The DSC1121CI2-025.0012T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a 25.0012 MHz CMOS output with ±25 ppm frequency stability across -40°C to 85°C.
Package, footprint, and supply voltage
Housed in a 6-SMD, No Lead package measuring 3.20 mm x 2.50 mm with a seated height of 0.90 mm, the DSC1121CI2-025.0012T fits the standard 3.2 x 2.5 mm oscillator footprint — a drop-in replacement for quartz XOs of the same size. Supply voltage range is 2.25 V to 3.6 V, covering 2.5 V and 3.3 V rails without an external regulator; the CMOS output swings rail-to-rail, so no level translation is needed when driving a 3.3 V MCU clock input.