The ATmega8U2 supports it using LUFA: http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=3DATMEGA8U= 2-AU-ND http://www.fourwalledcubicle.com/LUFA.php $4 ea for < 25. On Fri, Jan 28, 2011 at 10:52 AM, YES NOPE9 wrote: > I have probably asked this question before ..... > I am hoping for a more favourable answer now. > > I want to use the lowest end PIC that has a USB interface and firmware to= support the serial port class. =A0( Suggestions of micros from other vendo= rs such as NXP, TI, etc. are acceptable. ) > My intention is to have a small PCB that looks like a USB virtual serial = port and has a small amount of coding space left to do something with the s= erial data flowing back and forth. =A0USB 1.1 is okay since my data rate ca= n be as low as 9600 baud. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .