What are the design criteria for Nucleo Oscillator?

[ALisk.1]

What are the design criteria by which the oscillator for the Nucleo dev kits has been selected?

[Tesla DeLorean]

Cheapness? The BOM call out the exact part numbers if you want to know the ppm, temp range, and load capacitance..

There are literally dozens of "Nucleo" boards, including 32, 64 and 144-pin formats. Can you perhaps narrow the question a little?

There is an Application Note on Crystal selection, and component values.

The NUCLEO's include an ST-LINK/V2 connecting via USB, USB places accuracy expectations on the clocking.

[Imen.D]

Hello @ALisk.1​ and welcome to the STM32 Community,

I recommend you this AN2867 Application note Oscillator design guide for STM8AF/AL/S, STM32 MCUs and MPUs, it provides guidelines for the oscillator design. 

When your question is answered, please close this topic by choosing "Select as Best".

Imen

[ALisk.1]

To be clearer:
Is there a specific reason that ST selected the NX3225GD for Nucleo 144pin?
Price?
Stability?
ESR?
Tolerance?
etc..
Thanks