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'[PIC]: 18F with CAN at Digi-Key'
2002\09\12@113843 by Hazelwood Lyle

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Just an FYI, Digi-Key shows a limited
quantity of 18F458 in stock.

These appear to be the first of the
CAN equipped 18F chips to appear
so far through regular distribution channels.

Lyle Hazelwood

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2002\09\12@120817 by Claudio Tagliola

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Hi all,


http://asp.microchip.com/distisearch/distijump.asp?partnumber=PIC18F448-I/L

Shows stock at DigiKey, Future Electronics and Arrow

http://asp.microchip.com/distisearch/distijump.asp?partnumber=PIC18F458-I/L

Shows stock at Future Electronics and DigiKey.

The rate at which this is going, I guess next week they all have them.

DigiKey is screaming expensive over here in Europe. Better go for Future.


Regards,

Claudio

-----Oorspronkelijk bericht-----
Van: pic microcontroller discussion list
[.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU]Namens Hazelwood Lyle
Verzonden: donderdag 12 september 2002 17:38
Aan: PICLISTspamKILLspamMITVMA.MIT.EDU
Onderwerp: [PIC]: 18F with CAN at Digi-Key


Just an FYI, Digi-Key shows a limited
quantity of 18F458 in stock.

These appear to be the first of the
CAN equipped 18F chips to appear
so far through regular
distribution channels.

Lyle Hazelwood

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2002\09\12@191806 by M. Adam Davis

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I recall when 16f877 chips cost 10-12 dollars each [US].

These 18f458 with can are not cheap, but they certianly aren't
expensive...  I've always wondered why the DIP packages are cheaper at
digikey than the other smaller packages...

-Adam

Hazelwood Lyle wrote:

{Quote hidden}

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2002\09\12@193440 by Spehro Pefhany

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At 07:16 PM 9/12/02 -0400, you wrote:
>I recall when 16f877 chips cost 10-12 dollars each [US].
>
>These 18f458 with can are not cheap, but they certianly aren't
>expensive...  I've always wondered why the DIP packages are cheaper at
>digikey than the other smaller packages...

It's nice to see some stock in the PQFP right off. I suspect the
cost has to do with handling. I've gotten several small lots of
QFP chips that are about 98% packaging. It's not just Digikey is
it? Pioneer's pricing is similar. I think it's Microchip policy for
low-quantity. Many other makers are going SMT-only (eg. MSP430F)

The ancient bulky DIP package is mostly useful for prototyping,
hobbyists and very small quantity production, not for products to be
made in serious volume.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
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2002\09\12@205906 by M. Adam Davis

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Spehro Pefhany wrote:

> At 07:16 PM 9/12/02 -0400, you wrote:
>
>> I recall when 16f877 chips cost 10-12 dollars each [US].
>>
>> These 18f458 with can are not cheap, but they certianly aren't
>> expensive...  I've always wondered why the DIP packages are cheaper at
>> digikey than the other smaller packages...
>
>
> It's nice to see some stock in the PQFP right off. I suspect the
> cost has to do with handling. I've gotten several small lots of
> QFP chips that are about 98% packaging. It's not just Digikey is
> it? Pioneer's pricing is similar. I think it's Microchip policy for
> low-quantity. Many other makers are going SMT-only (eg. MSP430F)
>
> The ancient bulky DIP package is mostly useful for prototyping,
> hobbyists and very small quantity production, not for products to be
> made in serious volume.


Exactly.  I would have though that smaller packages, due to the
economies of scale, would be cheaper - less material to make, less
storage space, specifically designed for machine handling, etc.

But then again dip packaging equipment could be cheap since they are
going out of style.  One of the reasons Microchip is so inexpensive is
they use older fab equipment.

-Adam

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