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The document is a lab manual for studying and verifying truth tables of various logic gates using an experimental kit. It outlines the learning outcomes, apparatus required, theoretical background on logic gates, and a detailed procedure for conducting experiments. Additionally, it discusses potential systematic and random errors that may affect the results.
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Save logic gates For Later EEE Lab Manual | 2024
TITLE: - To study and verify trut
(AND/OR/NOTINANDINORIKORIR NOISES coe
Learning Outcome:
i) To study basic symbols of various Logic Gates
ii) To veri
i) sate Truth Tables of various Logic Gates practically on Experimental Kit.
iii) Identify various ICs and their specification.
APPARATUS: -
+ Logic gates (IC) trainer kit
+ Connecting patch chords.
+ IC 7400, IC 7408, IC 7432, IC 7406, IC 7402, IC 7404, IC 7486
THEORY:-
The basic logic gates are the building blocks of more complex logic circuits.
These logic gates perform the basic Boolean functions, such as AND, OR,
e@ NAND, NOR, Inversion, Exclusive-OR, Exclusive-NOR. Fig. below shows the
circuit symbol, Boolean function, and truth. Itis seen from the Fig that each gate
. has one or two binary inputs, A and B, and one binary output, C. The small circle
‘on the output of the circuit symbols designates the logic complement. The AND,
OR, NAND, and NOR gates can be extended to have more than two inputs. A
) gate can be extended to have multiple inputs if the binary operation it represents
is commutative and associative
These basic logic gates are implemented as sm
(ssiCs) or as part of more complex medium scale (MSI) or very large-scale
(LSI) integrated circuits. Digital IC gates are classified not only by thelr logic
0 the specific logic-circuit family to which they belong. Each
pon which more complex digital
all-scale integrated circuits
operation, but als ‘
own basic electronic circuit uy
logic family has its ;
e developed. The followin
funcd logic families are the most
circuits and functions ar‘
frequently used.
TIL- Transistor-transistor logic
ECL - Emitter-coupled logic
MOS - Metal-oxide semiconductor
e i ctor
CMOS - Complementary metakoxide semicondu
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and relat
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4 CMOS, are based ©
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a F less,
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eng
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than Mi
qT ICs are usually distinguished by numerical designation as the 5499
ang
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=NO | GATE ‘SYMBOL a
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Search A.
s a a sO cae Tale c
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1 i 0
Z| NOR IC = v v ¢
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1 0 7
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Figure 1; Basic Gates and Truth TablesAND GATE 7408
Yoo
fal al
|
3, ORGATE 7432PROCEDURE:
@. Place the IC on the Experimental kit.
b. Connect Vec and Ground to respective pins of IC on Trainer Kit.
© Connect the inputs to pins from the Input Section provided in the
IC Trainer Kit,
4. Connect the outputs of IC to the of LEDs on Output Section.
e. Apply various combinations of Inputs according to the truth table and
observe condition of LEDs (Output). Verify Truth Tables,
CONCLUSION: The truth -table Fox basic logic gates 1905 vex,
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*Vazietions in +he Suppl i
an availa Voltage sight affect the perfor
SYSTEMATIC ERRORS: |opse Ox WK
RANDOM ERRORS:
Ciscuit noise & inteexence impacting he cbserver! oud
*Flickeving IED @utput Coused by Unstable input signals
fointly path cords . \
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