Which EEPROM is suitable for interfacing with PIC16F877A

[SolaiKannan]

can anyone tell me the suitable EEPROM for this pic 16f877a.i need a memory space of about 30K

[HenrikOlsson]

Hi,
I'm using the SST25 series of SPI memory devices, technically it's FLASH and not EEPROM but I don't think it matters. A 512kBit (64kByte) device costs around 60 cents. Since it's SPI you can use SHIFTOUT/SHIFTIN or you can use the MSSP module of the '877 for increased performance. These are not 5V devices though.

I'm sure though that "any" device will work just fine.

[Demon]

I like the I2C external EEPROMs like the 24AA256:
http://ww1.microchip.com/downloads/e...doc/21203m.pdf

Find the right serial EEPROM for you:
http://www.microchip.com/stellent/id...GE&nodeId=2697

Robert

[languer]

For adding ROM you could look at SPI EEPROMS or SPI FRAM. For adding RAM you could look at SPI RAM.

[SolaiKannan]

thank you to all for giving me some nice ideas