The DSC1121AE1-075.0000 is an active-production MEMS-based XO from Microchip Technology, delivering a 75 MHz CMOS output with ±50 ppm frequency stability across -20°C to 70°C.
Supply voltage range and disable function
Operates from 2.25V to 3.6V, covering 2.5V and 3.3V logic rails without an external regulator — the Enable/Disable pin pulls the output to high-Z and drops supply current to 22 mA max. Max supply current when enabled is 35 mA, making it a low-power option for always-on modules that need a clean 75 MHz reference.
Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00mm x 5.00mm with a seated height of 0.90mm — a standard 7x5 mm oscillator footprint that matches many quartz XO land patterns.