I²C EEPROM for non-volatile parameter storage — 8 Kbit, 400 kHz, 8-SOIC
The STMicroelectronics M24C08-WMN6P is an 8 Kbit I²C serial EEPROM organized as 1K x 8 bits, in an 8-SOIC package.
NRND status — plan a transition
This means STMicroelectronics is not actively promoting this part for new projects, though it remains available for existing production runs through the independent distribution channel. For new designs, evaluate the M24C08-WMN6T (the Tape & Reel variant) or a higher-density sibling in the same M24C08 family as a drop-in replacement — verify pin compatibility and timing against the datasheet.
900 ns access time and 400 kHz I²C bus
The 900 ns access time defines the window from address match to data available on the SDA line. At a 400 kHz I²C clock (2.5 µs period), the 900 ns access leaves roughly 1.6 µs for the slave to release the bus — adequate margin for most master controllers, but check the setup/hold timing against your MCU's I²C peripheral if you are running near the maximum bus capacitance limit. The 5 ms write cycle is per page or byte; the part does not acknowledge during the write cycle, so the master must poll or wait before sending the next command.
Package and supply — what to check on the board
The write cycle requires no external high voltage — the charge pump is on-chip. For the Tube shipping medium, plan for manual or low-volume assembly; the Tape & Reel variant (M24C08-WMN6T) is better suited for automated pick-and-place.