At 11:32 AM 8/29/96, Bradley, Larry wrote:
> ----------
>From:  owner-piclist[SMTP:owner-piclist@MITVMA.MIT.EDU]
>Sent:  Thursday, August 29, 1996 12:30 AM
>To:  Multiple recipients of list PICLIST
>Subject:  Re: Mass Storage
>
>>         I'm using a PIC16c84, and i'm going to need more memory than it
>> offers, I was considering either a floppy drive, zip drive, or
>something
>> to that extent, the simpler the better, any ideas?
>
>Uh, how much more memory?  For under $1/Kbyte, you can add serial EEPROM
>chips quite easily.  (snip)
>
> -----------------------------
>Problem with EEPROM is 10*6 write cycles typically (for Microchip parts).
>It depends on how often one needs to write. Every 10 minutes would be no
>problem. But every second could be.
>
>What other storage options are open to PIC users for extra memory?
>Philips has a 256 byte static ram chip with I2C.

the PCF8570 part that you mentioned is not a common part, i.e. currently
there's no stock in US. Well that's what my Philip's rep told me this
morning after I requested samples a couple days ago. She said that it was
going to take several weeks to get some parts to me. Fortunately I can
tolerate the time.

craig