1. ECNG 1014: Digital Electronics Lecture 1: Course Overview
Dr. Lucien Ngalamou
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2. Staff Contact Information
In-charge and Lecturer
Dr. Lucien Ngalamou – (Room 220, xt 3140)
Teaching Assistant
Patrick Browne
Lab Aides (LAs)
Partick Browne
Emilie Ramatour
Design styles
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3. Recommended Books
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4. Goals and Prerequisites
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5. Objectives
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6. Overview of Labs
Lab #1: Representation of Information (Application of your programming skills in C/C++)
Lab #2: Technology (TTL/CMOS characteristics)
Lab #3: Simulation and Rapid Prototyping of a simple digital circuit
Lab #4: MSI Counters and Registers
Lab #5: Introduction to VHDL with Xilinx ISE Tool
Lab #6:
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7. Grading and Collaboration
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8. Some Definitions What is Engineering? What is Digital Electronics?
Purposeful use of science
What is Digital Electronics?
Use of electrical circuits (digital circuits) to process and transform information.
Information are seen as set of discrete values (“0” or “1”)
Genesis of Digital Electronics
Claude Shannon noticed similarities between Boolean Algebra and electronic telephone switches
Shannon’s 1937 MIT Master’s Thesis introduces the world to binary digital electronics
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9. 65 Years of Digital Electronics
UNIVAC =
IBM = Industrial Business Machines
VLSI = Very-large Scale Integrated
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10. How do we describe Digital Circuits?
Using Logic symbols
Using Logic (Boolean) Equations
Using Truth Tables
Using Block Diagrams (inputs/outputs)
Using Timing Diagrams
Using Text Notation such as Register Transfer Language (RTL) or Hardware descriptive Languages (VHDL, Verilog).
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11. Digital and Analog Quantities
Electronics circuits can be divided in three broad categories:
digital,
analog,
and mixed analog-digital.
Digital electronics deals with signals that represent discrete values, analog electronics involves continuous values.
In practice the majority of electronic systems are mixed analog-digital systems.
In these systems, digital electronics is used for processing/presentation, while analog electronics for amplification/transmission
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12. Homework #1
Imagine the scenario of a phone call using a cellular phone. Sketch its analog and digital functionalities.
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13. How do we see the physical world?
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14. Electronic systems Systems on chip are everywhere
Technology advances enable increasingly more complex designs
Challenges:
Ride the technology wave
Cope with design complexity
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15. Integrated circuits Systems on Chip (SoC) Systems in a package (SiP)
Multi-processing SoCs (MPSoCs)
Systems in a package (SiP)
Silicon technology (CMOS)
Down scaling of feature sizes
Nanotechnologies on the horizon …
Different design styles
To address performance and cost issues
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16. Integrated Circuit Design Styles
Custom
Standard Cells
Compiled Cells Ma
cro Cells
Cell-based
Pre-diffused
(Gate Arrays)
Pre-wired
(FPGA's)
Array-based
Semicustom
Digital Circuit Implementation Approaches
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17. Cell-based Design (or standard cells)
Routing channel
requirements are
reduced by presence
of more interconnect
layers
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18. Field Programmable Gate Arrays Xilinx 4000 Interconnect Architecture12
Quad 8
Single 4
Double 3
Long
Direct
CLB 2
Connect 3
Long 12 4 4 8 4 8 4 2
Quad
Long
Global
Long
Double
Single
Global
Carry
Direct
Clock
Clock
Chain
Connect
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Courtesy Xilinx

19. Summary Computer-aided IC design methodology:
Capture design by HDL models
Synthesize more detailed abstractions
Optimize circuit parameters
Computer-aided system design methodology:
Support for Hardware/Software co-design
Synthesis of hardware, software and interfaces
Evolving scientific discipline
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