use of EEPROM

L

louislu

New Member

• Apr 5, 2004

• #1

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..

 

R

Russlk

New Member

• Apr 5, 2004

• #2

Have you studied the data sheet? What don't you understand?

 

S

stlouisembedded

New Member

• Apr 5, 2004

• #3

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)

 

S

stlouisembedded

New Member

• Apr 5, 2004

• #4

https://www.microchip.com/1010/pline/memory/memdvice/parallel/misc/24c64/

try using google.com

 

L

louislu

New Member

• Apr 5, 2004

• #5

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

 

Nigel Goodwin

Super Moderator

Most Helpful Member

• Apr 5, 2004

• #6

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

Click to expand...

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.