Dual-rail supervisor for core and I/O sequencing
The MAX6715UTVDD3-T from Analog Devices is a two-channel multi-voltage supervisor that monitors two independent supply rails, with factory-set thresholds of 0.788 V and 1.575 V. When either monitored voltage drops below its threshold, the open-drain output pulls low and holds the reset state for a minimum of 140 ms after all rails return above threshold — enough time for the downstream core and I/O supplies to settle before the system releases from reset. The 0.788 V threshold targets low-voltage core rails (1.0 V or 0.9 V-class ASICs/FPGAs), while the 1.575 V threshold suits 1.5 V or 1.8 V memory or I/O supplies — a common pairing in dual-supply SoC designs.
SOT-23-6 footprint and industrial temperature grade
Housed in a 6-pin SOT-23 package, the MAX6715UTVDD3-T occupies minimal board area and suits compact, multi-rail systems where a single supervisor replaces two discrete reset ICs. Rated for operation from -40°C to 85°C, it covers the industrial temperature range — suitable for factory automation, base stations, and outdoor-edge equipment that sees seasonal temperature swings.
Note that this part is marked RoHS non-compliant — confirm your assembly's exemption allowance before specifying it into a RoHS-required BOM.