40 MHz MEMS XO with military temperature range
The DSC1101DM5-040.0000T is a MEMS-based XO (Standard) delivering a 40 MHz CMOS output with ±10 ppm frequency stability across the full -55°C to 125°C military temperature range — a combination that suits avionics, downhole instrumentation, and satellite payloads where quartz oscillators struggle with vibration and thermal shock. Supply voltage spans 2.25V to 3.6V, so it runs from a 2.5V or 3.3V rail without a separate regulator; the 35 mA max supply current is typical for a 40 MHz CMOS output stage.
Microchip lists the DSC1101DM5-040.0000T as Obsolete.
6-VDFN package and board layout
Housed in a 6-VDFN package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint for space-constrained designs. Surface-mount assembly; the small pad pitch demands careful stencil design to avoid solder bridging.