26.66 MHz MEMS oscillator with AEC-Q100 grade
The DSC1001CL2-026.6600T is a 26.66 MHz MEMS-based XO (Standard) from Microchip's DSC1001 series, delivering a CMOS output across a 1.8V to 3.3V supply range. Its AEC-Q100 rating means it passed the automotive reliability stress suite — temperature cycling, ESD, and latch-up — making it suitable for engine-bay or cabin ECUs where a quartz crystal might drift under vibration.
Temperature range and standby power
The standby (power-down) function drops supply current to 15 µA max — useful for battery-backed modules that need to wake on a bus event without draining the cell during sleep.
Housed in a 4-SMD, no-lead package measuring 3.20mm x 2.50mm with a seated height of 0.90mm. The 0.126" x 0.098" footprint is common across the DSC1001 family, so a single PCB layout can serve multiple frequency variants without a board spin.
No pin-compatible second source is listed, but the DSC1001 series shares the same package and pinout across frequencies, so a different frequency variant can be swapped in if the BOM frequency changes.