Jinx wrote:
>> Jinx,
>>
>> I noticed that you do not have a series resistor into the
>> MCLR pin when using a capacitor like Mchip suggests.
>> Not sure I actually understand their reasoning on this
>> anyway, any comments?
>
>I've never used a series R. My usual is 10k to 5V, 10n ceramic
>to 0V. If the circuit requires a manual reset, then a pushbutton
>switch + 100R is across the 10n
>
>Microchip say in the manual "series resistor of 100 to
>1000 ohms to limit any current flowing into Mclr from
>external capacitor in the event of an Mclr breakdown
>due to ESD or EOS"
>
>I always assumed that if Mclr had broken down that was
>the end of the chip. Yes ? No ? If Mclr has fried, who knows
>what else has
>

Aha - you are still awake down there.

In my opinion - resulting have having experienced/researched
this type of failure, the external capacitor actually CAUSES
the failure by discharging into the /Mclr pin, and Mchp's msg
is really 1984-speak. You can find my critique here:

http://www.oricomtech.com/piclinks.htm#Alert2

- dan
==============

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