24.576 MHz MEMS clock — what it replaces on the BOM
The DSC1030BE1-024.5760 is a MEMS-based XO (standard oscillator) that outputs a clean 24.576 MHz CMOS clock from a 3V supply rail.
Stability and temperature — indoor duty only
That is the standard tolerance for a 24.576 MHz clock feeding an Ethernet PHY, a USB controller, or an audio codec in an office or appliance environment. It is not rated for outdoor telecom cabinets or engine-bay temperatures — if the ambient goes below -20°C or above +70°C, the oscillator will drift outside the ±50 ppm window.
Standby function — where the 1 µA matters
The standby (power-down) pin is the differentiator versus a basic quartz oscillator. When asserted, the output goes high-impedance and the internal MEMS resonator stops, drawing 1 µA max from the 3V rail. For a battery-powered sensor node that spends 99 % of its time asleep, that standby current is negligible — the oscillator's own draw does not compete with the MCU's deep-sleep leakage.
Lifecycle — active, no obsolescence watch
Microchip lists the DSC1030BE1-024.5760 as Active. The part is in production and can be designed in without a last-time-buy contingency.