Gerbang Logika

Gerbang logika terutama diimplementasikan secara elektronis menggunakan diode atau transistor, akan tetapi dapat pula dibangun menggunakan susunan komponen-komponen yang memanfaatkan sifat-sifat elektromagnetik (relay), cairan, optik dan bahkan mekanik.

Gerbang elektronika

Untuk membangun sistem logika yang berfungsi secara penuh, relay, tabung hampa, atau transistor dapat digunakan. Contoh gerbang logika yaitu logika resistor-transistor (resistor-transistor logic / RTL), logika diode–transistor (diode-transistor logic / DTL), logika transistor-transistor (transistor-transistor logic / TTL), dan logika complementary metal–oxide–semiconductor (CMOS).

Jenis-jenis gerbang logika

Nama

Fungsi

Lambang dalam rangkaian

Tabel kebenaran

IEC 60617-12

US-Norm

DIN 40700 (sebelum 1976)

Gerbang-AND
(AND)

Y=A\wedge B

Y=A\cdot B

Y=A\,B

A	B	Y
0	0	0
0	1	0
1	0	0
1	1	1

Gerbang-OR
(OR)

Y=A\vee B

Y=A+B\!

A	B	Y
0	0	0
0	1	1
1	0	1
1	1	1

Gerbang-NOT
(NOT, Gerbang-komplemen, Pembalik(Inverter))

Y={\overline {A}}

Y=\neg A

A	Y
0	1
1	0

Gerbang-NAND
(Not-AND)

Y={\overline {A\wedge B}}

Y=A{\overline {\wedge }}B

Y={\overline {A\,B}}

A	B	Y
0	0	1
0	1	1
1	0	1
1	1	0

Gerbang-NOR
(Not-OR)

Y={\overline {A\vee B}}

Y=A{\overline {\vee }}B

Y={\overline {A+B}}

A	B	Y
0	0	1
0	1	0
1	0	0
1	1	0

Gerbang-XOR
(Antivalen, Exclusive-OR)

Y=A\,{\underline {\lor }}\,B

Y=A\oplus B

atau

A	B	Y
0	0	0
0	1	1
1	0	1
1	1	0

Gerbang-XNOR
(Ekuivalen, Not-Exclusive-OR)

Y={\overline {A\,{\underline {\lor }}\,B}}

Y=A\,{\overline {\underline {\lor }}}\,B

Y={\overline {A\oplus B}}

atau

A	B	Y
0	0	1
0	1	0
1	0	0
1	1	1

Lihat pula

Referensi

Pranala luar

(Inggris) Symbols for logic gates Diarsipkan 2021-01-06 di Wayback Machine.. Twenty First Century Books, Breckenridge, CO.
(Inggris) Tesla's invention of the AND logic gate Diarsipkan 2020-11-12 di Wayback Machine.. Twenty First Century Books, Breckenridge, CO.
(Inggris) Wireless Remote Control and the Electronic Computer Logic logic elements Diarsipkan 2011-08-05 di Wayback Machine.
(Inggris) LEGO Logic Gates Diarsipkan 2007-04-20 di Wayback Machine.. goldfish.org.uk, 2005.

Pustaka

Awschalom, D., D. Loss, and N. Samarth, Semiconductor Spintronics and Quantum Computation (2002), Springer-Verlag, Berlin, Germany.
Bostock, Geoff, Programmable Logic Devices. Technology and Applications (1988), McGraw-Hill, New York, NY.
Brown, Stephen D. et al., Field-Programmable Gate Arrays (1992), Kluwer Academic Publishers, Boston, MA.

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