The DSC1001CI1-003.6864T: AEC-Q100 qualification means this part is tested for automotive-grade reliability — thermal cycling, ESD, and latch-up — making it suitable for under-hood or chassis-domain timing applications where a quartz crystal might drift under vibration.
Runs from a 1.8V to 3.3V supply rail — the wide range lets it drop into a 1.8V core or 3.3V I/O domain without a level translator on the oscillator output.
