The DSC1001DI1-014.7456 is a MEMS-based XO producing a 14.7456 MHz CMOS output from a 1.8V to 3.3V supply rail, drawing 6.3 mA maximum. The standby function pulls supply current down to 15 µA maximum when the enable pin is driven low, allowing the ECU to shut down the clock tree without a dedicated power switch.
The 2.50 mm x 2.00 mm 4-SMD no-lead package (0.90 mm seated height) fits a standard 2.0 x 2.5 mm oscillator footprint; the MEMS die eliminates the need for a load-capacitance calculation that quartz requires.