2404 I2C 2x256x8 EEPROM with write protect. Address is 1010xxy where x can be specified by the A1-2 inputs, and y selects the 256-byte bank to use. A0 has no function, but must be connected to GND or VCC. +----------+ A0 |1 +--+ 8| VCC A1 |2 7| WP A2 |3 2404 6| SCL GND |4 5| SDA +----------+ [This information is part of the GIICM]