MEMS oscillator, now obsolete — sourcing path
The DSC8002BI2: Its key differentiator is the MEMS resonator core, which provides faster startup and better jitter immunity than quartz-based oscillators in the same 5.0x3.2mm SMD footprint. Microchip has marked this part as Obsolete. For a production BOM that still calls out this order code, the supply path runs through independent surplus and excess inventory channels — not the factory. Availability is lot-specific and confirmed at RFQ time.
At 3.3V the max supply current is 10 mA, and in standby (disable) mode the current drops to 1 µA max — low enough to leave the oscillator powered on the same coin cell as the rest of the sleep domain. Total frequency stability is ±25 ppm, which includes temperature, voltage, and aging effects. For a 100 MHz clock this is ±2,500 ppm — well within the tolerance for a generic MCU or FPGA reference, but not tight enough for a precision ADC sampling clock without a PLL cleaning it up.
Industrial temperature and board integration
The part ships as a blank (unprogrammed) device — the user programs the desired output frequency via Microchip's TimeFlash or a compatible programmer before assembly. This makes the DSC8002BI2 a single BOM line that covers multiple frequency variants, but adds a programming step to the manufacturing flow.