35ms reset timeout — what it buys you
The 35ms minimum reset timeout is the window during which the processor is held in reset after the supply crosses the threshold. That is enough time for most oscillators to stabilise and for the core supply to settle before the CPU starts executing code. If your processor needs a longer reset pulse, you would need to add an external RC delay or switch to a supervisor with a programmable timeout — this part is fixed at 35ms.
RoHS non-compliant — plan accordingly
The MAX690TESA is marked RoHS non-compliant. That means it contains lead (Pb) above the RoHS exemption thresholds and cannot be used in new EU-market products without a RoHS exemption. For legacy repair, MRO, or military/aerospace builds where leaded solder is still accepted, this is not a blocker. If your BOM requires RoHS compliance, look at the MAX690TESA+ (the lead-free variant).
Active production — no LTB risk
The MAX690TESA is listed as Active with no last-time-buy or end-of-life notice. That means Maxim (now part of Analog Devices) continues to manufacture it, and the supply chain supports normal production orders. No urgency to stockpile or find a drop-in replacement for ongoing builds.