Post by thread:I2C RAM (not EEPROM)

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 homepages.nildram.co.uk/~starbug/epepic.htm under 8 chl datalogger Aug99 Grant Forest

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: {Quote hidden}> 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 > homepages.nildram.co.uk/~starbug/epepic.htm > under 8 chl datalogger Aug99 > > Grant Forest

At 02:36 AM 3/13/00 -0500, Jeff King wrote: >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 > I'm basically doing the same sort of thing (buffering an RF packet). The Ramtron's look nice, and I'm seeing if there is any reason I couldn't use them. I haven't worked out a longevity model at 10Giga writes/reads, because I don't have my usage nailed down yet. Future has the 2KByte version in stock for $1.80 a piece... {Quote hidden}> >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 >> homepages.nildram.co.uk/~starbug/epepic.htm >> under 8 chl datalogger Aug99 >> >> Grant Forest Erik Reikes Senior Software Engineer Xsilogy, Inc. spam_OUTereikesTakeThisOuTxsilogy.com ph : (858) 535-5113 fax : (858) 535-5163 cell : (858) 663-1206