Spezifikationen
Hersteller: STMicroelectronics
Device Type: Automotive standard 2Kbit I2C bus serial EEPROM nonvolatile memory chip, delivered via tape and reel for automated surface mount assembly
Elektrische Parameter
Total memory capacity: 2Kbit, arranged as 256 × 8-bit bytes
Operating supply voltage range: 1.8 V ~ 5.5 V
Maximum I2C communication clock frequency: 400kHz
Single page write size: 8 bytes
Maximum programming time for each page: 5ms
Each memory cell supports 4 million erase and write cycles
Data retention duration lasts no less than 200 years under normal ambient temperature
Operating temperature range: -40°C ~ 125°C
Automotive certification standard: AEC-Q100 Grade 1
Package specification: 8-pin narrow SOIC surface mount package
Kernfunktionen
It adopts universal two-wire I2C communication interface, which can be stably matched with all mainstream automotive microcontrollers
Hardware write protection pin can lock the entire memory area to avoid accidental erasure and rewriting of key stored data
Three configurable address pins allow up to eight identical chips to run on one I2C bus simultaneously
Built-in power-on reset and undervoltage lockout circuits prevent invalid write operations caused by power supply voltage fluctuations
Enhanced internal anti-surge and electrostatic protection circuits adapt to the complex and volatile power environment inside vehicles
Ultra-low quiescent current in standby mode effectively reduces static power consumption of automotive electronic modules during parking
Reading and writing performance remains consistent across the full working temperature range
Halogen-free packaging materials comply with RoHS environmental specifications for automotive applications
Typische Anwendungsszenarien
Automotive small ECU fixed parameter storage
Vehicle body control module configuration data backup
Automotive sensor calibration parameter preservation
Car dashboard minor setting information recording
On-board auxiliary electronic equipment user preference storage
Miniature automotive embedded circuit configuration data saving
