On Jan 28, 2008, at 6:57 AM, Spehro Pefhany wrote: > TPIC6C595 will handle 250mA at 30V (100mA if all outputs are on > simultaneously).. it's essentially an HC595 with 8 avalanche-rated > DMOS open-drain transistors (one on each output). I don't see anything in the spec sheet that makes the TPIC6C595 look at all "3.3V friendly": Vccmin = 4.5V, Vih = 0.85*Vcc = 3.8V... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist