The DSC6003MA3B-080.0000T is a MEMS-based XO (Standard) from Microchip's DSC60XXB series, delivering a 80 MHz CMOS output with ±20 ppm frequency stability.
Operating from 1.71V to 3.63V, the oscillator spans 1.8V and 3.3V logic rails without an intermediate regulator — the same BOM entry works across a mixed-voltage board. Typical supply current is 1.3 mA, which keeps the thermal contribution low in the compact 2.00 mm x 1.60 mm 4-VFLGA package.
The 4-VFLGA package (2.00 mm x 1.60 mm, 0.89 mm seated height) is a surface-mount land-grid array — the small footprint suits space-constrained designs, but the LGA pads require a solder-paste stencil with aperture matching the datasheet land pattern to avoid opens.