Yes, I was also thinking the POT command which would be similar.
Digital measure of capacitor discharge through a resistor.
The resistor there could be a thermistor and quality capacitor if it mattered a lot.

I want to come up with a good method of watching other chips in a circuit,
or just one sensor if the thing is in an enclosure, just because it can be cheap so one might as well use any spare pins.
For now, I like the idea of just looking at a startup temp, a normal operating temp,
and a severe warning temp hotter than expected where action might be taken to turn off a power transistor.