EFM8BB2 Datasheet, PDF (31/55 Pages) Silicon Laboratories – The EFM8BB2 highlighted features are listed below

Pin
Number
1
Pin Name
P0.1
2
P0.0
3
GND
4
N/C
5
N/C
6
VDD
7
VREGIN
8
P3.1
9
RST /
C2CK
10
P3.0 /
C2D
11
P2.3
Table 6.1. Pin Definitions for EFM8BB2x-QFN28
Description
Multifunction I/O
Crossbar Capability
Additional Digital
Functions
Yes
P0MAT.1
INT0.1
INT1.1
Multifunction I/O
Yes
P0MAT.0
INT0.0
INT1.0
Ground
No Connection
No Connection
Supply Power Input /
5V Regulator Output
5V Regulator Input
Multifunction I/O
Active-low Reset /
C2 Debug Clock
Multifunction I/O /
C2 Debug Data
Multifunction I/O
Yes
P2MAT.3
12
P2.2
Multifunction I/O
Yes
P2MAT.2
13
P2.1
Multifunction I/O
Yes
P2MAT.1
14
P2.0
Multifunction I/O
Yes
P2MAT.0
15
P1.7
Multifunction I/O
Yes
P1MAT.7
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EFM8BB2 Data Sheet
Pin Definitions
Analog Functions
ADC0.1
CMP0P.1
CMP0N.1
AGND
ADC0.0
CMP0P.0
CMP0N.0
VREF
ADC0.23
CP1P.12
CP1N.12
ADC0.22
CP1P.11
CP1N.11
ADC0.21
CP1P.10
CP1N.10
ADC0.20
CP1P.9
CP1N.9
ADC0.15
CP1P.7
CP1N.7
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