> Easy. From spec sheet, .7v at 3mA, from Ohm's Law .7/.003 = 233 Ohms. That is either a minimum guaranteed current at that voltage or the maximum guaranteed voltage at that current (the exact reference wasn't supplied, so I didn't chase down the particular spec sheet line). Nothing says that the current at 700mV couldn't be considerably higher. ***************************************************************** Embed Inc, embedded system specialists in Littleton Massachusetts (978) 742-9014, http://www.embedinc.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body