AT24CSW010-UUM0B-T, from Microchip Technology, is a 1Kb I²C EEPROM memory IC designed around reliable non-volatile storage.
It offers 1Kb of storage (128 bytes), communicates over I²C, runs from a 1.7V ~ 3.6V supply, and comes in the 4-WLCSP package. Clock frequencies up to 1 MHz are supported. Often paired with microcontrollers to hold boot configuration, calibration values, and service or maintenance records.
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