Zero frequency <-> No oscillation <-> DC

If you're talking about for a PIC then DC would be the same as applying
+5V and ground to the crystal pins; this wouldn't accomplish anything.
As for other "manufactures," some devices operate at DC levels
(sometimes oscilloscopes, etc.) while other things have higher minimum
frequencies (although they can still be pretty low, i.e. 20Hz for
speakers).

Regards,
Adam Smith

> -----Original Message-----
> From: adam-request@viratech.com [mailto:adam-request@viratech.com] On
> Behalf Of Lawrence Lile
> Sent: Friday, June 14, 2002 11:55 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: Will an unprogrammed chip oscillate?
>
> Is Zero frequency usually considered to be outside the manufacturer's
> specifications?
>
> --Lawrence
>
> ----- Original Message -----
> From: "Brendan Moran" <annirak@BIGFOOT.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Friday, June 14, 2002 11:42 AM
> Subject: Re: [PIC]: Will an unprogrammed chip oscillate?
>
>
> > Quite right.  I misread that I guess
> >
> > "The PIC16F87X oscillator design requires the use of a parallel
> > cut crystal. Use of a series cut crystal may give a
> > frequency out of the crystal manufacturers specifications."
> >
> > Regards,
> >
> > --Brendan
> >
> >
> > ----- Original Message -----
> > From: "Pic Dude" <picdude@AVN-TECH.COM>
> > To: <PICLIST@mitvma.mit.edu>
> > Sent: Friday, June 14, 2002 9:07 AM
> > Subject: Re: [PIC]: Will an unprogrammed chip oscillate?
> >
> >
> > > Isn't it the other way? -- that the Microchip docs state that
> > > a PARALLEL-cut crystal is required as a series cut may cause
> > > incorrect timing?
> > >
> > > Cheers,
> > > -Neil.
> > >
> > >
> > >
> > >
> > > -----Original Message-----
> > > From:
> > > Sent: Friday, June 14, 2002 9:47 AM
> > > Subject: Re: [PIC]: Will an unprogrammed chip oscillate?
> > >
> > >
> > > Series cut .. Parallel cut - How does one figure out which applies
to
> the
> > > crystal in question. I just looked at EVERY crystal in Digikey,
and
> NONE
> > > (i.e. diddlysquat, Nada, Nichts, Nyet, Zip, Zilcho) specify
whether
> the
> > > crystal is parallel or serial cut. Now there are a few that allude
to
> > > "When run in parallel mode.." "Effective series resistance" And
one
> has
> a
> > > whole paragraph of rubber language which basically says "Your
Mileage
> May
> > > Vary" when run in parallel or series mode, but none of them just
come
> > right
> > > out and say one or the other.
> > > I guess the correct method is to use a CRYSTAL ball. <Groan>
> > > --Lawrence
> > >
> > > ----- Original Message -----
> > > From: "Brendan Moran" <annirak@BIGFOOT.COM>
> > > To: <PICLIST@MITVMA.MIT.EDU>
> > > Sent: Thursday, June 13, 2002 5:33 PM
> > > Subject: Re: [PIC]: Will an unprogrammed chip oscillate?
> > >
> > > --
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> > >
> > >
> >
> > --
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> >
> >
>
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