Active lifecycle — no last-time-buy pressure
The MAX6389LT31D3+T: ROHS3 Compliant certification covers EU and California regulatory requirements without exemption carve-outs, simplifying compliance documentation for finished goods shipped into those markets.
Two-rail monitoring with mixed fixed/adjustable thresholds
This Multi-Voltage Supervisor monitors two supply rails: one with a fixed 3.08V threshold (suitable for 3.3V core or I/O rails) and a second adjustable channel that can be set via an external resistor divider to any voltage down to 0.6V typically. The active-low, open-drain output lets multiple supervisors share a common reset bus — a common topology in multi-rail FPGAs and SoCs where all supplies must be valid before the processor releases from reset. The 140ms minimum reset timeout holds the processor in reset long enough for the slowest rail to stabilize, preventing brown-out or power-on glitches from reaching the core logic.
Industrial temperature grade and compact package
Housed in a 6-WFDFN package (supplier device package 6-uDFN 1.5x1), the footprint is 1.5mm x 1.0mm — small enough for space-constrained designs like handheld instruments or sensor nodes.