Has anyone had any experience with Ramtron FM24C512-G Nonvolatile RAM.
This is supposted to be a random access nonvolital memory chip with ic2.
The device has 64,000 bytes of memory with 10 Billion Read/Writes.
Would sure like to use with swordfish.
Anyone had any experience with Ramtron FRAM
Moderators: David Barker, Jerry Messina
Re: Anyone had any experience with Ramtron FRAM
I have used the 64 K-bit version with Proton+ (so I can't supply code), and was happy with it, for the most part. It's easier to use than regular eeprom, since there are no page writes or delays. OTOH, as has been discussed, the size is severely limiting and price is very high. I've since switched to a 512Kb eeprom, because Ramtron didn't offer a 512kb in serial 3.3v. Since I started out with the FRAM, the migration took some time to figure out the page handling and management--which was mandatory with only a few bytes written per day. I got an 8x larger eeprom at less than half the price.jerryf wrote:Has anyone had any experience with Ramtron FM24C512-G Nonvolatile RAM.
This is supposted to be a random access nonvolital memory chip with ic2.
The device has 64,000 bytes of memory with 10 Billion Read/Writes.
Would sure like to use with swordfish.
In summary: FRAM = smaller memory sizes, pricier, higher power requirements (Vin and Iq) ... but all with faster "instant" writes and easier code.
For low volume designs that can deal with the power requirements and size restrictions, I'd use them again.
You could use one these - real pricey, about $200 with a DIP adapter:
http://search.digikey.com/scripts/DkSea ... me=A339-ND
Or this (you will still have to solder the chip to it), for about $6:
http://search.digikey.com/scripts/DkSea ... me=A724-ND
http://search.digikey.com/scripts/DkSea ... me=A339-ND
Or this (you will still have to solder the chip to it), for about $6:
http://search.digikey.com/scripts/DkSea ... me=A724-ND