Using discrete serial EEPROMs for data and parameter storage not only helps simplify development but also maximizes flexibility during upgrades. Previously, selecting memory packages and capacities was difficult, so this approach could not yield sufficient benefits for most space-constrained applications; however, ST’s new automotive-certified WFDFPN8 package covers the full range of capacities from 2Kbits to 512Kbits. It also supports I2C and SPI serial interfaces.

The WFDFPN8 outline has already proven its popularity in the consumer electronics sector, and ST has developed a highly durable version to succeed it, capable of withstanding automotive environments. This device has passed AEC-Q100 Grade 0 safety standard tests and operates up to 125°C. It has a write time of 4ms for rapid parameter storage, a clock frequency of up to 20MHz for rapid data exchange, and built-in tracking and security features, including a dedicated page for software identification and a write-lockable page for maintaining the safety of sensitive data.

ST's latest automotive EEPROM device is currently available for samples and mass production orders. The 2KB M24C02-DRMF3TG/K with I2C interface is priced starting at 15.6 cents ($0.156) per unit for orders of 5,000 units.

More detailed information can be found at the following site: www.st.com/automotiveeeprom