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use of EEPROM

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louislu

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hello...i need a external storage device to store some data and currently intend to use M24C64 model EEPROM.but i don know to how to implement this device...and how to read and write to it.this EEPROM is used to store time and date for a door system.anyone know where got related info regarding the usage of this EEPROM and sample.need help urgently....thank in advance..
 
your answer all depends on the micro that you are going to use with it.

in general, your program needs to write to the memory location, keep track of where it has written, and read from the memory.

You will need chip select lines and/or address decoding (e.g. 74ls373)
 
To stlouisembedded, regarding the data sheet u found is belong to microchip product.the EEPROM i using is product of ST.r they the same?anyway...thanks lot
 
louislu said:
To stlouisembedded, regarding the data sheet u found is belong to microchip product.the EEPROM i using is product of ST.r they the same?anyway...thanks lot

Yes, EEPROM's are pretty standard, there's no problem changing one make of 24C64 for another.

If you're using a PIC, I have a tutorial about I2C.
 
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