Data Sheet
NINA-B40 series - Data sheet
UBX-19049405 - R04 Pin definition Page 19 of 40
C1 - Public
The pin-out for NINA-B40 series modules is shown in Table 6.
No. Name I/O Description nRF52 pin Remarks
1 GPIO_1 I/O General purpose I/O P0.13
2 XL1/GPIO_2 I/O General purpose I/O
Analog function enabled GPIO
Connection for 32.768 kHz
crystal
P0.00 May be used as a GPIO.
If not used ground XL1 and XL2.
If an external clock source is used instead of
a crystal:
Apply external low swing signal to XL1,
ground XL2.
Apply external full swing signal to XL1, leave
XL2 grounded or unconnected.
See the RC-OscillatorConfiguration
AppNote [8]
3 XL2/GPIO_3 I/O General purpose I/O
Analog function enabled GPIO
Connection for 32.76 kHz
crystal
P0.01
4 GPIO_4 I/O General purpose I/O P0.16
5 GPIO_5 I/O General purpose I/O P0.17
6 GND - Ground
7 GPIO_7 I/O General purpose I/O P1.01
1
Standard drive, low frequency GPIO only
8
SWO/TRACE_D0/
GPIO_8
I/O General purpose I/O P1.00 May be used for parallel/serial trace debug
9 VCC_IO I Module I/O level voltage input
Must be connected to VCC on NINA-B1
10 VCC I Module supply voltage input 1.7-3.6 V range
11 SWDCLK I
Serial Wire Debug port clock
signal
SWDCLK
12 GND - Ground
13 ANT I/O Tx/Rx antenna interface 50 Ω nominal characteristic impedance
14 GND - Ground
15 SWDIO I/O
Serial Wire Debug port data
signal
SWDIO
16 GPIO_16 I/O Analog function enabled GPIO
P0.03
1
Standard drive, low frequency GPIO only
Pin is analog capable
17 GPIO_17 I/O Analog function enabled GPIO
P0.28
1
Standard drive, low frequency GPIO only
Pin is analog capable
18 GPIO_18 I/O Analog function enabled GPIO
P0.02
1
Standard drive, low frequency GPIO only
Pin is analog capable
19 RESET_N I/O System reset input P0.18 Active low
20 GPIO_20 I/O Analog function enabled GPIO
P0.31
1
Standard drive, low frequency GPIO only
Pin is analog capable, radio sensitive pin
21 GPIO_21 I/O General purpose I/O P0.23
1
Standard drive, low frequency GPIO only
22 GPIO_22 I/O General purpose I/O P1.05
1
Standard drive, low frequency GPIO only
23 GPIO_23 I/O Analog function enabled GPIO
P0.29
1
Standard drive, low frequency GPIO only
Pin is analog capable
24 GPIO_24 I/O Analog function enabled GPIO
P0.30
1
Standard drive, low frequency GPIO only
Pin is analog capable
25 GPIO_25 I/O Analog function enabled GPIO
P0.04 Pin is analog capable
26 GND - Ground
27 GPIO_27 I/O Analog function enabled GPIO
P0.05 Pin is analog capable
28 NFC1/GPIO_28 I/O NFC pin 1 (default) P0.09 May be used as a GPIO
1
Standard drive, low frequency GPIO only
29 NFC2/GPIO_29 I/O NFC pin 2 (default) P0.10 May be used as a GPIO
1
Standard drive, low frequency GPIO only
30 GND - Ground