Looking to use a Tiny 2040 in an application exposed to low temps. Hoping there’s a solution for -40C operation.
Environmental conditions are not specified for the RP2040. And there are no specific versions for industrial use. So you will probably have to do your own tests. You can read here: Overclocking Raspberry Pi Pico 2 about experiments with dry ice at about -80°C, but this is not comparable for your situation - I assume you would like the Tiny to work long-term at low-temperatures.
There are some things to keep in mind: the frequency of the ring-oscillator varies with temperature. Depending on what you do, this will have an impact.
Another big challenge is powering the unit. Batteries/LiPos don’t do well at these temperatures. If you have a good power supply and don’t run from Batteries/LiPos, you could think about some thermal regulation.