MEMS XO for automotive timing – what this part is
The DSC6001HE1A-000.0000T is a MEMS-based XO (standard oscillator) from Microchip's DSC60XX series, delivering a CMOS output clock from 1 MHz to 80 MHz with ±50 ppm total frequency stability. Its key differentiator is the AEC-Q100 qualification, meaning it passed automotive-grade reliability stress tests — shock, vibration, and temperature cycling that a quartz crystal might not survive in the same footprint. The 1.71V to 3.63V supply range lets it run from a 1.8V or 3.3V rail without an external regulator, and the Enable/Disable function (pin-controlled) drops supply current to 12 µA max when the clock is gated — useful for power-cycled automotive modules that sleep between CAN wake events.
Obsolete – sourcing reality for this order code
Despite the AEC-Q100 rating, the operating temperature range is -20°C to 70°C — commercial grade, not the full -40°C to +125°C typical of automotive under-hood parts. This oscillator fits cabin electronics (infotainment, cluster, telematics) or indoor industrial equipment, but not an engine bay or outdoor enclosure that sees -40°C startup.
The 4-SMD no-lead package measures 1.60 mm x 1.20 mm with a seated height of 0.89 mm max — a compact footprint that matches many standard 1.6 x 1.2 mm MEMS oscillator pads. The blank (user-programmable) variant means the frequency is set during manufacturing; the -000.0000T suffix indicates a factory-programmed frequency that must match the BOM requirement exactly.