Re: Looking for large serial EEPROM or FLASH like Atmel's DataFlash

From: Jim Granville (no.spam_at_designtools.co.nz)
Date: 06/24/04 

Date: Thu, 24 Jun 2004 15:18:44 +1200

Tom wrote:
> I'm looking for a large serial EEPROM or FLASH chip that comes in a small
> package and uses a serial interface. I need something in the range of 1024
> kbit - 2048 kbit in an 8-SOIC or smaller package, and it needs to be as cheap
> as possible. :)
>
> So far I've only found I2C EEPROMs like the 24C512, but these only seem to go
> up to 512 kbit or 1024 kbit, and they also get very expensive when you go up
> to that size. Atmel has their "DataFlash" series which are fairly inexpensive,
> and they fit my needs in terms of package size and capacity, but the stupid
> 264-byte page size and lack of linear addressing makes them almost unusable in
> my application. I just don't have enough CPU cycles left over to divide by 264
> every time I need to seek to a new location.
>
> Does anyone know of any other chips out there that have the same cost-per-bit
> as the DataFlash and also have the same ease-of-use as the 24Cxx series?
>
> --Tom.

You want the 25F serial FLASH devices, see
http://www.sst.com/news/?id=244

and also
http://www.atmel.com/dyn/products/datasheets.asp?family_id=668
-jg

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