Oh wow uh. I sure hope it wasn't a problem that I connected 5V to both Vin and ground of the 2203 simultaneously :blobwhistle:

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@ArrBianca it might be fine, since they'd both be at the same potential, so no current should flow

@SomeEgrets me, a fool, days ago: "wow this chip runs pretty hot huh"

@SomeEgrets @ArrBianca Not necessarily.

If there are pins that lead to ground (i.e. an output signal), and both GND and VCC are at 5V, that means you get current to flow the wrong way. For example, a Zener diode meant to regulate voltage will suddenly have current flowing through it.

What to say about transistors and capacitors and other semiconductors?

@rick_777 @SomeEgrets Today just wasn't a good day for plugging things in the right way.

I also sat a counter IC the wrong way round which ended up reversing Vcc and Ground.

Noticed something was wrong when I smelled something funny, touched the chip, burned my finger a bit.

@ArrBianca @rick_777 we put 240VAC through a parallel port once at work because of an accidental solder bridge

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