Hello, In the "I2C Tools Page": http://www2.lm-sensors.nu/~lm78/i2ctools.html there is chart listing general devices addresses. The range 0x30 thru 0x37 is listed as "eeprom shadow", whereas the range 0x50 thru 0x57 is listed as "eeprom". Does this mean that the same (eeprom) device will respond to both addresses? Or are these two distint devices? Thanks for the clarification, Leo Duran.