Does VPP really has to be 13V?

[Melanie]

The Microchip specification for VHHR is Vdd+3.5v as minimum, with 13.5v as maximum BUT it varies from PIC family to PIC family. Some have a 10v minimum and 12v maximum. You must refer to the Programming Specifications for the PICs you want to use... also check here...

http://www.microchip.com/stellent/id...GE&nodeId=1407

[Futterama]

Thanks for the link :-)

So the basic answer to my question is "yes, but it depends on the specific PIC", right?

I only want to program a series of specific PIC's, so I could check out all the programming specifications for them, and see if they have the same spec as 16F628 and 16F88.

Regards,
Futterama