Wisp628 and 3V

Started by upand_at_them March 2, 2005

I assume that if I power the Wisp628 with 5V via the 3-pin header I
should be able to program a PIC in a circuit running on 3V. Correct?

Is there a way I can isolate a 3V-only device (it won't tolerate 5V)
from the 5V signals coming from the Wisp?

Mike


> I assume that if I power the Wisp628 with 5V via the 3-pin header I
> should be able to program a PIC in a circuit running on 3V. Correct?

maybe, but the 5V signals (PGM, PGD) might 'leak' into your 3V supply.

> Is there a way I can isolate a 3V-only device (it won't tolerate 5V)
> from the 5V signals coming from the Wisp?

one or more relais?

Wouter van Ooijen

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