Automotive-grade 16 Kbit I²C EEPROM for parameter storage
The STMicroelectronics M24C16-DRMN3TP/K is a 16 Kbit serial EEPROM organized as 2K x 8 bits, communicating over an I²C bus at up to 1 MHz. It is qualified to AEC-Q100, making it suitable for automotive ECU parameter storage, calibration tables, and fault-log retention in under-hood and cabin environments.
The 125°C ceiling matches the hot-end of the AEC-Q100 Grade 1 requirement, so it fits designs that must survive under-hood soak-back or near-exhaust heat. Compare with the M24C16-DRMN8TP/K sibling, which tops out at 105°C — that variant suits cabin or chassis applications where the thermal budget is looser.
Write cycle and endurance for field updates
Page and word writes complete in 4 ms typical, which is fast enough for in-application firmware parameter updates without blocking the I²C bus for long. The 1 MHz clock keeps read bursts snappy — useful when the MCU polls calibration data at boot or during runtime reconfiguration.
Supplied in an 8-pin SOIC (3.90 mm width) — a standard footprint shared across the M24C16 family. Surface-mount assembly with no exposed pad simplifies layout; just route the I²C lines with appropriate pull-up resistors for the bus capacitance.