PIC with 1MB memory

[Don Mario]

Hi all

I have a project with PIC but I need EEPROM memory as large as 1MB for data storage ! What mem can I use ? SD card,CF card ?
I need your advice !

Thank you very munch

Don Mario

P.S. scuse my bad english

[NavMicroSystems]

If you just need 1MBit of EEPROM space two 24xx512 EEPROMS would do the job.

see: DataSheet (http://ww1.microchip.com/downloads/en/DeviceDoc/21754E.pdf)

They are easy to use with PBP.

What kind of data are you planing to store in EEPROM?
can it be "compressed" in some way?

regards:

Ralph

[Don Mario]

Thanks but I need 1MB of EEPROM memory !

Don Mario

[mister_e]

Some will use smartcard stuff but, IMO it's easier/cheaper to use a stack of some i2c EEPROM like 24C512


OR :
1X AT24C1024 (I2C)
1X AT25P1024 (SPI)

[Bruce]

Hi Don,

Have a look at the Atmel AT45D0xx DataFlash at: http://www.atmel.com/dyn/products/devices.asp?family_id=616

Here's an article on using them with a BASIC Stamp you might find useful to help get started. http://www.emesystems.com/BS2flash.htm

[Don Mario]

Thanks BRUCE

AT45DB081 is just fine for me ! Low cost,high density !
Now, I try to learn read/write page mode !
I need to write, time to time,8 byte and this memory want entire page write at a time !


Thanks again

Don Mario