Configurable logic in a six-pin SOT-23
The SN74AUP1G58DBVR is a configurable multiple-function gate from TI's 74AUP low-power logic family. It packs three inputs and a single-ended output into a SOT-23-6 package — the same footprint as a basic single-gate part, but the logic function is set by the input connections, not hard-wired at the factory.
Supply voltage and the battery-powered board
It will not drive a relay coil directly — that is where a transistor buffer steps in.
Temperature grade and where it lives on the board
That covers most indoor and outdoor equipment enclosures, from a rooftop telecom box in winter to a factory-floor panel in summer. No Schmitt-trigger input on this variant, so the input edges must be clean; a slow-rising signal from a pushbutton or RC circuit may cause multiple transitions at the threshold.