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28 lines
798 B
Markdown
28 lines
798 B
Markdown
---
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title: "sequential-circuits"
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aliases:
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tags:
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- cosc204
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---
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[combinatorial-logic-circuits](notes/combinatorial-logic-circuit.md) always produce the same outputs given the same input. Sequential curcuits on the other hand, produce different outputs depending on past history and the inputs.
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There are two main types of sequential circuit
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- Sychronous
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- this is when changes of state occur in time with a clock cycle
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- changes of input occur between clock pulses
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- state changes occur at the clock pulses
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- Asynchronous
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- state changes occur as the inputs occur
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- event driven
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# Main circuits
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## SR latch
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The set reset latch is the most basic and simple sequential circuit
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