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36 lines
1.1 KiB
Markdown
36 lines
1.1 KiB
Markdown
---
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title: "combinatorial-logic"
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aliases:
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tags:
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- cosc204
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---
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> [!Definition]
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> Combinatorial Logic Circuit is a circuit whose digital outputs are dependent only on its digital inputs
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They can be described using logic expressions and therefore logic gates. We assume the outputs respond immediately^[1]
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- current flows from + to -
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- input to a unit (e.g., LED) is at the + end
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They can be defined:
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- Using a truth table
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- Using [boolean-equations](notes/boolean-equations.md) ($Q\ =\ A+\ B$)
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- Using graphical symbols
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# Adders
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# Parity Generator
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- 3 Bit parity Generator
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- Adds an extra bit to the input data so that the number of ones in the output is always odd
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- Used for error checking
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- [truth table](https://i.imgur.com/KDUiJbN.png)
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- [boolean equation](https://i.imgur.com/mwBpnlO.png)
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- [circuit](https://i.imgur.com/tsgDISC.png)
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# Demux
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# 7 Segment
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-  |