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126 lines
1.3 KiB
Markdown
126 lines
1.3 KiB
Markdown
---
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Status: Ready
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Created by: Trude EH
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tags:
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- computer-science
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- electronics
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- notes
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author: TrudeEH
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draft: false
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searchHidden: false
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showToc: true
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title: Logic Gates
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---
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## NOT
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Invert the input.
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![[image42.png]]
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### Truth Table
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|**Input**|**Output**|
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|---|---|
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|0|1|
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|1|0|
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## AND
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Output `1` only when both inputs are `1`.
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![[image43.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|0|
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|0|1|0|
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|1|0|0|
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|1|1|1|
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## OR
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Output `1` if at least one input is `1`.
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![[image44.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|0|
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|0|1|1|
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|1|0|1|
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|1|1|1|
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## NAND
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An `AND` gate followed by a `NOT` gate.
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![[image45.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|1|
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|0|1|1|
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|1|0|1|
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|1|1|0|
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## NOR
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An `OR` gate followed by a `NOT` gate.
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![[image46.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|1|
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|0|1|0|
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|1|0|0|
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|1|1|0|
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## XOR
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Either input is `1`, exclusively.
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![[image47.png]]
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![[image48.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|0|
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|0|1|1|
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|1|0|1|
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|1|1|0|
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## XNOR
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Inverted `XOR`.
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![[image49.png]]
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### Truth Table
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|A|**B**|**Output**|
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|---|---|---|
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|0|0|1|
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|0|1|0|
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|1|0|0|
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|1|1|1|
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## Implementation Examples
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### NOT
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![[image50.png]]
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### AND
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![[image51.png]]
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![[image52.png]]
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### OR
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![[image53.png]]
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