ST Nucleo-64 STM32WL3 Series User Manual page 23

7.10 ST morpho connectors
7.10.1 ST morpho interface and pinout
The ST morpho connectors (CN3 and CN4) are male pin headers accessible on both sides of the board. All MCU
signals are available on the ST morpho connectors. An oscilloscope, logical analyzer, or voltmeter can also probe
these connectors.
ST morpho
Pin
number
1
3
5
7
9
11
13
15
17
19
21
23
25
UM3418 - Rev 1
Figure 14.
(CN3)
Table 10. Pinout of the ST morpho connector (CN3)
Main function
-
-
VDD
BOOT0
SWDIO
SWCLK
-
-
-
GND
-
LD2
OSC_32_IN
ST morpho connector locations
CN3
Pin
MCU pin
number
- 2
- 4
- 6
PA10 8
PA2 10
PA3 12
- 14
- 16
- 18
GND 20
- 22
PB4 24
PB13 (1) 26
Hardware layout and configuration
ST morpho
(CN4)
Main function MCU pin
-
-
5V_EXT
GND
5V_INT
IOREF
NRST NRST
3V3
5V
GND GND
GND
VIN
-
UM3418
-
-
-
-
-
-
-
-
-
-
-
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