AEC-Q100 qualification and standby power-down
The DSC6013JE2A-PROGRAMMABLE: The standby function drops current consumption to 12 µA maximum when disabled — the wake-up energy is low enough that a coin cell can keep the clock alive through long sleep intervals without dominating the battery budget.
Sourcing an obsolete MEMS oscillator
The 4-SMD no lead footprint (2.50mm x 2.00mm) is common across the DSC60XX family, so a board spin to a different Microchip MEMS part is possible if the BOM line is still in design.