EFM8UB2 Datasheet, PDF (28/50 Pages) Silicon Laboratories – The EFM8UB2 highlighted features are listed below

Pin
Number
5
6
Pin Name
D-
VDD
7
VREGIN
8
VBUS
9
RST /
C2CK
10
P3.0 /
C2D
11
P2.7
12
P2.6
13
P2.5
14
P2.4
15
P2.3
16
P2.2
17
P2.1
18
P2.0
19
P1.7
Description
Crossbar Capability
Additional Digital
Functions
USB Data Negative
Supply Power Input /
5V Regulator Output
5V Regulator Input
USB VBUS Sense Input
Active-low Reset /
C2 Debug Clock
Multifunction I/O /
Yes
C2 Debug Data
Multifunction I/O
Yes
VBUS
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
Multifunction I/O
Yes
EFM8UB2 Data Sheet
Pin Definitions
Analog Functions
ADC0P.16
ADC0N.16
ADC0P.15
ADC0N.15
ADC0P.14
ADC0N.14
ADC0P.13
ADC0N.13
CMP0N.3
ADC0P.12
ADC0N.12
CMP0P.3
ADC0P.11
ADC0N.11
CMP1N.2
ADC0P.10
ADC0N.10
CMP1P.2
ADC0P.9
ADC0N.9
CMP0N.2
ADC0P.8
ADC0N.8
CMP0P.2
ADC0P.7
ADC0N.7
CMP1N.1
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