The DSC6001HI1B-020.0000T is a 20 MHz MEMS-based XO from Microchip's DSC60XXB series, qualified to AEC-Q100 — meaning it's tested to automotive-grade reliability over -40°C to +85°C. Output is CMOS, which interfaces directly with most MCU clock inputs, FPGAs, and logic without a level translator.
Supply voltage and frequency stability
Supply voltage range is 1.71V to 3.63V, covering 1.8V, 2.5V, and 3.3V logic rails from a single part. This avoids a dedicated regulator when the core voltage changes across a product family — one BOM line serves multiple power domains. For a 20 MHz clock, ±50 ppm translates to ±1 kHz — well within the tolerance of a typical UART or SPI bus.
Housed in a 4-VFLGA package measuring 1.60 mm x 1.20 mm with a seated height of 0.89 mm — a compact footprint for space-constrained designs. The 4-pad LGA requires a via-in-pad layout for the supply and output; the two remaining pads are the enable pin and ground. Keep the decoupling capacitor within 2 mm of the supply pad to maintain clean power. The small package means the oscillator can sit close to the load, reducing clock trace length and signal integrity risk.