EFM8BB3 Datasheet, PDF (31/70 Pages) Silicon Laboratories – The EFM8BB3 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

6. Pin Definitions
6.1 EFM8BB3x-QFN32 Pin Definitions
EFM8BB3 Data Sheet
Pin Definitions
P0.0 ¹
VIO ²
VDD ³
RSTb / C2CK 4
P3.7 / C2D 5
P3.4 6
P3.3 7
P3.2 8
32 pin QFN
(Top View)
GND
24 P1.1
23 P1.2
22 P1.3
21 P1.4
20 P1.5
19 P1.6
18 P1.7
17 P2.0
Figure 6.1. EFM8BB3x-QFN32 Pinout
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