Check out the TAPR PIC-SIG, there is already some code to do
what you want using the Ramtrom Ferro-Ram chips.

See http://www.tapr.org

Jeff


Grant Forest wrote:

> Am using a 16F84 to retransmit a radio packet,
> and need extra RAM for the packet (512 Bytes)
> The 1M R/W limit on the 24LC21 will be reached within 100 days.
>
> So has anyone used any I2C 1K+  serial Rams (where of course there is no
> limit)
>
> Tks for the help I got regarding my last 16F877 question
> Found a nice bit of 16F877 code at
> http://homepages.nildram.co.uk/~starbug/epepic.htm
> under 8 chl datalogger Aug99
>
> Grant Forest