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I. INTRODUCTION
Technological growth in electronics very fast, if last some
years, electronics circuit use vacuous tube component, diskrit
component, like dioda, transistor, hence now have is other, that is
using digital system, and in digital equipments presentation of
information or data represent expressed numbers formation in the
form of is digital ( logic circuit). There are some elementary circuit
from digital logic, that is NOTE gate, AND gate, OR
gate, NAND gate, NOR gate, XOR gate and XNOR gate. This
experiment gate logic circuit aim to so that student know just
something which the included in logic gate, and know truth table
of from each logic gate. 2
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II. THEORY
On the introduction of Logic Gate
Logic gates or logic gate is an entity in electronics and
mathematics Boolean that turns one or more logic inputs to a
logic output signal. Logic gate is mainly implemented
electronically using diodes or transistors, but can also be built
using the arrangement of components that utilize the
properties of electromagnetic (relay), fluids, optical or even
mechanical.
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4. In the digital circuit, there is some logic gates are
used, such as:
Inverter gate (NOT)
An inverter (inverting) is a gate with an input signal and an
output signal where the output state is always opposite to the
input state. INV logic gates on the other names Datasheet TTL
IC 7404.
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5. AND gate
AND gate has two or more than two input signals, but only
one output signal. The AND gate, to produce a high output
signal then all input signals must be of high value. AND logic
gate at the other names Datasheet IC TTL 7408.
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6. OR gate
OR gate will provide a high output signal if one or all of
the input signal value, so it can be said that the OR gate output
signal is low only if all input signals of low value. OR logic gate
at the other names Datasheet IC TTL 7432.
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7. NAND gate
NAND gate is a NOT-AND, or an AND function is
reversed. In other words that the NAND gate will produce a low
output signal when all the input signal is of high value. NAND
logic gates at the other names Datasheet IC TTL 7400.
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8. NOR gate
NOR gate is a NOT-OR, or an OR function is reversed so
that it can be said that the NOR gate will produce a high output
signal when all of the input signal is of low value. NOR logic
gate at the other names Datasheet IC TTL 7402.
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9. XOR gate
XOR gate will produce a low output signal when all of the
input signal is low-value or high value any input or in other
words that the XOR will produce a low output signal when the
input signal value at all. XOR logic gate at the other names
Datasheet IC TTL 7486.
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10. X-NOR gate
X-NOR gate will produce a high output signal when all
input signals are equal (the opposite of the XOR gate). X-NOR
logic gate on a TTL IC Datasheet 74 266 other names.
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11. III. PROCEDURE
1. String up component like at circuit:
IC NOT 7404 IC NAND 7400
IC NOR 7402 IC XOR 7486
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12. IC XNOR 4077 IC OR 7432
2. Output test from each logic gate with input variation
from the circuit and write its output.
3. comparing output with truth tables of is each gate.
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13. IV. DATA ANALYSIS.
1. IC NOT7404 gate was composed of an inverter are
interconnected.
2. IC NAND7400 gate was composed of NOT and AND gates are
interconnected.
3. IC NOR7402 gate was composed of NOT and OR gates are
interconnected.
4. IC XOR7486 gate was composed of interconnected XOR gate.
5. IC gate XNOR4077 Executive was made up of gates, NOT and
OR are interconnected.
6. OR7432 gate IC was composed of OR gates are interconnected.
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14. V. CONCLUSION
IC consist of some logic gate.
Logic gate can be used to create many IC.
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15. VI. SUGGESTION
Practice is more conducive again.
Student expected to be more
focused in the following
experiments and more orderly in
making the circuit to be easily
understood.
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16. VII. BIBLIOGRAPHY
Mano, Morris. 2002. Digital Design. USA :
Prentice Hall.
Sutisna, 2000. Rangkaian Digital dan
Rancangan Logika. Jakarta: Erlangga.
www.ilmukomputer.com
www.wikipedia.com
www.google.com
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