EFM8BB3 Datasheet, PDF (35/70 Pages) Silicon Laboratories – The EFM8BB3 device family are fully integrated, mixed-signal system-on-a-chip MCUs. Highlighted features are listed below

Pin
Number
28
Pin Name
P0.5
29
P0.4
30
P0.3
31
P0.2
32
P0.1
Center
GND
Description
Multifunction I/O
Multifunction I/O
Multifunction I/O
Multifunction I/O
Multifunction I/O
Ground
Crossbar Capability
Yes
Yes
Yes
Yes
Yes
Additional Digital
Functions
P0MAT.5
INT0.5
INT1.5
UART0_RX
CLU0B.10
CLU1A.9
P0MAT.4
INT0.4
INT1.4
UART0_TX
CLU0A.10
CLU1A.8
P0MAT.3
EXTCLK
INT0.3
INT1.3
CLU0B.9
CLU2B.10
CLU3A.9
P0MAT.2
INT0.2
INT1.2
CLU0OUT
CLU0A.9
CLU2B.8
CLU3A.8
P0MAT.1
INT0.1
INT1.1
CLU0B.8
CLU2A.9
CLU3B.9
EFM8BB3 Data Sheet
Pin Definitions
Analog Functions
ADC0.3
CMP0P.3
CMP0N.3
ADC0.2
CMP0P.2
CMP0N.2
XTAL2
XTAL1
ADC0.1
CMP0P.1
CMP0N.1
ADC0.0
CMP0P.0
CMP0N.0
AGND
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