The DSC1001DC5-012.8000T is a MEMS-based XO (Standard) oscillator from Microchip's DSC1001 series, delivering a 12.8 MHz CMOS output with ±10 ppm frequency stability. Supply voltage spans 1.8V to 3.3V, letting it run off a common 3.3V or 1.8V rail without an extra LDO — useful when the same BOM serves multiple logic families.
The standby pin lets firmware gate the clock tree: pull it low, the output goes high-Z and the core shuts down, saving 99.8% of the active current.
Housed in a 4-SMD no-lead package measuring 2.50 mm × 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits tight layout zones near the processor or PHY.