gnupic: Re: [gnupic] running 18f252 at 3.3Volts
Subject:
Re: [gnupic] running 18f252 at 3.3Volts
From:
"octaloctal" ####@####.####
Date:
1 Mar 2006 15:06:06 +0000
Message-Id: <008a01c63d41$a8a48280$3c01000a@sidexa.blr>
Hi George,
the LF pic parts are pics that can work at LOW AND HIGH voltages. In fact
the picxxLFxx serie works exactely like the PicxxFxx parts but the range of
DC is much larger.
When the F serie works only in about 5.5> Vdd > 4.5 the LF series works
in the range (approx) 6.2 > Vdd > 2.8volts.
So you can burn your LF252 pic at 5 volts without any problem either for
COnfig Word or for STD Code.
Best regards.
A.LAZREG
----- Original Message -----
From: "George M. Gallant, Jr." ####@####.####
To: ####@####.####
Sent: Wednesday, March 01, 2006 3:31 PM
Subject: RE: [gnupic] running 18f252 at 3.3Volts
> Thanks. Will get some LF parts. And then for what its worth, the 18f252
> is running at 3.3V.
> My flash burner has problems writing the config words at 3.3V. Wrote the
> config using 5V
> and burn instructions at 3.3V. Some days luck is with you.
>
> George
>
> On Wed, 2006-03-01 at 08:31 +0100, octal works wrote:
>
>> Hi,
>> The Pic18F252 do not work correctly at 3.3volts. You have to change it by
>> a
>> pic18LF252 ( the picxxLFxx serie is a Low Power serie).
>> Second it depends upon your board. If your board has been developed with
>> 5
>> volts in mind (regulators and Zener Diodes) you will never see it working
>> correctly.
>>
>> Sincerely
>>
>>
>> -----Message d'origine-----
>> De : George M. Gallant, Jr. ####@####.####
>> Envoyé : mercredi 1 mars 2006 04:46
>> À : ####@####.####
>> Objet : [gnupic] running 18f252 at 3.3Volts
>>
>> I have just populated a small board with a pic18252. The board has been
>> used
>> before at 5V. Is there anything special I need to do?
>>
>> Clock is 10MHz resonator. Internal x4. It is not oscillating. Reset is
>> at 3 volts.
>>
>> Programmer is operating at 5V.
>>
>> Thanks,
>> George
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: ####@####.####
>> For additional commands, e-mail: ####@####.####
>>
>
