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A detailed laboratory guide for students studying electrical engineering at international university. The guide covers the investigation of basic logic gates (not, and, or, xor, nand, nor) using simulation software, the derivation of other logic gates using universal gates (nand & nor), and the design and simplification of combinational logic circuits using logic gates and ics. The guide includes truth tables, circuit diagrams, and instructions for implementing circuits via simulation software.
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SCHOOL OF ELECTRICAL ENGINEERING
SCHOOL OF ELECTRICAL ENGINEERING
In this laboratory, students will study:
Investigate the basic logic gates by using simulation software
a. NOT gate
Low 1
High 0
Implement the circuit via simulation software and paste the result in here
A
SCHOOL OF ELECTRICAL ENGINEERING
c. OR gate
Low Low 0
Low High 1
High Low 1
High High 1
Implement the circuit via simulation software and paste the result in here
d. XOR gate
SCHOOL OF ELECTRICAL ENGINEERING
Low Low 0
Low High 1
High Low 1
High High 0
Implement the circuit via simulation software and paste the result in here
e. NAND gate
Low Low
Low High
High Low
High High
Implement the circuit via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
Using universal gate (NAND & NOR gate) to derive other logic gates
a. Using NAND to make other logic gates
74LS00 74LS
74LS
74LS
74LS
74LS
74LS
74LS
74LS
74LS
Truth table and correspond with logic gates of Figure 1b
A B Y (Output)
Figure 1a
Figure 1b
Figure 1c
Figure 1d
SCHOOL OF ELECTRICAL ENGINEERING
Implement the circuit via simulation software and paste the result in here
Truth table and correspond with logic gates of Figure 1c
Implement the circuit via simulation software and paste the result in here
A B Y (Output)
SCHOOL OF ELECTRICAL ENGINEERING
b. Using NOR to make other logic gates
74LS
74LS02 74LS
74LS
74LS
74LS
74LS
74LS
74LS02 74LS
Truth table and correspond with logic gates of Figure 2 b
Implement the circuit via simulation software and paste the result in here
A B Y (Output)
Figure 2a
Figure 2b
Figure 2c
Figure 2d
SCHOOL OF ELECTRICAL ENGINEERING
Truth table and correspond with logic gates of Figure 2 c
Implement the circuit via simulation software and paste the result in here
Truth table and correspond with logic gates of Figure 2d
A B Y (Output)
A B Y (Output)
SCHOOL OF ELECTRICAL ENGINEERING
Implement the circuit via simulation software and paste the result in here
Using K-map to simplify function above
The simplified 𝑭𝟏(𝑨, 𝑩, 𝑪) = C + 𝑨
Implement the new expression via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
b. Given the circuit below, find the function 𝑭𝟐
Write down the function 𝑭𝟐
Fill in the truth Table:
Implement the circuit via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
Write down the function 𝑭𝟑
Fill in the truth Table:
Implement the circuit via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
Using K-map to simplify function above
The simplified 𝑭𝟑
Implement the new expression via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
The simplified expression is 𝒇(𝑪, 𝑩, 𝑨) = 𝑪
Implement the circuit via simulation software and paste the result in here
SCHOOL OF ELECTRICAL ENGINEERING
b. Only Using NOR gates in IC 74HC02 to construct the circuit for expression
𝑪𝑩𝑨
The simplified expression is 𝒇(𝑪, 𝑩, 𝑨) = C + BA
Implement the circuit via simulation software and paste the result in here