Active 4 Kbit I²C EEPROM — small footprint, wide supply
The STMicroelectronics M24C04-RMC6TG is a 4 Kbit serial EEPROM with an I²C interface, organized as 512 x 8 bits. The 400 kHz bus clock and 900 ns access time are standard for this density class — adequate for parameter storage, calibration constants, and configuration data that needs non-volatile retention.
The 8-UFDFN exposed-pad package (2x3 mm) saves board area — the pad pulls heat to the PCB ground plane, though at this density thermal management is rarely the constraint.