGITALES. INGENIERIA DE LOS MICROPROCESADORES
Authors: A. GARCIA GUERRA
Editorial: CENTRO DE ESTUDIOS RAMON ARECES
(*) Exercise books
The theoretical classes will take place in the "Aulario"
The practical sessions will take place in "Laboratorio de Electrónica Avanzada" (second floor  "Edificio de los Tejos)