Digital Circuits
ELT-309-CRF01
Summer 2014
Instructor:
Jim Trepka
Other Instructor
Information:
Office: 140 Jones Hall
Telephone: 398-7146
Email: jim.trepka@kirkwood.edu
Home Page: http://faculty.kirkwood.edu/jtrepka/
Section Number:
0219731
Monday 8:00-10:00
Tuesday 8:00-10:00
Wednesday 8:00-10:00
Thursday 8:00-10:00
Friday 8:00-10:00
Credit hours:
3
Course description:
Presents the analysis and design of digital circuits. Boolean algebra is
introduced as a tool in working with basic gates, flip-flops, counters, shift
registers, adders, timers and busses. Laboratory and computersimulation exercises provide enhanced understanding.
Prerequisites:
ELT-517
Course Materials
Needed:
1. Digital Fundamentals 10th Edition, Thomas L. Floyd, ISBN: 0-13235923-5 (Prentice Hall).
2. 35 in 1 Deluxe Digital Lab Exploration Kit, Chaney Electronics, Inc.
3. RF Clicker
Books and course materials for this course are available at the Kirkwood
Bookstore.
Learning Outcomes
and Course
Competencies:
1. Construct digital circuits from schematics.
2. Display professional conduct including teamwork, punctuality, and
proper language.
3. Troubleshoot digital circuits using a logic probe.
4. Define switch debouncing and build a circuit to debounce a switch.
Chapter 1 Competencies

Explain the basic difference between digital and analog quantities

Show how voltage levels are used to represent digital quantities

Describe various parameters of pulse waveform such as rise time,
fall time, pulse width, frequency, period, and duty cycle

Identify fixed-function digital integrated circuits according to
their complexity and the type of circuit packaging

Identify pin numbers on integrated circuit packages
Chapter 2 Competencies

Review the decimal number system

Count in the binary number system

Convert from decimal to binary and binary to decimal

Apply arithmetic operations to binary numbers

Determine the 1’s and 2’s complements of a binary number

Express signed binary numbers in sign-magnitude, 1’s
complement, 2’s complement, and floating- point format

Carry out arithmetic operations with signed binary numbers

Convert between the binary and hexadecimal number systems

Add numbers in hexadecimal form

Convert between the binary and octal number system

Express decimal numbers in binary coded decimal (BCD) form

Add BCD numbers

Convert between the binary system and the Gray code

Interpret the American Standard Code for Information
Interchange (ASCII)
Chapter 3 Competencies

Describe the operation of the inverter, the AND gate, and the OR
gate

Describe the operation of the NAND gate and the NOR gate

Express the operation of NOT, AND, OR, NAND, and NOR gates
with Boolean algebra

Describe the operation of the exclusive- OR and exclusive NOR
gates

Recognize and use both the distinctive shape logic gate symbols
and the rectangular outline logic gate symbols of ANSI/IEEE
Standard 91-1984

Construct timing diagrams showing the proper time relationships
of inputs and outputs for the various logic gates

Discuss the basic concepts of programmable logic

Make basic comparisons between the major IC technologiesCMOS and TTL

Explain how the different series within the CMOS and TTL
families differ from each other

Define propagation, delay time, power dissipation, speed-power,
product, and fan-out in relation to logic gates

List specific fixed-function integrated circuit devices that contain
the various logic gates

Used each logic gate in simple applications

Troubleshoot logic gates for opens and shorts by using the
oscilloscope
Chapter 4 Competencies

Apply the basic laws and rules of Boolean algebra

Apply DeMorgan’s theorems to Boolean expressions

Describe gate networks with Boolean expressions

Evaluate Boolean expressions

Simplify expressions by using the laws and rules of Boolean
algebra

Convert any Boolean expression into sum-of-products (SOP) form

Convert any Boolean expression into a product of-sums (POS)
form

Use a Karnaugh map to simplify Boolean expressions

Use a Karnaugh map to simplify truth table functions

Utilize “don’t care” conditions to simplify logic functions

Write VHDL program for simple logic

Apply Boolean algebra, the Karnaugh map method, and VHDL to a
system application
Chapter 5 Competencies

Analyze basic combinational logic circuits, such as AND-OR, ANDOR-Invert, exclusive-OR, and exclusive-NOR

Use AND-OR and AND-OR-Invert circuits to implement sum-ofproducts (SOP) and product-of-sums (POS) expressions

Write the Boolean output expression for any combinational logic
circuit

Develop a truth table from the output expression for a
combinational logic circuit

Used the Karnaugh map to expand an output expression
containing terms with missing variables into full SOP form

Design a combinational logic circuit for a given Boolean output
expression

Simplify a combinational logic circuit to its minimum form

Use NAND gate to implement any combinational logic function

Use NOR gates to implement any combinational logic function

Write VHDL programs for simple logic circuits

Troubleshoot faulty logic circuits

Troubleshoot logic circuits by using signal tracing and waveform
analysis

Apply combinational logic to a system application
Chapter 6 Competencies

Distinguish between half-address and full-address

Use full-address to implement multibit parallel binary address

Explain the differences between ripple carry and look-ahead carry
parallel adders

Use the magnitude comparator to determine the relationship
between two binary numbers and use cascaded comparators to
handle the comparison or larger numbers

Implement a basic binary decoder

Use BCD-to-7-segment decoders in display systems

Apply a decimal-to-BCD priority encoders in a simple keyboard
application

Convert from binary to Gray code, and Gray code to binary by
using logic devices

Apply multiplexers in data selection, multiplexed displays, logic
function generation, and simple communications systems

Use decoders as demultiplexers

Explain the meaning of parity

Use parity generators and checkers to detect bit errors in digital
systems

Implement a simple data communications system

Identify glitches, common bugs in digital systems
Chapter 7 Competencies

Use logic gates to construct basic latches

Explain the difference between S-R latch and a D latch

Recognize the difference between a latch and a flip-flop

Explain how S-R, D, and J-K flip-flops differ

Understand the significance of propagation delays, set-up time,
hold time, maximum operating frequency, minimum clock pulse
widths, and power dissipation in the application of flip-flops

Apply flip-flops in basic application

Explain how retriggerable and nonretriggerable one-shots differ

Connect a 555 timer to operate as either an astable multivibrator
or a one-shot

Troubleshoot basic flip-flop circuits
Assessment of
Student Learning:
Student learning will be assessed via exams, homework, and class room
participation.
Late Work/Make-up
Test Policy:
Missed exams must be made up on or before the next class period. In a
rare situation where the exam can not be made up in that time period,
the student will be given an exam different than that taken by the rest of
the class.
Class Attendance
Policy and College
Sponsored Activities:
As stated in the Student handbook: In compliance with Public Law 105244, Kirkwood Community College makes a wide variety of general
institutional information available to students.
For additional information, go to
http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf
Productive Classroom See student handbook
Learning
http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf
Environment:
Plagiarism Policy:
See student handbook
http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf
Campus Closings:
See student handbook
http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf
Learning
Environment
The classroom and laboratory conditions will be conducive to teaching
and student learning. To promote and maintain that environment, all
Expectations:
pagers, cellular phones, and other autonomous means of communication
shall be deactivated during instructional periods. RINGING OF CELL
PHONES DURING CLASS WILL RESULT IN POINTS DEDUCTED FROM
YOUR CLASS ROOM PARTICPATION AND PROFESSIONAL CONDUCT
GRADE. Participants are expected to come to class prepared to actively
participate in class.
Americans with
Disabilities Act:
Students with disabilities who need accommodations to achieve course
Competencies should file an accommodation application with Learning
Services, Cedar Hall 2063 and provide a written plan of accommodation
to your instructor prior to the accommodation being provided.
Student Evaluation:
Exams - 3 exams will be given during the session – 40% of final grade.
These exams will be comprehensive. Exam 1 will be worth 10%, Exam 2
will be work 10%, and Exam 3 will be worth 20% of final grade.
Build Exam – A circuit build exam will be worth 5% of your final grade.
Homework Homework will be assigned according to the schedule on
my course web page. Homework will be worth 20% of your final grade.
Labs - Labs from the 35 in 1 Deluxe Digital Lab Exploration Kit and any
other lab activities will be worth 25% of your final grade.
Class Room Participation and Professional Conduct - 10% of your
final grade
Points will be added to classroom participation and professional conduct
grade based on the following:
1. Arrival at class by 8 am which will be measured by clicker’s questions
2. Participation in debugging exercises and Multisim exercises
Points will be deducted from the classroom participation and
professional conduct grade for the following:
1. Inappropriate language or jokes.
2. Ringing of cell phones in class.
3. Disrupting the class.
4. Leaving class early or not arriving back to class by 9:00, after
the 8:50 break.
How final grades are
determined:
As described above.
Grading Scale:
B+
A
94 - 100
B
87 –
89.99
C+
83 –
86.99
C
77 –
79.99
D+
73 –
76.99
D
67 –
69.99
63 –
66.99
F
59.99
and
less
A-
90 –
93.99
B-
80 –
82.99
C-
70 –
72.99
D-
60 –
62.99
Drop Date:
Students dropping a class during the first two weeks of a term may
receive a full or partial tuition refund for 16 week terms, for shorter
courses check with Enrollment Services for total withdraw information.
Details of the refund schedule are available from Enrollment Services in
216 Kirkwood Hall. For detailed discussion of drop dates and policies,
please read the student handbook.
Final Exam
Information:
The final exam for this class is scheduled on Thursday June 26, 2014 at 8
am for those with perfect attendance.
Emergency
Information:
See student handbook
http://www.kirkwood.edu/pdf/uploaded/630/student_handbook.pdf
Other Information:
none