AEC-Q100 qualified 8Kbit SPI EEPROM for automotive ECUs
The STMicroelectronics M95080-DRDW3TP/K is an 8Kbit SPI EEPROM from the Automotive, AEC-Q100 series, designed for non-volatile parameter storage in automotive electronic control units. Organised as 1K x 8 bits, this EEPROM stores configuration words, trim values, and diagnostic counters that must survive key-off cycles. The 4 ms write-cycle time per word or page allows the ECU to commit a full parameter block before the power-supply hold-up capacitor decays.
20 MHz SPI bus — margin for daisy-chained sensor clusters
At 20 MHz the SPI interface provides a 50 ns clock period, which leaves timing margin when routing through a connector to a remote sensor module. The 8-TSSOP package (4.40 mm wide) fits in space-constrained ECU layouts alongside the main microcontroller.
RoHS3 compliance satisfies EU Directive 2015/863 and avoids the need for exemption documentation.