The DS2431-A1 is an AEC-Q100 Grade 1 qualified version of the DS2431. The logical behavior of both versions is identical. The DS2431-A1 is a 1024-bit, 1-Wire® EEPROM chip organized as four memory pages of 256 bits each. Data is written to an 8-byte scratchpad, verified, and then copied to the EEPROM memory. As a special feature, the four memory pages can individually be write protected or put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. The DS2431-A1 communicates over the single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit ROM registration number that is factory lasered into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment. Applications * Accessory/PCB Identification * Automotive Cable Assembly Identification * Automotive Sensor Identification and Calibration Data Storage * 1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits * Individual Memory Pages Can Be Permanently Write Protected or Put in EPROM-Emulation Mode ("Write to 0") * Switchpoint Hysteresis and Filtering to Optimize Performance in the Presence of Noise * IEC 1000-4-2 Level 4 ESD Protection (+8kV Contact, +15kV Air, Typ) * Reads and Writes Over a 4.5V to 5.25V Voltage Range from -40°C to +125°C * Communicates to Host with a Single Digital Signal at 15.4kbps Using 1-Wire Protocol * Meets AEC-Q100 Grade 1 Qualification Requirements * Also Available as Standard Version for Industrial Temperature Range (DS2431) https://elecena.pl/product/22302132/1024-bit-1-wire-eeprom-for-automotive-applications 2022-12-25 https://elecena.pl/product/22302132/1024-bit-1-wire-eeprom-for-automotive-applications 2025-01-17