32Kbit I2C EEPROM — obsolete, last-time-buy sourcing
The M24C32-RMB6TG is a 32Kbit serial EEPROM from STMicroelectronics, organized as 4K x 8 bits, communicating over an I²C bus at up to 1 MHz. This part is officially obsolete per the manufacturer's lifecycle status.
Timing and write endurance for the BOM
Random read access time is 450 ns, and the page write cycle completes in 5 ms typical. At 1 MHz clock, a full 32Kbit read takes roughly 33 ms — budget this into the firmware boot or calibration sequence. The 8-UFDFN exposed pad package (2x3 mm body) demands a thermal land on the PCB for heat sinking during soldering and for mechanical stability. The supplier device package is 8-UFDFPN (2x3).