The DSC1001DE1-050.0000T is a 50 MHz MEMS-based oscillator in the Microchip DSC1001 series, delivering a CMOS output from a 1.8V to 3.3V supply rail.
The 1.8V to 3.3V supply range means the same oscillator can run from a 1.8V core rail, a 2.5V I/O rail, or a 3.3V system rail — no extra level translator needed between the oscillator output and the downstream logic.
Housed in a 4-SMD No Lead package measuring 2.50mm x 2.00mm with a seated height of 0.90mm, this oscillator fits tight PCB real estate and is compatible with standard reflow soldering profiles. The 0.098" x 0.079" footprint is common among small MEMS oscillators — the four pads map to supply, ground, output, and enable, so layout is straightforward.