The DSC1001CI1-012.0000T is a 12 MHz MEMS-based XO (standard) from Microchip's DSC1001 series, delivering a CMOS output across a 1.8V to 3.3V supply range — a single oscillator that can serve 1.8V, 2.5V, and 3.3V domains on the same ECU without separate part numbers. Frequency stability is ±50 ppm, tight enough for CAN, LIN, and most MCU clock domains without external compensation.
MEMS vs. quartz — why this oscillator avoids crystal aging drift
The ceramic 4-SMD package (, 3.20mm x 2.50mm) is a drop-in footprint compatible with many quartz crystal oscillators, but the MEMS die eliminates the need for a separate quartz blank and its associated aging curve.
