The DSC1001DI2-066.6600T is a MEMS-based oscillator delivering a 66.66 MHz CMOS clock output with ±25 ppm frequency stability across its full operating range. It runs from a 1.8V to 3.3V supply rail, drawing 7.2 mA max at 66.66 MHz — the standby function drops consumption to 15 µA when the clock is disabled. The 4-SMD no-lead package (2.50 mm × 2.00 mm × 0.90 mm) fits tight PCB layouts; the MEMS resonator eliminates the quartz crystal's shock and vibration sensitivity.
The MEMS base resonator is inherently more robust than a quartz crystal under vibration and thermal cycling, which is why Microchip targets this series at automotive and industrial applications.