32 Kbit I2C EEPROM — 450 ns access time, industrial temperature range
The STMicroelectronics M24C32-WMN6TP is a 32 Kbit serial EEPROM organized as 4K x 8 bits, accessed through an I2C interface. The 450 ns access time with a 1 MHz clock rate means the part can sustain back-to-back byte reads without wait states on a standard I2C bus, which is the typical use case for configuration storage and calibration data. The 5 ms write cycle time for a page write is the spec that governs firmware-update latency when writing multiple bytes — budget for this if the part stores boot parameters or lookup tables.
NRND — plan for a second source or a migration path
It is still available through independent distribution, but it is not the part to qualify into a new production BOM. For a new design, look at the current-production M24C32 siblings in the same SOIC-8 footprint.
SOIC-8 footprint, Tape & Reel supply
The 8-SOIC (3.90 mm width) package is surface-mount only.
