131.168 MHz MEMS XO with AEC-Q100 qualification
AEC-Q100 qualification means this oscillator has passed automotive-grade reliability stress tests — temperature cycling, ESD, latch-up — making it suitable for under-hood and chassis-domain electronics where a standard quartz XO would not be accepted without additional screening. The MEMS base resonator provides inherent shock and vibration tolerance compared to quartz, which is relevant for engine bay, transmission, and ADAS sensor modules where mechanical stress is a known failure mode.
Supply range and enable/disable function
Supply voltage spans 2.25 V to 3.6 V, covering common 2.5 V and 3.3 V logic rails without an external regulator — the wide range simplifies BOM consolidation across multiple voltage domains. The Enable/Disable function allows the output to be tri-stated, reducing supply current from 35 mA max to 22 mA max — useful for power-sequenced designs or test modes where the clock must be gated without a separate clock buffer.
Package and board-level fit
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, the footprint matches industry-standard 7x5 mm oscillator pads — a direct drop-in replacement for quartz XOs in the same form factor, provided the supply and output type are compatible.
Product status is Active, meaning Microchip continues to manufacture and support the DSC1121AI2-135.1680 for new designs and volume production. Sourced through independent distribution, the part is quoted to order against the BOM quantity.