EFM8UB1 Datasheet, PDF (42/59 Pages) Silicon Laboratories – The EFM8UB1 highlighted features are listed below

Pin
Number
3
4
5
6
Pin Name
GND
D+
D-
VDD
7
VREGIN
8
P3.1
9
RST /
C2CK
10
P2.0 /
C2D
11
P1.2
12
GND
13
P1.1
14
P1.0
15
P0.7
16
P0.6
17
P0.5
Description
Crossbar Capability
Additional Digital
Functions
Ground
USB Data Positive
USB Data Negative
Supply Power Input /
5V Regulator Output
5V Regulator Input
Multifunction I/O
Active-low Reset /
C2 Debug Clock
Multifunction I/O /
Yes
C2 Debug Data
Multifunction I/O
Yes
VBUS
P1MAT.2
I2C0_SCL
Ground
Multifunction I/O
Yes
P1MAT.1
I2C0_SDA
Multifunction I/O
Yes
P1MAT.0
Multifunction I/O
Yes
P0MAT.7
INT0.7
INT1.7
Multifunction I/O
Yes
Multifunction I/O
Yes
P0MAT.6
CNVSTR
INT0.6
INT1.6
P0MAT.5
INT0.5
INT1.5
UART0_RX
EFM8UB1 Data Sheet
Pin Definitions
Analog Functions
ADC0.28
ADC0.29
ADC0.10
CMP1P.4
CMP1N.4
ADC0.9
CMP1P.3
CMP1N.3
ADC0.8
CMP1P.2
CMP1N.2
ADC0.7
CMP1P.1
CMP1N.1
CMP0P.7
CMP0N.7
ADC0.6
CMP1P.0
CMP1N.0
CMP0P.6
CMP0N.6
ADC0.5
CMP0P.5
CMP0N.5
silabs.com | Smart. Connected. Energy-friendly.
Rev. 1.1 | 41