CAT24C04C4ATR

Part CAT24C04C4ATR is onsemi’s 4Kb I²C EEPROM, a non-volatile memory solution for data that must survive power loss.

It offers 4Kb of storage (512 bytes), communicates over I²C, runs from a 1.7V ~ 5.5V supply, and comes in the 4-WLCSP (0.84×0.86 mm) package. Clock frequencies up to 400 kHz are supported. Often paired with microcontrollers to hold boot configuration, calibration values, and service or maintenance records.

Suitable for prototyping and production alike — ask about MOQ and lead time.