125 MHz MEMS clock source with AEC-Q100 qualification
The DSC1121AE2-125.0000T is a 125 MHz MEMS-based oscillator from Microchip's DSC1121 series, delivering a CMOS output with ±25 ppm frequency stability across its -20°C to 70°C operating range. Rated AEC-Q100, this part is qualified for automotive applications where reliability screening and temperature cycling are required — suitable for cabin or chassis-domain ECUs that demand a hardened clock source. The MEMS resonator replaces a quartz crystal, offering improved shock and vibration tolerance and faster startup compared to a traditional crystal oscillator — a practical advantage in automotive and industrial environments.
Supply voltage and output drive
Operates from a 2.25V to 3.6V supply, covering 2.5V and 3.3V rails without an external regulator — the wide input range simplifies power tree design. CMOS output drives standard logic families directly; maximum supply current is 35 mA when enabled and 22 mA when disabled via the Enable/Disable function.
Housed in a 6-SMD, No Lead Exposed Pad package measuring 7.00 mm x 5.00 mm with a seated height of 0.90 mm — a standard footprint for 7x5 mm oscillators, compatible with reflow soldering profiles. Surface-mount package supplied on Tape & Reel, suitable for automated pick-and-place assembly.
The part is available for new designs and volume production. Sourced through independent distribution; quoted to order against the BOM quantity.