IC datasheets
Datasheets for electronic components are always endangered, since vendors usually don’t keep them online once a product is EOL.
Sources
Manufacturers
Well-known:
- Analog Devices – products
- Infineon – products
- Microchip – products
- NXP – products
- Qualcomm – products
- STMicroelectronics – products
- Texas Instruments
Small:
- 4D Systems – products
- ABLIC – products datasheets
- Alpha – products
- ALPS – products
- Ampleon – products
- Ангстрем – products
- API Delevan
- Diodes – products
- Littelfuse – products
- ON Semiconductor – products
- TT Electronics – products
Distributors
- Arrow
- Avnet – products
- Digi-Key: Links to vendor’s websites
- Farnell: Self-hosted, uses sequential ids: http://www.farnell.com/datasheets/<id>.pdf
- Mouser: Mix between self-hosted datasheets (modified by Mouser, last page appended to PDF) and external links
- Reichelt: Self-hosted
- RS Components: Self-hosted, random(?) hex ids, sometimes no datasheet at all
Vendor lists
Existing archives
- http://www.htmldatasheet.com/
- http://www.alldatasheet.com/
- https://www.datasheetarchive.com/
- http://www.datasheetcatalog.com/