>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 11 August 2005 17:04
>To: Pic List
>Subject: [PIC] ICSP at 3.3V?
>
>
>I'm working on a project using the 18LF6520 running at 3.3V. 
>As I read the datasheet, we can do ICSP programming at this 
>voltage (with high voltage Vpp), but it does not appear we can 
>erase the chip with this voltage (datasheet page 319). Does it 
>look like I'm reading this correctly?
>
>THANKS!
>
>Harold


Correct, you can program the whole device at 3.3v, but you cannot perform a bulk erase which means you only get one shot at setting the fuses.  The program/EEPROM memory can be erased for re-programming but it takes longer.

Regards

Mike

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