gnupic: fate of 18F0x0 chips?
Subject:
Re: fate of 18F0x0 chips?
From:
d ####@####.####
Date:
20 Mar 2002 23:52:45 -0000
Message-Id: <AF6B5C83-3C5C-11D6-AB9E-000502B6050F@mac.com>
The 18F0x0 8-pin chips were killed.
They're focus was diverted to adding flash to the 12C6xx
The new 8-pin device is the 12F675 and should begin sampling in
April/May.
On Wednesday, March 20, 2002, at 12:10 PM, Mark J. Dulcey wrote:
> John Rehwinkel wrote:
>
>
>> That reminds me -- Microchip had announced a line of 40MHz 8-pin flash
>> micros early last year:
>> PIC18F010
>> PIC18F012
>> PIC18F020
>> PIC18F022
>> The said they'd be about a buck-and-a-half apiece, and would be
>> sampling in June with quantity production in August. I downloaded
>> the reference manuals and eagerly anticipated getting my hands on
>> some. Toward the end of the year, I hadn't heard anything, and
>> emailing Microchip (the "read by a human" address) yielded nothing.
>> Now references to these parts seem to have vanished from the website.
>> I figure they were never brought to market, but I still wonder why.
>
> A site search found only two mentions: in the "Automotive E-Pack" and
> the "Flash E-Pack". But those were just dead links to the info pages on
> the chips.
>
> As for the cause of the disappearance, it beats me; I would have liked
> to use them. Perhaps their big customers didn't show any interest.
> Those little 8-pin guys go into stuff that isn't going to get
> reprogrammed in the field, which is the only reason any of the big boys
> would ever buy flash-based PICs. (If you're only programming them once,
> OTP chips are fine, and they probably have them programmed for them by
> Microchip or some other outside company anyway.) They don't care about
> the nuisance of erasing and programming the EPROM-based chips; unlike
> us hobbyists, they have the budget for that hardware.
>
>> Also: are there any flash-based chips with internal oscillators?
>
> Yes: the 16F627 and 16F628, which I mentioned in the previous message.
> That's how you get 16 I/O pins from an 18-pin device; you can reprogram
> the pins normally used for the crystal or external clock to be
> general-purpose I/O pins. And at under $2.50 each, they're cheap. Not
> as small as the 18F0xx series would have been, though.
>
>
>
>
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