David,
TRY PCF8570 256 x 8 Static RAM made by Phillips which interfaces to the I2C
bus. There are larger than 256 bytes but I don't know who makes them.
Regards,
Mark

At 22:47 29/05/97 -0624, you wrote:
>I am considering a data logging project that would sample a number of sensors
>and record the data for later playback into a PC host for analysis. Minimally
>it would need to record one or two hundred bytes per second for several
>minutes, ideally quite a bit more. So something like 32K to 256K of memory
>would need to be written and then later read back. There is almost no
>requirement to randomly access this memory, just need to write it as data
>comes in and read it for upload to the PC.
>
>I know that I could build a data and address bus out of I/O pins, but that
>seems like overkill and would probably use too many pins anyhow.
>
>I have seen serial EEPROMS and they would almost be perfect except for the
>slow programing and power consumption. Is there a serial SRAM available?
>or a simple way to use commodity SRAM chips?
>
>Any other thoughts?
>
>-dg
>
>David Gould           dg@illustra.com            510.869.6383 or 510.305.9468
>Informix Software (formerly Illustra)  1111 Broadway #2000  Oakland, CA 94607
> - I realize now that irony has no place in business communications.
>
>
----------------------------------------------------------------------
Mark Hitchings
R&D Engineer
Intelligent Control Systems Laboratory
School of Microelectronic Engineering
Griffith University, Nathan, Qld. 4111
ph: +61 7 3875 5067
fax: +61 7 3875 5384
email: mhitchin@me.gu.edu.au
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