Interfacing AT91SAM9260 with cheap SRAM or SRAM?

I was hoping to only spend $1 to $2 for 32k SRAM (or SDRAM) to
interface with the AT91SAM9260. Looking at the schematic for the
AT91SAM9260 evaluation board, I can see it uses two Micron
MT48LC16M16A2 32KB SDRAM chips. Looking on digikey.com and avnet.com,
this chip is about $7 in quantities of 10,000, which is much too
expensive for the project.

Does anyone think I will be able to find 32KB SRAM (or SDRAM)  that is
compatible with the AT91SAM9260, and that is around $2?  I am pretty
newbie-ish whenit comes to SRAM/SDRAM so this question may come off as
very stupid. Thanks - mark

Mark wrote:

> I was hoping to only spend $1 to $2 for 32k SRAM (or SDRAM) to
> interface with the AT91SAM9260. Looking at the schematic for the
> AT91SAM9260 evaluation board, I can see it uses two Micron
> MT48LC16M16A2 32KB SDRAM chips. Looking on digikey.com and avnet.com,
> this chip is about $7 in quantities of 10,000, which is much too
> expensive for the project.

The Micron chips you referred to are 32MB, not kB.

How much do you exactly need ? The MT48LC4M16A2P sells for $2.38 at
digikey in 10,000 quantities, and is 8MB.

If you need kilobytes, you'll need an SRAM, since the SDRAMs aren't
that small.

Arlet wrote:
> Mark wrote:
>
> > I was hoping to only spend $1 to $2 for 32k SRAM (or SDRAM) to
> > interface with the AT91SAM9260. Looking at the schematic for the
> > AT91SAM9260 evaluation board, I can see it uses two Micron
> > MT48LC16M16A2 32KB SDRAM chips. Looking on digikey.com and avnet.com,
> > this chip is about $7 in quantities of 10,000, which is much too
> > expensive for the project.
>
> The Micron chips you referred to are 32MB, not kB.
>
> How much do you exactly need ? The MT48LC4M16A2P sells for $2.38 at
> digikey in 10,000 quantities, and is 8MB.
>
> If you need kilobytes, you'll need an SRAM, since the SDRAMs aren't
> that small.


doh! thanks for your help! cant believe i foobared that, but i am happy
anyway :)