I want to build a programmer which runs of a 6V or 9V supply and so Im going
to use a DC/DC convertor to provide the programming voltage.
Does anyone know what current is drawn at 14V by the PIC in programming mode
Thanks for the help.
> : Jon Baker <MARZIPAN.DEMON.CO.UK> jon
> Hi all.
> I want to build a programmer which runs of a 6V or 9V supply and so Im
> to use a DC/DC convertor to provide the programming voltage.
> Does anyone know what current is drawn at 14V by the PIC in programming
> (on average)
You can read the datasheet! According to DS programmer VPP current may be
up to 50mA,
but in the reality - 5-100mA (in ave.) its enough.
Alex Torres, Kharkov, Ukraine (exUSSR)
Jon Baker <MITVMA.MIT.EDU> wrote: PICLIST
> Does anyone know what current is drawn at 14V by the PIC in
> programming mode (on average)
If you're building a 16C84/F84 programmer, essentially zero current
is drawn from the Vpp supply; the high voltage is just a switch that
puts the PIC into programming mode.
The EPROM-based PICs, on the other hand, DO draw some current from
the Vpp line... The programming specs say that the curent should be
limited to 50 mA, but I think the chips really only draw 10-25 mA.
=== Andrew Warren - ix.netcom.comfastfwd
=== Fast Forward Engineering - Vista, California
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