The DSC1001BE2-012.0000T is a MEMS-based oscillator from Microchip's DSC1001 series, delivering a 12 MHz CMOS output with ±25ppm frequency stability across a -20°C to 70°C operating range. Its AEC-Q100 qualification (cite:) makes it suitable for automotive electronics where temperature cycling and reliability stress are specified per the standard. The 1.8V to 3.3V supply range (cite:) lets it run from a common 3.3V rail or a lower 1.8V core supply without a separate regulator — useful when the same oscillator must serve multiple voltage domains on a mixed-signal board.
This matters for battery-backed or ignition-switched modules that must wake on a bus event without draining the reserve.
Housed in a 4-SMD, No Lead package (cite:) measuring 5.00mm x 3.20mm with a seated height of 0.90mm (cite:,). The 0.197" x 0.126" footprint is a standard 5x3.2 mm oscillator land pattern — no via-in-pad or buried trace required; a two-layer board with a solid ground pour under the package handles the return path cleanly.