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| nr | name | cat | description | manufacturer | 
|---|---|---|---|---|
| 5 | 5xxdemo | www.icst.com/pdf/5xxdemo.pdf | ICS* | |
| 5 | AY-5-1013 | UART: Universal Asynchronous Receiver-Transmitter, pinout | ||
| 5 | MF5 | filter | Universal switched cap. audio filter | order from Barend | 
| 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 
| www.chipdocs.com/ | Very good! | 
| www.icmaster.com/ | Registration is needed in advance. Will be closed spring 2002. | 
| www.questlink.com/ | Registration is needed before you can download datasheets. Chips can sometimes be ordered via Arrow/Avnet. | 
| www.elisnet.or.jp/ | In Japanese only. | 
| www.findchips.com/ | Do a search at 20+ distributors at once! | 
| www.netcomponents.com/ | Do a search for scarce chips at many brokers at once! | 
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