Digital Electronics Daily Lessons - syllabus

March 2018
Date Warm-up Class Activities Objectives. SWBAT:
19 Simplify this using DeMorgan's simplify demorgan not(not x and ( y and not z))
  1. Take notes in your notebook on MSI synchronous counters. Draw the comparison table on slide 2 and fill it in. Draw, label, and describe the connection diagrams for the 74LS163 and 74LS193.
  2. If you still need to wire the 74LS74, come in PRIDE time B today, PRIDE time A tomorrow, or after school today.
  3. QUIZ Wednesday on counters and 7 segment displays.
  • Describe MSI synchronous counters

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16 Write down what each 7 segment display will show.
  1. See something / say something
  2. Draw a 74LS74 0-3 synchronous up counter circuit in your notebook, then wire it. Use LEDs to show the binary count from Q1 and Q2 in the right order.
  • Draw a SSI 0-3 counter with D flip flops
15 Why does a 74LS76 have 16 pins and a 74LS74 only have 14 pins if both have 2 flip flops inside?

Your choice, do one each day

  1. Wire the 74LS74 0-3 up counter circuit that you drew in your notebook. The chips are next to Michael Gill.
  2. Take notes in your notebook on yet another kind of counter circuit, the synchronous counter. (the presentation is in OneNote and has bright stars that show what you need to copy into your notebook)
  • Wire a SSI 0-3 counter with D flip flops
  • Take notes on differences and the workings on synchronous counter circuits
14 π Which are the Q output pins for a 74LS74?
13 Review: Take the resistor challenge. Get at least a score of 10 and show me.
  1. Review the 74LS76 flip flop wiring and timing.
  2. One more trace of flip flop outputs, trace the output from JK flip flop circuits
  3. Wire the 74LS76 counter circuit
  • Analyze JK flip flop circuits and wire
12 If a 200MHz clock signal is sent through a JK flip flop with J and K high, what will be the speed of the signal coming out of Q?
  1. Compare the output wave forms of 2 different JK flip flop circuits.
  2. Analyze and plan to wire a 74LS76 flip flop chip.
  • Analyze and plan for a circuit that uses JK flip flops
9 Which pins should be high to display a "9" on a common ANODE 7-segment display?
  1. Create the MSI counter circuit shown in the presentation then change it to mod 14. Paste a screenshot in OneNote MSI Asynchronous counter.
  2. Add MSI counter notes to your notebook.
    1. Describe the advantages and disadvantages of SSI and MSI counters.
    2. Explain how the reset works on a 74LS93
    3. Draw and label a picture of a Mod 14 counter circuit diagram (NOT identical to the one in the presentation)
    4. Explain why the QA input goes into INB
  • Describe benefits of MSI and SSI counters.
  • Illustrate the diagram for a 74LS93 counter circuit.
8 Which pins should be high to display a "5" on a common CATHODE 7-segment display?
  1. Presentation: MSI counters.
  2. Put labeled screenshots on your OneNote Count Up Count Down page
  3. Create a MSI counter circuit shown in the presentation.
  • Simulate SSI and MSI Mod counters
7 Mod also means the modified count of a counter. What does a mod 6 counter count?
  1. Modify your up and down flip flop counters to count from your computer number mod 5+10 to computer number mod 5+1.
  • Change the start and end values of SSI flip flop counters
6 Mod means the remainder after division. What is 15 mod 4?
  1. Discuss how to limit count ranges of counters.
  2. Simulate circuits for up and down counters with JK and D flip flops. Count up with D and down with JK
  • Design circuits that count up and down from fixed values.

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5 How much capacity does this capacitor have? (how to read a capacitor)
  1. Take notes on flip flop counters in your notebook. Draw a diagram of a 2 bit D flip flop up counter, a 3 bit JK flip flop down counter. What is the ripple effect? Explain how you change a counter to count up or down and how to stop counting at a certain number (Mod)
  2. Complete your event detector in Multisim and OneNote.
  • Describe how to change the count sequence for digital counters.
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1 Predict the value of Q in this diagram.
  1. Finish Multisim event detector using a flip flop. Answer questions in OneNote.
  • Simulate an event detector

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February 2018
Date Warm-up Class Activities Objectives. SWBAT:
28 What does asynchronous mean for a flip flop input?
  1. Flip flop timing diagrams
  2. Event detector circuit
  • Predict flip flop output based on type and inputs.
  • Create flip flop counter circuits
27 Draw a positive edge triggered flip flop with an asynchronous clear switch.
  1. Quiz
  2. Notebooks will be graded, highlight any work from the previous check to be updated.
  • quiz
26 What does a shift register do?
  1. Honors and AP
  2. Review shift registers, flip flops ,counters and 2's compliment for quiz tomorrow
  3. Notebooks will be collected at the end of class tomorrow.
  • Make connections betwee counters, flip flops and binary.

All classwork this week was in OneNote notebook.



Class Activities 

Objectives. SWBAT: 

Feb 23 

Name one application of flip flops 

In OneNote, in Unit 3 Sequential Logic on the Shift Register page, build the circuit in Multisim that is shown, modify it as described and paste a screenshot on the page with answers to the questions 

Create a simulation of a shift register. 

Feb 22 

What is the difference between a D and a JK flip flop? 

Copy the examples of each kind of flip flop application with a brief explanation in your notebook (powerpoint is on OneNote and also on 

Describe applications of flip flops 

Feb 21 

What pins should be high on a common cathode 7-segment display to show a "9"? 

  1. Add notes to your notebook on flip flops. Show the difference between the diagram of a positive and negative edge triggered flip flop. Be sure to show the difference between a D flip flop and a JK flip flop as well as both the SSI and MSI versions. Describe what the 2 asynchronous inputs are and how they work. 
  2. Add diagrams of the pin outs of the 7474, 7475, and 7476 chips. 
  3. I will regrade notebooks on Monday 2/26 and add partial points for any work that was missing the last time notebooks were graded. 
  • Draw MSI and SSI flip flops 

  • Draw pin outs of flip flop/latch chips 

20 What are the colors on a 48000 Ohm resistor that is accurate to 5%?
  1. Finish flip flop presentation, look at applications of flip flops
  2. Do this interactive flip flop exercise.
  • Explain flip flop functions
16 Determine the period, frequency, duty cycle and amplitude of this square wave.
  1. Overview of flip flops.
  2. Simulate flip flops using this handout.
  • Draw timing diagrams and inner workings of flip flops.
15 Which of the wires QA, QB, QC and QD should be high to get a counter to count from 0-5?
  1. Finish wiring.

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  • Wire a counter circuit
14 valentine day What does a demultiplexer do?
  1. Discuss and draw in your notebook: how to reset the count to go from 0-9
  2. Wire a counter that counts from 0-9 with a 7 segment display or help others.
  • Wire counters that count to a certain range
13 Write -18 as a 2s compliment binary 8-bit number
  1. Wire a counter circuit using these directions
  2. Add a 7-segment display
  • Wire counter circuits
12 Which gate can be used to calculate the sum bit when adding 2 binary numbers?
  1. Presentation: counters and the 7493
  2. In your notebook draw the pin out for a 74LS93 and the circuit for a basic counter with a switch.
  3. How can a counter be combined with a 7 segment display?
  • Plan counter circuits
9 What's the largest binary number that can fit into 8 bits?
  1. Simulate a 2 bit adder
  • simulate math circuits
8 What pins should be high on a common cathode 7-segment display to show a "3"?
  1. Copy the truth table, equations, and AOI/XOR circuit for a full adder from the presentation.
  2. Find out what the pins are on a 74LS183 and copy it into your notebook. Draw a MSI circuit to add 2 2-bit numbers using 2 74LS183 chips in your notebook showing how the chips would actually be wired. NOT the circuit in the presentation, but what it would really look like to wire the chips.
  • Draw MSI and SSI adder circuits
7 Write 33 as a negative number in 2's compliment using 8 bits.
  1. Finish the exercise on 2's compliment.
  2. Look at how adder circuits are created. In your notebook, draw a picture of the 2 gates needed to make an adder to add any 2 bits (called a half adder)
  • Show how XOR is used in adders.
  • Convert binary numbers to 2's compliment representation to add an subtract numbers.
6 How are negative numbers represented in binary?
  1. Add notes on 2's compliment arithmetic to your notebook. Show how to convert a negative number like -13 into 2's compliment binary and all the steps to do 9 + -5 and -9 + -5
  2. Practice 2's compliment arithmetic
  • Convert binary numbers to 2's compliment representation to add an subtract numbers.
5 What does a multiplexer do?
  1. Demonstrate OPEN deMux circuit in Multisim.
  2. Short intro to 2's complement arithmetic. (no notes needed)
  3. Finish adding screenshots to OneNote for 7447 and 7448's
  • Describe how an odometer is like 2's compliment representation
  • Simulate demultiplexer circuits
2 What is the maximum value of a red green blue gold resistor?
  1. Review OneNote Unit 2 7-segment page
  2. Complete MUX deMUX activity.
  • Create circuits that control 7-segment displays
1 Draw a waveform of 2Hz with a duty cycle of 75%
  1. Presentation: multiplexers and demultiplexers. Add 2 sketches to your notebook, a 4-1 MUX and a 1-4 DEMUX.
  2. Complete 7-segment work on the OneNote Unit 2 7-segment page.
  • Create circuits for multiplexers and demultiplexers.
January 2018
Date Warm-up Class Activities Objectives. SWBAT:
31 Which pins should be high to display a "2" on a common ANODE 7-segment display?
  1. Presentation: 7-segment display drivers.
  2. Complete these steps on the Seven Segment display paper. Write answers and paste screenshots in OneNote Unit 2 7-segment page.
    • Step 2 (the first one) Analyze the seven-segment common cathode circuit and predict what will be displayed
    • Step 4(listed as step 3) Simulate a 74LS47 with a cc ssd and screenshot it displaying the number 4.
    • Step 5(listed as step 4) Replace the 74LS47 with a 74LS48 and modify the circuit so it will still work, screenshot it displaying the number 5.
  3. Hand in Completed Activity 2.3.1 Hex and octal paper
  • Create and analyze circuits with 7-segment displays and drivers in various combinations.
30 Which pins should be high to display a "4" on a common CATHODE 7-segment display?
  1. Due today: Create a 7-segment display page in your notebook:
    1. A diagram labeling the 7 segments on a 7 segment display
    2. From your notes on 7 segment displays; cut out the simple common anode and common cathode circuits in the middle of the page and add them to your notebook (there are scissors and glue sticks on the front table and extra copies of the handout)
    3. From your How 7-segment works notes;
      • Add the diagrams that show what the hex digits 0-F look like on a 7-segment display
      • Add your kmap and equation for the one segment you did an equation and circuit for.
      • A print out of your multisim circuit showing the DCD hex display with the one segment that you did the Kmap and circuit for.
  2. Due tomorrow: Completed Activity 2.3.1 Hex and octal paper
  • Document the 2 kinds of 7-segment displays and how logic circuits are used to display hexadecimal digits on them.


7 segments
29 Convert the hex number 2D to binary, decimal, and octal.
  1. Simulate the DCD hex circuit with 4 switches.
  2. Work through how a 7 segment display circuit works. Each group is assigned on segment from a-g to Kmap and build a circuit for.
  • Simulate a display circuit
  • Use the design process to explain the inner workings of a 7 segment display
26 Convert the binary number 100011001010 to hex and octal
  1. Complete hex and octal. Discuss conclusion questions.
  2. Learn about 7 segment displays with the powerpoint and fill in the notes.
  • Review conversions from binary to hex and octal.
  • Describe the features of 7 segment displays.
25 What is the largest binary number that can fit into 4 bits?
  1. Learn about hexadecimal and octal.
  2. Do worksheet on hex and octal
  • Convert numbers from decimal, binary, octal and hexadecimal

Go to first semester

draw wires in paint, put in OneNote? 74ls175 (wiring diagram)

what will the 7 segment displays show?
































2.4 PLD

Use 13q2.htm

how to create a boolean expression from a logic gate diagram

Boolean algebra simplification

example of Boolean algebra simplification

go to and complete as many of the 18 levels as you can. in OneNote on the Crack the Circuit page, show a screenshot of which circuit represents an AND gate where a light is on only if both switches are closed, If you cannot complete them all, show the highest level you achieved and explain why you got stuck there.

1.1.8 soldering


Intro to basic electronics

Demonstrate 2 ways to get a 0.5 amp current