MEMS oscillator with military temperature range
The DSC1101DM5-080.0000T is a MEMS-based XO (Standard) from Microchip's DSC1101 series, delivering a 80 MHz CMOS output with ±10 ppm frequency stability — tight enough for most serial communication and processor clock trees without external trimming.
Active current draw is 35 mA max at 80 MHz, typical for a CMOS-output oscillator at this frequency.
Microchip lists the DSC1101DM5-080.0000T as Obsolete. No official successor or drop-in replacement is recorded from the original manufacturer. A BOM that depends on this part should plan for a board-level redesign to a current-production oscillator.