Pin assignments

This section describes the pin assignment and the pin functions.

This device provides flexibility when it comes to routing and configuration of the GPIO pins. However, some pins have recommendations for how the pin should be configured or what it should be used for. See LGA pin assignments for more information about this.

Pin assignments

The pin assignment table and figure describe the assignments for this variant of the chip.

Figure 1. LGA pin assignments, top view
LGA pin assignments, top view

Table 1. LGA pin assignments
Pin no Pin name Function Description
1 GND_Shield Power Ground
2 P0.05 Digital I/O (SoC) General purpose I/O
3 P0.06 Digital I/O (SoC) General purpose I/O
4 P0.07 Digital I/O (SoC) General purpose I/O
5 GND_Shield Power Ground
6 NC   Not connected/reserved for Nordic use
7 NC   Not connected/reserved for Nordic use
8 NC   Not connected/reserved for Nordic use
9 GND_Shield Power Ground
10 NC   Not connected/reserved for Nordic use
11 NC   Not connected/reserved for Nordic use
12 VDD_GPIO Power GPIO power supply input and logic level
13 IO_SUPPLY Power Reserved for Nordic use
14 GND_Shield Power Ground
15 P0.08 Digital I/O (SoC) General purpose I/O
16 P0.09 Digital I/O (SoC) General purpose I/O
17 GND_Shield Power Ground
18 P0.10 Digital I/O (SoC) General purpose I/O
19 P0.11 Digital I/O (SoC) General purpose I/O
20 P0.12 Digital I/O (SoC) General purpose I/O
21 GND_Shield Power Ground
22 VDD Power Supply voltage input
23

P0.13

AIN0

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

24

P0.14

AIN1

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

25

P0.15

AIN2

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

26

P0.16

AIN3

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

27 GND_Shield Power Ground
28

P0.17

AIN4

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

29

P0.18

AIN5

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

30

P0.19

AIN6

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

31 GND_Shield Power Ground
32 nRESET Digital I/O (SoC) System reset
33 SWDCLK Digital input Serial wire debug clock input for debug and programming
34 SWDIO Digital I/O Serial wire debug I/O for debug and programming
35

P0.20

AIN7

Digital I/O (SoC)

Analog input

General purpose I/O.

Analog input.

36 GND_Shield Power Ground
37

P0.21

TRACECLK

Digital I/O (SoC)

Trace clock

General purpose I/O.

Trace buffer clock (optional).

38

P0.22

TRACEDATA0

Digital I/O (SoC)

Trace data

General purpose I/O.

Trace buffer TRACEDATA[0] (optional).

39

P0.23

TRACEDATA1

Digital I/O (SoC)

Trace data

General purpose I/O.

Trace buffer TRACEDATA[1] (optional).

40

P0.24

TRACEDATA2

Digital I/O (SoC)

Trace data

General purpose I/O.

Trace buffer TRACEDATA[2] (optional).

41 GND_Shield Power Ground
42

P0.25

TRACEDATA3

Digital I/O (SoC)

Trace data

General purpose I/O.

Trace buffer TRACEDATA[3] (optional).

43 SIM_RST Digital I/O (SoC) SIM reset
44 GND_Shield Power Ground
45 SIM_DET Digital I/O (SoC) SIM detect
46 SIM_CLK Digital I/O (SoC) SIM clock
47 GND_Shield Power Ground
48 SIM_IO Digital I/O (SoC) SIM data
49 SIM_1V8 Power SIM 1.8 V power supply output
50 GND_Shield Power Ground
51 NC   Not connected/reserved for Nordic use
52 GND_Shield Power Ground
53 MAGPIO2 Digital I/O (SoC) Reserved for Nordic use
54 MAGPIO1 Digital I/O (SoC) Reserved for Nordic use
55 MAGPIO0 Digital I/O (SoC) Reserved for Nordic use
56 GND_Shield Power Ground
57 VIO Power Reserved for Nordic use
58 SCLK Digital I/O (SoC) Reserved for Nordic use
59 SDATA Digital I/O (SoC) Reserved for Nordic use
60 GND_Shield Power Ground
61 ANT RF Single-ended radio antenna connection
62 GND_Shield Power Ground
63 GND_Shield Power Ground
64 AUX RF ANT output port
65 GND_Shield Power Ground
66 GND_Shield Power Ground
67 GPS RF GPS receiver input
68 NC   Not connected/reserved for Nordic use
69 NC   Not connected/reserved for Nordic use
70 NC   Not connected/reserved for Nordic use
71 NC   Not connected/reserved for Nordic use
72 GND_Shield Power Ground
73 NC   Not connected/reserved for Nordic use
74 GND_Shield Power Ground
75 GND_Shield Power Ground
76 GND_Shield Power Ground
77 GND_Shield Power Ground
78 GND_Shield Power Ground
79 GND_Shield Power Ground
80 GND_Shield Power Ground
81 GND_Shield Power Ground
82 GND_Shield Power Ground
83 P0.26 Digital I/O (SoC) General purpose I/O
84 P0.27 Digital I/O (SoC) General purpose I/O
85 GND_Shield Power Ground
86 P0.28 Digital I/O (SoC) General purpose I/O
87 P0.29 Digital I/O (SoC) General purpose I/O
88 P0.30 Digital I/O (SoC) General purpose I/O
89 P0.31 Digital I/O (SoC) General purpose I/O
90 GND_Shield Power Ground
91 COEX2 Digital I/O (SoC) Coexistence interface
92 COEX1 Digital I/O (SoC) Coexistence interface
93 COEX0 Digital I/O (SoC) Coexistence interface
94 GND_Shield Power Ground
95 P0.00 Digital I/O (SoC) General purpose I/O
96 P0.01 Digital I/O (SoC) General purpose I/O
97 P0.02 Digital I/O (SoC) General purpose I/O
98 GND_Shield Power Ground
99 P0.03 Digital I/O (SoC) General purpose I/O
100 P0.04 Digital I/O (SoC) General purpose I/O
101 ENABLE  

Enable for the SiP internal regulator for the nRF91 SoC.

Note: The nRF91 will not start until this pin is enabled.
102 VDD Power Supply voltage
103 VSS Power Ground
104-127 NC   Not connected/reserved for Nordic use (do not connect)