EEPROM chips are often used to store configuration information and connected over I2C. But there are also SPI EEPROM, and STMicro has just announced one of the largest ones with M95M04-DR 4-Mbit serial SPI EEPROM.
M95M04-DR key features:
- Capacity - 4 Mbit (512 Kbytes) of EEPROM with 512 bytes page size and additional write lockable page (Identification page)
- Host Interface - Serial peripheral interface (SPI) bus
- Write time - Byte Write within 5 ms, Page Write within 5 ms
- Write protect - Quarter array, half array, and whole memory array
- More than 4 million Write cycles
- More than 40-year