EFM8UB1 Datasheet, PDF (38/59 Pages) Silicon Laboratories – The EFM8UB1 highlighted features are listed below

6.2 EFM8UB1x-QSOP24 Pin Definitions
P0.2 1
P0.1 2
P0.0 3
GND 4
D+ 5
D- ⁶
VIO ⁷
VDD ⁸
VREGIN ⁹
P3.1 / VBUS ¹⁰
RSTb / C2CK ¹¹
P2.0 / C2D ¹²
24 pin QSOP
(Top View)
24 P0.3
23 P0.4
22 P0.5
21 P0.6
20 P0.7
19 _P1.0
18 _P1.1
17 _P1.2
16 _P1.3
15 _P1.4
14 _P1.5
13 _P1.6
EFM8UB1 Data Sheet
Pin Definitions
Pin
Number
1
Pin Name
P0.2
2
P0.1
Figure 6.2. EFM8UB1x-QSOP24 Pinout
Table 6.2. Pin Definitions for EFM8UB1x-QSOP24
Description
Multifunction I/O
Multifunction I/O
Crossbar Capability
Additional Digital
Functions
Yes
P0MAT.2
INT0.2
INT1.2
Yes
P0MAT.1
INT0.1
INT1.1
Analog Functions
ADC0.2
CMP0P.2
CMP0N.2
ADC0.1
CMP0P.1
CMP0N.1
AGND
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