Please remember to put the [PIC]: topic in the subject next time. I added it manually to this reply to avoid getting a notice from a list admin. >> Im a begginer and I have been reading and looking for info about PICs but havent found some info about PIC17C44. Is the connection with serial EEPROMS with PIC17C44 possible ? what do i need ? wich families of serial eeproms can I use with this micro ? << The 17C44 only has a single USART, and no IIC or SPI. Usually serial EEPROMs are hooked up via IIC or SPI. It could still be possible to use the USART in some way, but I would look to doing IIC protocol in software. It only requires two pins, and there are a number of EEPROMs available that talk IIC. The PIC only needs to act as a master, which isn't that hard to write yourself. In fact most of the 16C PICs only have slave support built into the IIC module. You end up doing the master function in software anyway. I've done this a number of times. Good luck. ***************************************************************** Olin Lathrop, embedded systems consultant in Devens Massachusetts (978) 772-3129, olin@cognivis.com, http://www.cognivis.com -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu