The Tape & Reel (TR) method is used for packaging clock ICs. The peak reflow temperature (Cel) amounts to 260 to be essentially indestructible. The uPs/uCs/Peripheral IC clock generator incoporates is CLOCK GENERATOR, PROCESSOR SPECIFIC.
SI5340A-B03954-GMR Features
SI5340A-B03954-GMR Applications
There are a lot of Silicon Labs SI5340A-B03954-GMR Clock Generators applications.