Found 4 alternatives for LE2464RDXATDG by Rochester Electronics, LLC. Memory — 6-XFBGA, WLCSP.
IC EEPROM 16KBIT I2C 6WLCSP
IC EEPROM 16KBIT I2C 1MHZ 6WLCSP
IC EEPROM 32KBIT I2C 1MHZ 6WLCSP
IC EEPROM 64KBIT I2C 6WLCSP