Two-rail supervisor for mixed-voltage systems
The MAX6704YKA from Analog Devices is a two-channel multi-voltage supervisor that monitors one fixed threshold rail at 2.19 V and a second adjustable rail, letting it guard a core supply and an I/O or auxiliary rail from a single SOT-23-8 package. Both reset outputs are push-pull and available as active-high and active-low simultaneously, so the part can drive a microcontroller's reset pin and a power-good LED or enable signal without external inversion.
140 ms reset timeout and temperature range
The reset timeout is a minimum of 140 ms — long enough to let the monitored supplies settle after power-up before the processor is released from reset, but short enough that the system does not stall on a brief brown-out.
RoHS non-compliant — the part is built with lead-bearing solder terminations, so it is not suitable for EU RoHS-exempt assemblies unless a specific exemption applies.