74.25 MHz MEMS XO with automotive-grade qualification
The DSC1001DI2-074.2500T is a Microchip MEMS-based oscillator delivering a fixed 74.25 MHz CMOS output from a 4-SMD no-lead package measuring 2.50 mm x 2.00 mm. It is AEC-Q100 qualified, meaning it has passed the temperature, reliability, and PPAP requirements for automotive deployment — under-hood or cabin domain.
The standby (power-down) pin drops the supply current from 8.7 mA max to 15 µA max — a 580:1 ratio that lets the oscillator sleep between bus wake cycles without draining the battery.
A MEMS oscillator survives higher shock and vibration — typically 50,000 g vs 5,000 g for a quartz can — and has no crystal aging drift from the first year. The 4-SMD package has no exposed crystal can, so reflow is straightforward: standard lead-free profile, no special bake unless the reel moisture indicator card shows exposure.