The MEMS construction gives it better resistance to vibration and a faster startup than a quartz oscillator of the same frequency — relevant if the board sees engine-bay shake or needs to lock a PLL quickly after power-on.
Supply voltage range and standby function
For an AEC-Q100 qualified part, this is a Grade 4 ambient range; if the application requires -40°C to +125°C, a different suffix in the DSC1001 family would be needed. Housed in a 4-SMD no-lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm. The 0.50 mm pitch footprint is standard for MEMS oscillators of this size — layout matches the common 3225 crystal footprint, so it can drop into a board originally designed for a quartz oscillator of the same dimensions.