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content/notes/sequential-circuits.md
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@ -23,5 +23,19 @@ There are two main types of sequential circuit
## SR latch
The set reset latch is the most basic and simple sequential circuit
![sr latch](https://i.imgur.com/mhXd77i.png)
![simple sr latch with NOR gate](https://i.imgur.com/ay6uk33.png)
The ouput is remembered and changed basic on previous output.
- When S (set) is pulsed Q is one and Q̄ is zero
- When R (reset) is pulsed Q is set to zero and Q̄ is set to one
## D Flip FLop
![D flip flop with NAND gates](https://i.imgur.com/XVnK2s6.png)
The D flip flop is basically an SR connected to a clock. Instead
[circuit simulation](https://tinyurl.com/2cafc57y)
## Simple video demonstration of some sequential circuits
<iframe width="560" height="315" src="https://www.youtube.com/embed/I0-izyq6q5s?start=84" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>