EFM32WG995 Datasheet, PDF (73/85 Pages) Silicon Laboratories – Operation from backup battery when main power drains out

...the world's most energy friendly microcontrollers
5 PCB Layout and Soldering
5.1 Recommended PCB Layout
Figure 5.1. BGA120 PCB Land Pattern
b
a
e
d
Table 5.1. BGA120 PCB Land Pattern Dimensions (Dimensions in mm)
Symbol
a
b
d
e
Dim. (mm)
0.25
0.50
6.00
6.00
2014-06-13 - EFM32WG995FXX - d0204_Rev1.40
73
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