On 23/09/10 22:05, Olin Lathrop wrote:
> Robin Abbott wrote:
>   =20
>> I am surprised by the blowing of the chip on 12V applied to MCLR
>>     =20
> You shouldn't be.  This is very clearly spelled out in the datasheet righ=
t
> where you'd look for it.  The third line down under Absolute Maximum Rati=
ngs
> specifies -300mV to 6V as the range.  Since 12V>  6V, there should be no
> surprise that it goes poof at 12V.
>
>   =20
>> as all inputs are protected by static protection diodes which can
>> usually handle several mA which is below the current limit of most
>> programmers.
>>     =20
> So let me get this straight.  You guess how the circuitry is implemented,
> and based on that guess, you decide you know better than the PIC designer=
s
> and that the absolute maximum limits published in the datasheet are wrong=
!!?
> I won't bother explain then what is wrong with your guess since I expect =
to
> have even less credibility than the datasheet.
>
> Or if I got this wrong I apologize, but then please do show us a copy of
> your personal exemption certificate for being allowed to violate the laws=
 of
> physics.
>   =20
Keep in mind you aren't allowed to express surprise here when IC's you=20
haven't done detailed research on behave differently to what you have=20
experienced in the past and extrapolated based on a plausible model.
Not knowing something and being curious as to how things works makes you=20
an idiot.

Oh wait no, that's just Olin being a troll, my bad.
--=20
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