The M24C16-A125 is a 16-Kbit serial EEPROM Automotive grade device operating up to 125 °C. The M24C16-A125 is compliant with the very high level of reliability defined by the Automotive standard AEC-Q100 grade 1.The device is accessed by a simple serial I²C compatible interface running up to 1 MHz.The memory array is based on advanced true EEPROM technology (electrically erasable programmable memory). The M24C16-A125 is a byte-alterable memory (2048 × 8 bits) organized as 128 pages of 16 bytes in which the data integrity is significantly improved with an embedded Error Correction Code logic.The M24C16-A125 offers an additional Identification Page (16 bytes) in which the ST device identification can be read. This page can also be used to store sensitive application parameters which can be later permanently locked in read-only mode.Compatible with all I²C bus modes1 MHz400 kHz100 kHzMemory array16 Kbits (2 Kbytes) of EEPROMPage size: 16 bytesAdditional Write lockable page (Identification page)Extended temperature and voltage ranges-40 °C to 125 °C; 1.8 V to 5.5 VSchmitt trigger inputs for noise filteringShort Write cycle timeByte Write within 4 msPage Write within 4 msWrite cycle endurance4 million Write cycles at 25 °C1.2 million Write cycles at 85 °C600 k Write cycles at 125 °CData retention50 years at 125 °C100 years at 25 °CESD Protection (Human Body Model)4000 VPackagesRoHS compliant and halogen-free (ECOPACK2® )