ST M34E02/M34E02-F handbook
Datasheet
M34E02, M34E02-F 2 Kbit serial presence detect (SPD) EEPROM for double data rate (DDR1 and DDR2) DRAM modules. It features 100 kHz and 400 kHz I2C bus serial interface, byte and page write, and self-timed write cycle.
