Activity 3.1.1 Sequential Logic:
D Flip-Flops and J/K Flip-Flops
Before we jump into a discussion of practical applications of J/K or D flip-flops, lts us
revist how flip-flops work.
1. For the 74LS74 D flip-flop shown below, complete the timing
Activity 2.1.4 Circuit Simplification:
Have you ever had an idea that you thought was so unique that when you told someone else
about it, you simply could not believe they thought you were wasting your time with it? If so,
Activity 2.1.3 AOI Logic Implementation
Would you pay $199 for a written specification for an MP3 player? Would you pay $299 for
the schematics for a cell phone? Of course not. You dont pay for the specifications or the
schematics; you pay fo
Activity 2.1.2 AOI Logic Analysis:
Circuit to Truth Table to Logic Expression
What does this circuit do? Does the circuit that I designed work? If you are able to analyze
AOI logic circuits, you will be able to answer these questions. The fir
Activity 2.1.5 Circuit Simplification: DeMorgans
Despite all of the work done by George Boole, there was still more work to be done.
Expanding on Booles studies, Augustus DeMorgan (1806-1871) developed two additional
theorems that no
Activity 2.3.2 Seven-Segment Displays
1. Lets investigate what alpha-numeric characters we can display on a seven-segment
a. Using the CDS, enter the common cathode seven-segment display test circuit shown
Activity 2.3.4 Twos Complement Arithmetic
1) Express the following decimal numbers as their 8-bit - 2s complement binary
2) Express the following 8-bit - 2s complement binary number as their decimal
3) Perform each of the
1. Throughout this course you will use an ever-increasing list of integrated circuits. You
will need to obtain datasheets for these circuits. Since the focus of this unit is the
Random Number Generator design, we will obtain the datasheets for each integr
1. For the 555 Timer oscillator circuit shown below, calculate the frequency and duty
cycle of the output signal based on the component values shown.
2. Use the CDS to enter and simulate the 555 Timer oscillator circuit. Use the
oscilloscopes markers to m
1. Complete the following decimal-to-binary number conversions. An example problem
is shown below. If available, use the base conversion feature of your calculator to check
a) 17 (10)
b) 34 (10)
c) 58 (10)
1. Using the Circuit Design Software (CDS), create the circuit below.
tart the simulation.
b) Set the input switches P and C to 5v. Again, since PR and CLR are active low
inputs, this will make them both inactive. Toggle the input T several times. Th
1. For each of the two analog signals shown below, determine their amplitude (peak),
amplitude (peak-peak), period (T), and frequency (f). Be sure to put your answer in
proper engineering notation and use the correct units.
Now its time for you to implement your first AOI combinational logic circuit. The circuit that we
will use for this purpose is a Car Safety Buzzer design.The design specifications are as
The buzzer is on whenever the door is open or whe
If you were to use your Random Number Generator to play Monopoly during a family game
night, you would want the numbers rolled to be random and evenly distributed (i.e., the
likelihood of rolling a one is the same as two, is the same as three,
1. For each of the two analog signals shown below, determine their amplitude (peak), amplitude (peakpeak), period (T), and frequency (f). Be sure to put your answer in proper engineering notation and use
the correct units.
Amp(peak): 7.5 V