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Author Topic: AT93C66 3wire EEPROM help requested  (Read 2289 times)
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Has anyone ever used the 93C66 or any of the other 93C series of EEPROMs with the MEGA series ARDUINO systems?  Is it possible to interface these memory chips to the SPI port?  I am kinda unclear on this SPI,  2wire, 3wire stuff.. any help, documentation, schematics, projects etc. that have done this would be helpful

Thanks

Dillon
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Do you have a link to the datasheet?

-- update --
-http://www.datasheetcatalog.org/datasheet/atmel/doc0172.pdf

you can have I2C (the one with SCL and SDA)

otherwise I think you should use SPI.  The four pins { CS, SK, DI, DO } look like the 4 SPI pins { SS, SCK, MOSI, MISO }

Please read - http://www.arduino.cc/playground/Code/Spi - for details.



« Last Edit: March 28, 2011, 07:10:07 am by robtillaart » Logged

Rob Tillaart

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Thanks  that helps a lot.. now I know what kind of device to search for

D
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