Four-output MEMS XO: 25/20/24 MHz LVCMOS
The DSC400-1111Q0111KE1T is a MEMS-based XO (Standard) from Microchip's DSC400 series, delivering three fixed LVCMOS output frequencies: 25 MHz, 20 MHz, and 24 MHz. The MEMS resonator eliminates the quartz crystal's start-up and aging drift, and the enable/disable function lets you gate the outputs without removing power.
Supply range and temperature grade
Operates from 2.25 V to 3.6 V, covering both 2.5 V and 3.3 V logic rails without an intermediate regulator. The commercial temperature range of -20°C to 70°C fits indoor equipment, office peripherals, and telecom line cards — but not engine-bay or outdoor pole-mount enclosures.
Package and layout note
Housed in a 20-VFQFN with exposed pad (5.00 mm x 3.20 mm, 0.90 mm height). The exposed thermal pad must be soldered to a ground-plane island on the PCB for heat sinking; the 0.50 mm pitch QFN demands a solder-paste stencil aperture matched to the datasheet footprint recommendation to avoid bridging.
Lifecycle and supply posture
The part is available for new designs and ongoing production. Sourced and quoted to order against your BOM quantity; current pricing and lead time confirmed at RFQ.