An alternative to FM24C04 flash memory

[arunb]

Hi,

Compiler: PCM 3.1619
Device: 16F628/16F877

Currently I am using 24LC256 as an external memory. I find that this is slow for my application (around 5ms for a byte).

I find the FM24C04 very good for my application, but this is not easily available here in India. I would like to know if there is any alternative to the FM 24C04. Please note that speed and capacity (about 256 Kbit) is important.

Note: My application reads and writes only in single bytes

thanks
arunb

[Ttelmah]

On the 'non volatile' technologies, you have three choices. EEPROM - will be slow, CMOS SRAM - will need a battery backup supply & FRAM.
Now you talk about the FM24C04, but presumably would need the FM24C256...
Have you tried the Indian sales offices for these products?. There are two companies handling this area, 'E-Smart', and 'Excel Eltech'. The FRAM system, is also licensed to a couple of other manufacturers (Toshiba do produce FRAM products,but generally only in larger assemblies). The simplest solution otherwise, will be to add a battery, and use SRAM.

Best Wishes

[asmallri]