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