Hello Jesse,

It appears that there is hope...

Please note that it appears that many PIC18F MCUs can  be bulk erased with a Vdd voltage less  than 4.5 volts (with respect to Vss).

If still interested in this topic, take a look at this thread I posted back in August 2005 at the Microchip Forums for all the details:


ICSP Bulk Erase Vdd "Low"down: Falling trend? 

http://forum.microchip.com/tm.asp?m=108526 


I'm wondering if you are able to upgrade to the PIC18F2321 (after proper testing and qualification of course)? (I'm not sure if it is available yet so this post is sort of useless to you). I'd just thought I'd try to help out though...

Best regards,

Ken Pergola

P.S. I'm posting this through the Nabble interface so my apologies if this post is messed up or the link is broken.
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