TECH 3232
TECH 3232
Digital Technology
Fall 2025

Instructor Info

Daniel Kohn
Email: dekohn@memphis.edu
Office ET218
Office Hours

Course Info

Course Policies
Formal Report Guide
 • Numbering Equations in Word
GradeWatch Access
Submit Assignments

Textbooks

No textbook is required for this class. Materials used in the class are taken from Floyd, Digital Fundamentals (any edition). Other online references are listed below:
All About Circuits Volume IV - Digital
Digital Logic Design

Simulator

SimcirJS
SimcirJS (set and get)
SimcirJS Documentation

Software

KiCad

Course Outline

DateTopicReadingHandoutsAssignments
Aug 26Welcome
Course Policies
Intro to Digital
 Chp 1 PPT 
Aug 28No Class (Instructor Out)    
Sep 2Basic Gates (and, or, not)
Intro to Binary
Lab Discussion
 Chp 3 PPT
Simulations
Lab 1 - Basic Logic Gates. Make sure you demo each circuit to the instructor for sign off. Due end of lab.

Corrected Link to "The Pull-up Resistor" is https://archive.seattlerobotics.org/encoder/199703/basics.html
Sep 4Basic Gates (cont)

Number Systems
Number Systems (Bin, Hex, Oct)Chp 2 PPTHW #1 - Number Conversions (due Sep 9 at start of class). Submit via same link for instant feedback AND submit hand written work at start of class for credit and only one submission will be accepted for this assignment!
Sep 9Logic Circuits
Combining Gates
Deriving Truth Table
Deriving Boolean Equation
 Typed notes

Simulations
HW #2 - Due next class (Sep 11) at start of class (paper copy).

Lab #2 - Due end of lab.
Sep 11Boolean Algebra Notes (Prev Year, but same material)

Boolean Algebra Rules Sheet
HW #3 Due start of next class (Sep 16). Turn in hand written work.
Sep 16Boolean Algebra (Cont) Notes (Prev Year, but same material)

DeMoregan's Theorem
Chp 7 (All About Circuits)
HW #4 Due at start of class Sep 23

Lab #3 - Due end of lab.
Sep 18TEST #1

All material covered up to the start of boolean algebra (Lecture Sep 11), Lab #1 and Lab #2 (exclude question on boolean algebra minimization)

   
Sep 23Go over HW #4

SOP and Demorgan

Universal Gates
 SOP/POS Handout
SOP/POS Simulation

Universal Gates
Universal Gate Simulation

Unversal Gates full explanation

Example Nand Gate Conversion
HW #5 Due start of next class.

Lab #4 - Due in one week. Schematics will be drawn using KiCad.

Logic Probe Reading
Sep 25Go over HW #5  HW #6 Due Sep 30 at start of class.
Sep 30Adders, Binary Addition, 2's Comp2's CompLecture PPT

Lecture Notes
HW #7 Due start of next class.

Lab #5 - Due at end of lab.
Oct 2Complex TTL DevicesChp 6Lecture Notes 
Oct 7Return Test #1

Answer any questions for Test #2

Discuss Lab #6
  Lab #6 - with a partner, build the Circuit and complete the handout and submit electronically.

7-Seg Datasheet
7447 Datasheet
Oct 9TEST #2

Boolean, Universal Gates.

There will also be questions starting from SOP/POS equations derived from T.T. and equations derived from circuits

   
Oct 14Fall Break    
Oct 16No Class (instructor out of town)   
Oct 21K-MapsK-MapsClass NotesLab #7 - Formal Lab Report due at start of lab on Nov 4 via electronic and paper submissions. (Optional Draft due Oct 28)

HW #8 - Due start of next tuesday's class.
Oct 23No Class (instructor out)

Work on HW #8 and Lab #7
   
Oct 28|   
Oct 30|   
Nov 4|   
Nov 6K-Map Review

555 Timers

Intro to Latches and Flip Flops
555 Timer Notes

555 Notebook
Lecture Notes
Simulations
HW #8b - Due start of next tuesday's class.
Nov 11K-Map HW Review

FF/Latch (Cont)
  HW #9 - Go the the link, log in using your name and your gradewatch password and select attempt 1 and the SR D FF Latch assignment. Fill in the correct answers for each timing diagram (using underscore and minus for Low and High respectively). When submitted review your mistakes. If you missed more than one, repeat (incrementing the attempt number by one each time until you get at least 7 out of 8).

Due: Nov 18 at start of class.

Grading: score achieved minus 5 points off for each addititional attempt.

Lab #8 - Due end of lab.

Full user's manual for the scope can be found HERE.
Nov 13TEST #3
K-Maps, Binary Math (2s Comp), Adders and Complex TTL Devices (Stressing K-Maps)
   
Nov 18Intro to Counters Lecture NotesLab #9 - BCD Counter - due at start of next week's lab. Instructor will accept inperson OR Youtube Videos for demo.

Note: We are low on 7400 IC's. You can use a 7401 IC instead, but the pinout is different (refer to data sheet) and you MUST put a 1K resistor from the output pin to 5V or it will NOT work correctly!

KiCad Parts/Symbols

Lab09a Scope Setup
Lab09b scope setup

HW #10 - Go the the link, log in using your name and your gradewatch password and select attempt 1 and the JK Flip Flop assignment. Fill in the correct answers for each timing diagram (using underscore and minus for Low and High respectively). When submitted review your mistakes. If you missed more than one, repeat (incrementing the attempt number by one each time until you get at least 3 out of 4).

Due: Start of class in one week.

Grading: 5 points off for each additional attempt. Since 3/4 is only a 75% (without repeat penalty), you may continue to attempt until you get them all right (with the 5% per try will only be deducted for those repeats under 3/4).
Nov 20Design of Sync Counters Design of Synchronous Counters
make sure you have version 1.2 with the fix of the equations in step 5 of the first example
Final Lab Project - Due Study day (Dec 4, 2025) by 5pm.

Excel Template

Sequence Assignment Site
Nov 25TEST #4
Optional test on Latches, Flip-Flops, Timing Diagrams, Definitions

Will drop the lowest of the 4 test scores if test #4 is taken.
  Work on Final Lab Project
Nov 27Thanksgiving Break (no class)    
Dec 2Exam Review  Work on final lab project
Dec 11
(8am - 10am)
Comprehensive Exam   
     

Reference Links

Common IC's
Boolean Algebra Rules
TTL Data Book (ON-Semi 2.5 MB)
TTL Pocket Databook (TI 4.9 MB)

Requested Links

Boolean Checker
K-Map Solver
Bill Kleitz Digital Logic Chapter 10 - Flip-Flops and Latches (Multiple Videos)

The Organic Chemistry Tutor