Byron A Jeff wrote:
>
> On Mon, Aug 05, 2002 at 09:10:33AM +1000, Tony Nixon wrote:
> > Kieren Johnstone wrote:
> >
> > > * Turned on +12V, +5V (actually more like 3.6V - 3xAA rechargable), but programming datasheet says this is fine)
> >
> > Not sure I understand this. I thought the data sheet said 5V VDD should
> > be used for programming mode.
>
> Kieren has been reading the programming specification. It is possible to
> program the 16F87X parts all the way down to 2.2V. However there is no
> mechanism to do a bulk erase.

In the latest data sheet (DS30925b) the way I read it, any word
operations in ROM or EEPROM VDD = 2-5.5V, but bulk erase and write
operations for ROM and EEPROM = 4.5-5.5V

--
Best regards

Tony

mICros
http://www.bubblesoftonline.com
mailto:sales@bubblesoftonline.com

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu