>Does anyone know of a serial static RAM I could use for additional PIC
>data memory?  I am attempting to alter a pre-existing design that uses
>93C66 EEPROMs, so something with the same pinout and bit-banging scheme
>would be nice, although not absolutely necessary.  I don't care whether
>the SRAM is volatile or not.
>
>The only firm requirements are three pin interface, minimum 64 bytes RAM
>per chip (bigger is better), and no write cycle limitations like those
>associated with EEPROM and FLASH.

Silly thought, I know, but how about a 12c671?  128 bytes of RAM - you may
be able to use all of that if you can get your bit banging i/o to run using
ADRES, FSR, and whatever other registers that might be available.  Only
question is cost and availability.



Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, Alberta, CANADA
(403) 489-3199 voice     (403) 487-6397 fax