http://www.alldatasheet.com/ (tavsiyem)
http://www.alldatasheet.net/
http://www.alldatasheet.co.kr/
http://www.xs4all.nl/~ganswijk/chipdir/
http://www.microelectr.com.hk/datasheet.asp
http://www.chipcatalog.com/
http://www.chipdocs.com/
http://www.epanorama.net/
http://www.icmaster.com/
http://www.nteinc.com/
