The DSC1101CI1-018.7500T is a fixed-frequency MEMS-based XO (Standard) oscillator from Microchip's DSC1101 series, delivering a 18.75 MHz CMOS output with ±50 ppm absolute pull range (APR) across the full industrial temperature band. It operates from a 2.25V to 3.6V supply, covering both 2.5V and 3.3V logic rails without a secondary regulator — a single rail powers the clock source and the downstream ASIC or FPGA bank.
The 6-VDFN package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — the small footprint fits dense PCB layouts, but the exposed pad requires a thermal via pattern under the package to keep the MEMS die within its operating range during high-current drive.