3.07V threshold — the brown-out line for 3.3V rails
Its 3.07V threshold sits about 7% below the nominal rail — the typical trip point for a clean brown-out detection before the downstream logic enters an undefined state. The active-low, open-drain output pulls low when VDD drops below threshold and stays asserted through the reset timeout period after the supply recovers.
Adjustable reset timeout — sequencing without a second timer
The reset timeout is adjustable/selectable via an external capacitor on the CT pin — no fixed-delay variant locks you into a single power-up profile. This matters when the downstream MCU or FPGA needs a specific hold time after the rail stabilises before releasing reset.