Diego,

I'm going by the ref manual for the 16F872.  I just downloaded/checked
the doc you mentioned.  It covers the 16F87XA (rather than 16F87X)
and also does not cover the 872.

I haven't read this doc cause I'm not using those chips -- how does this
'A' version of the chip differ from its non-'A' counterparts?

Thanks,
-Neil.



----- Original Message -----
From: "Diego Sierra" <dsierra@TELEFONICA.NET>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Saturday, March 09, 2002 5:43 PM
Subject: Re: [PIC]: MCLR?


> Hi!
>
> > > On a 16F872, and 16F84 for that matter, I've gathered
> > > that MCLR should be connected to Vdd during normal
>
> From Microchip doc DS39582A, page 146 (16F87XA manual):
>
> "The behavior of the ESD protection on the MCLR pin differs from
> previous devices on this family. Voltages applied to the pin that exceed
> its specification can result in both RESETS and current consumption
> outside device specification during RESET event. For this reason,
> Microchip recommends that the MCLR pin no longer be tied directly to
> Vdd. The use of a RC network ... is suggested"
>
> The figure of the RC network is a resistor to Vdd, >= 1K, and a cap to
> Vss of 0.1uF (not critical it says).
>
> Cheers,
> Diego.
>
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>
>

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