AVR-Chat

You put it in a funny way, but sure it's better :-)

It's (almost) like when people touch 400KV power lines and nothing bad happens because they are insulated from ground (it's actually a little more complicated but not far).

Cat

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> To: AVR-Chat@yahoogroups.com
> From: steve@terrafirma.us
> Date: Fri, 24 Aug 2012 07:32:36 -0700
> Subject: RE: [AVR-Chat] voltage on an AVR pin when powered off
>
> So, what if GND as well as Vcc to the chip are both turned off, i.e., all uC
> power pins are isolated, but now from some other source a voltage is applied
> to an I/O pin (but is floating with respect to the uC)? Would that in and
> of itself be better than if GND were still connected? Steve
>
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>