Found 9 alternatives for CAT24C16C4ATR by onsemi. Memory — 4-XFBGA, WLCSP.
IC EEPROM 64KBIT I2C 1MHZ 4WLCSP
IC EEPROM 64KBIT I2C 1MHZ 4WLCSP
IC EEPROM 128K I2C 1MHZ 4WLCSP
IC EEPROM 32KBIT I2C 1MHZ 4WLCSP
IC EEPROM 8KBIT I2C 4WLCSP
IC EEPROM 8KBIT I2C 4WLCSP
IC EEPROM 128KBIT I2C 4WLCSP
IC EEPROM 4KBIT I2C 4WLCSP
256-KBIT SERIAL I2C BUS EEPROM