The DSC1001DC5-040.0000T is a 40 MHz MEMS-based XO from Microchip's DSC1001 series, delivering a CMOS output with ±10 ppm frequency stability across its 0°C to 70°C operating range.
Operating from 1.8V to 3.3V, this oscillator spans the three most common digital logic rails — a single BOM line covers 1.8V MCU, 2.5V FPGA, and 3.3V peripheral domains without a level translator.
Housed in a 4-SMD, no-lead package measuring 2.50mm x 2.00mm with a seated height of 0.90mm max, this footprint matches the industry-standard 2.5 x 2.0 mm oscillator land pattern — no via-in-pad required, and the small size frees board space near the processor.