1sourcecomponents
		Ciiva
		clickonstock
		UBM - DataSheets
		IHS - DataSheets360
		eciaauthorized - Electronic Components Industry Association
		Hearst - Electronic Products
		Hearst/Convergent Technologies - Electronic Products
		findchips
		* icplus
		Octopart
		oemsecrets
		partstat
		sourceesb - Penton Electronics

     NOTE: If you know of or offer a free to use web-based part search engine of microcontrollers and are not listed here, email us at
      Support@GruntWareInc.com so we can add that company to this web page.