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The Cyber-Spy.Com Usenet Archive Feeds Directly From The Open And Publicly Available Newsgroup Sci.Electronics.Design This Group And Thousands Of Others Are Available On Most IS NNTP News Servers On Port 119. Cyber-Spy.Com Is NOT Responsible For Any Topic, Opinions Or Content Posted To This Or Any Other Newsgroup. This Web Archive Of The Newsgroup And Posts Are For Informational Purposes Only. From: jmosborne@charter.net (James Osborne) Newsgroups: sci.electronics.design Subject: Re: Interfacing 3.3V chips with 5V bus ?? Date: 16 Jan 2003 16:20:57 -0800 Organization: http://groups.google.com/ Message-ID: <58e6aaf.0301161620.8490eae@posting.google.com> References: <3E2470D5.FFABD94F@hotmail.com> <16a7c3ae.0301150026.5e7886e3@posting.google.com> NNTP-Posting-Host: 24.171.104.171 NNTP-Posting-Date: 17 Jan 2003 00:20:57 GMT You could use a resistor network to drop the voltage. thedatastream@yahoo.com (james) wrote in message news:<16a7c3ae.0301150026.5e7886e3@posting.google.com>... > > I'm sure there are well known design tricks for this purpose. Could > > somebody explain them to me, or point me to a site describing this? > > Download the I-squared-C specification from > http://www.semiconductors.philips.com/buses/i2c. There is a od on > page 43 that shows how to interface 3V3 logic to 5V logic using a > single MOSFET for each data line. > > James Go Back To The Cyber-Spy.Com Usenet Web Archive Index Of The sci.electronics.design Newsgroup |
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