Marcel van Lieshout wrote :

> I've sampled some 18F458's from MC, but received the Extended
> Temperature version (E/P) instead of the normal Industrial (I/P).
> According to Fig. 27-1 and 27-2 in the datasheet, the E/P part
> is limited to 25Mhz where the I/P part runs up to 40Mhz.
>
> Question:
> Is it safe to assume that running the E/P part at 40Mhz is ok
> as long as the temperature-range of the I/P part is obeyed?
>


Hi.
Check table 27-6 on page 343.
I read that as a "yes" to your question.
It's 40Mhz max between -40 and +85 deg C and 25Mhz max
between +85 and +125 deg C.

Jan-Erik.

PS. If yo need more 18F458-I/P then you can sample,
note that I currently has a couple of those up on
eBay for sale. And I have an additional number
of them that I'd like to get rid of (not yet on
eBay). Contact me directly if you're interested.

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