The DSC1001DC5-012.8000 is a MEMS-based XO (Standard) oscillator from Microchip's DSC1001 series, delivering a 12.8 MHz CMOS output with a frequency stability of ±10 ppm across its commercial temperature range. A ±10 ppm stability band is tight enough for 100BASE-TX Ethernet reference clocks and CAN bus timing without external trimming — the MEMS resonator holds frequency across supply and temperature variations better than a basic ceramic resonator.
Housed in a 4-SMD, no-lead package measuring 2.50 mm x 2.00 mm with a seated height of 0.90 mm — a compact footprint that fits space-constrained PCBs alongside the MCU or PHY. Supply voltage range of 1.8V to 3.3V covers common logic rails without an external level shifter; the Enable/Disable function (pin 1) allows the oscillator to be gated, dropping supply current to 15 µA max when disabled.