MEMS oscillator at 45 MHz with CMOS output
The DSC1121CI2-045.0000T is a MEMS-based XO (Standard) from Microchip's DSC1121 series, delivering a fixed 45 MHz CMOS output from a 2.25V to 3.6V supply rail.
The 2.25V to 3.6V supply range covers both 2.5V and 3.3V logic rails without a separate voltage regulator — one BOM line serves multiple power domains.
The 6-VDFN package measures 3.20 mm x 2.50 mm with a seated height of 0.90 mm — a low-profile footprint that fits under a shielding can or on a dense mixed-signal board.