Data Sheet

NINA-B40 series - Data sheet
UBX-19049405 - R04 Pin definition Page 20 of 40
C1 - Public
No. Name I/O Description nRF52 pin Remarks
31 VBUS I USB interface 5 V input VBUS Is required for USB interface to work
32 TRACE_D2/GPIO_32 I/O General purpose I/O P0.11 May be used for parallel trace debug
33 TRACE_D3/GPIO_33 I/O General purpose I/O P1.09 May be used for parallel trace debug
34 GPIO_34 I/O General purpose I/O P0.14
35 GPIO_35 I/O General purpose I/O P1.04
1
Standard drive, low frequency GPIO only
36 GPIO_36 I/O General purpose I/O P1.02
1
Standard drive, low frequency GPIO only
37 GPIO_37 I/O General purpose I/O P1.06
1
Standard drive, low frequency GPIO only
38 GPIO_38 I/O General purpose I/O P0.25
1
Standard drive, low frequency GPIO only
39 GPIO_39 I/O General purpose I/O P1.07
1
Standard drive, low frequency GPIO only
40 GPIO_40 I/O General purpose I/O P0.19
1
Standard drive, low frequency GPIO only
41 GPIO_41 I/O General purpose I/O P1.03
1
Standard drive, low frequency GPIO only
42 GPIO_42 I/O General purpose I/O P0.26
43 GPIO_43 I/O General purpose I/O P0.15
44 GPIO_44 I/O General purpose I/O P0.27
45 TRACE_CLK/GPIO_45 I/O General purpose I/O P0.07
May be used for parallel or serial trace
debug
46 TRACE_D1/GPIO_46 I/O General purpose I/O P0.12 May be used for parallel trace debug
47 GPIO_47 I/O General purpose I/O P0.06
48 GPIO_48 I/O General purpose I/O P0.21
49 GPIO_49 I/O General purpose I/O P0.22
50 GPIO_50 I/O General purpose I/O P0.20
51 GPIO_51 I/O General purpose I/O P1.08
52 GPIO_52 I/O General purpose I/O P0.08
53 GND - Ground
54 USB_DP I/O USB differential data signal USB_DP
55 USB_DM I/O USB differential data signal USB_DM
EGP - Exposed Ground Pins
The exposed pins in the center of the
module should be connected to GND
EAGP -
Exposed Antenna Ground
Pins
The exposed pins underneath the antenna
area should be connected to GND
Table 6: NINA-B40 series pin-out
1
It is advisable to keep frequencies below 10 kHz, and only use standard drive strength on these digital pins.