NRND — planning for last-time-buy or alternative
STMicroelectronics lists the M24C01-WDW6TP as NRND (Not Recommended for New Designs). This means the part remains available for existing production but is not intended for new design-ins — the manufacturer may issue an end-of-life notice without a long last-time-buy window.
8-TSSOP package — board-fit and integration
The 0.65 mm lead pitch and standard footprint mean it drops into the same PCB land pattern as other industry-standard 8-pin serial EEPROMs in this package.
900 ns access, 5 ms page write — timing for the bus
The 400 kHz clock rate is the standard fast-mode I²C speed; the device acknowledges each byte within the same clock frame, so no extra wait states are inserted by the memory.