EFM8BB3 Datasheet, PDF (59/70 Pages) Silicon Laboratories – The EFM8BB3 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

9. QFN24 Package Specifications
9.1 QFN24 Package Dimensions
EFM8BB3 Data Sheet
QFN24 Package Specifications
Figure 9.1. QFN24 Package Drawing
Dimension
A
A1
A2
A3
b
b1
D
E
Table 9.1. QFN24 Package Dimensions
Min
Typ
0.8
0.85
0.00
—
—
0.65
0.203 REF
0.15
0.2
0.25
0.3
3.00 BSC
3.00 BSC
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Max
0.9
0.05
—
0.25
0.35
Preliminary Rev. 0.2 | 58