It is packaged using the Tray method since it is a clock IC. In the reflowing process, this clock generator ic is able to maintain a maximum temperature of 260. The number of uPs/uCs/Peripheral IC this time clock generator incorporates is CLOCK GENERATOR, PROCESSOR SPECIFIC.
SI5355A-B04981-GM Features
SI5355A-B04981-GM Applications
There are a lot of Silicon Labs SI5355A-B04981-GM Clock Generators applications.