What the MEMS resonator buys you over quartz
The DSC8002DI2-PROGRAMMABLE: The output is CMOS, which mates directly with the clock input of most MCUs, FPGAs, and SoCs without needing a level translator.
Frequency range and stability — what ±25 ppm actually means
Programmable from 1 MHz to 150 MHz via Microchip's factory programming or a field programmer — the same part number covers your entire clock tree if you order programmed frequencies. At ±25 ppm total frequency stability (including initial accuracy, temperature drift, and aging), this holds timing for UART bit rates up to several Mbps and for basic Ethernet PHY reference clocks without additional PLL margining. When the standby function is asserted, current drops to 1 µA max — the oscillator stops and the output goes high-impedance, preserving battery life in sleep-mode-heavy designs.
Board fit and temperature grade
The MEMS construction inherently tolerates wider temperature swings than fundamental-mode quartz, though the spec sheet limits here are the stated ±25 ppm over this range.
It is a standard catalog oscillator, not a custom or legacy device, so supply continuity through authorized and independent channels is predictable. Because the DSC8002 series is programmable after purchase, distributors and brokers typically stock blank devices and program to your frequency at order time — or ship factory-programmed parts against the BOM line. Either way, availability is confirmed at quote.