EFM8BB3 Datasheet, PDF (51/70 Pages) Silicon Laboratories – The EFM8BB3 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

7. QFN32 Package Specifications
7.1 QFN32 Package Dimensions
EFM8BB3 Data Sheet
QFN32 Package Specifications
Dimension
A
A1
b
D
D2
e
E
E2
L
aaa
bbb
ccc
ddd
eee
ggg
Figure 7.1. QFN32 Package Drawing
Table 7.1. QFN32 Package Dimensions
Min
Typ
Max
0.45
0.50
0.55
0.00
0.035
0.05
0.15
0.20
0.25
4.00 BSC.
2.80
2.90
3.00
0.40 BSC.
4.00 BSC.
2.80
2.90
3.00
0.20
0.30
0.40
—
—
0.10
—
—
0.10
—
—
0.08
—
—
0.10
—
—
0.10
—
—
0.05
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