MEMS oscillator for automotive and industrial timing
The DSC1121BI2-013.0000: AEC-Q100 qualification means this part is screened for automotive-grade reliability — suitable for under-hood or cabin electronics where vibration and thermal cycling are routine. The Enable/Disable function allows the output to be tri-stated, letting the system clock be gated without removing power from the oscillator.
Supply voltage and power budget
Operating from 2.25 V to 3.6 V, the oscillator works on both 2.5 V and 3.3 V rails without an external regulator — a single BOM line covers mixed-voltage designs. Maximum supply current is 35 mA when enabled, dropping to 22 mA when disabled — the disable current is still present because the internal MEMS and PLL remain powered.
Housed in a 6-SMD, No Lead package measuring 5.00 mm x 3.20 mm with a seated height of 0.90 mm, the footprint matches standard 5.0 x 3.2 mm oscillator pads — no layout change from a quartz XO. Surface-mount assembly with no leads means the package sits flush on the PCB; the MEMS resonator inside is inherently more shock-tolerant than a quartz crystal, which matters for automotive and portable applications.