Automotive-grade 32 Kbit I²C EEPROM for under-hood calibration storage
The STMicroelectronics M24C32-DRMF3TG/K is a 32 Kbit serial EEPROM with an I²C interface, organized as 4K x 8 bits. It is part of the Automotive, AEC-Q100 series, qualified for use in automotive environments including engine control units, transmission controllers, and ADAS modules where non-volatile parameter storage is needed. The part operates from a 1.8V to 5.5V supply, supports a 1 MHz clock frequency, and delivers a 450 ns access time — fast enough for most real-time calibration reads without wait states.
Temperature range and package — fits engine-bay and compact ECU layouts
The exposed pad must be connected to ground for both thermal and electrical performance. Surface-mount assembly follows standard lead-free reflow profiles; MSL is not specified in the listing, so assume MSL 1 unless the reel label says otherwise — store the reels dry if the bag seal is broken.
Write-cycle timing and endurance for production firmware updates
For a 32 Kbit device, page writes reduce total programming time significantly — a full 4 KB page write completes in 4 ms. The 1 MHz I²C bus clock allows fast readback for CRC verification after each write.
Active lifecycle — no near-term EOL risk for production BOMs
The base product number M24C32 is shared across several package and temperature variants, so if the 8-MLP footprint becomes an issue, the same die is available in other packages under the same M24C32 family.
The part is not typically stocked on the shelf in high volume due to its niche automotive package, but lead times are manageable through our supply network. If you need a faster-turn alternative, the M24C32-DRDW3TP/K shares the same die and AEC-Q100 qualification in an SOIC-8 package — a direct cross for designs that can accommodate the larger footprint.