EFM32WG990 Datasheet, PDF (68/80 Pages) List of Unclassifed Manufacturers – The EFM32 MCUs are the world’s most energy friendly microcontrollers.

Preliminary
...the world's most energy friendly microcontrollers
The BGA112 Package uses SAC105 solderballs.
All EFM32 packages are RoHS compliant and free of Bromine (Br) and Antimony (Sb).
2013-05-06 - EFM32WG990FXX - d0203_Rev1.10
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