LTE Standard Module Series
2.3. Pin Assignment
The following figure illustrates the pin assignment of the module.
WAKEUP_IN
AP_READY
RESERVED
W_DISABLE#
NET_MODE
NET_STATUS
VDD_EXT
100
101
102
106
107
111
112
103
104
109
105
110
89
94
98
88
93
97
86
91
96
85
90
95
99
87
92
108
RESERVED
RESERVED
141
142
118
1
2
3
4
5
6
7
8
GND
9
GND
10
USIM_GND
11
12
DBG_TXD
13
USIM_DET
14
USIM_VDD
15
USIM_DATA
16
USIM_CLK
17
USIM_RST
18
RESERVED
DBG_RXD
RESERVED
130
RESERVED
129
RESERVED
117
RESERVED
131
RESERVED
119
132
RESERVED
120
RESERVED
133
RESERVED
121
RESERVED
134
RESERVED
122
RESERVED
135
RESERVED
123
RESERVED
136
RESERVED
124
RESERVED
137
RESERVED
125
RESERVED
138
RESERVED
126
RESERVED
139
127
RESERVED
140
RESERVED
128
RESERVED
1
16
R
ES
ER
VED
1
15
U
S
B
_
B
O
O
T
G
N
D
19
R
ES
ET
_
N
20
PW
R
KEY
21
G
N
D
22
SD
_
D
ET
23
PC
M
_
D
IN
24
P
C
M
_
D
O
U
T
25
PC
M
_
SYN
C
26
PC
M
_
C
LK
27
SD
_
S
D
IO
_
D
AT
A
3
28
SD
_
SD
IO
_
D
AT
A
2
29
SD
_
SD
IO
_
D
AT
A
1
30
SD
_
S
D
IO
_
D
A
TA
0
31
SD
_
SD
IO
_
C
LK
32
SD
_
S
D
IO
_
C
M
D
33
SD
_
SD
IO
_
VD
D
34
AN
T_
DRX
35
G
N
D
36
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
A NT _ M A IN
GND
144
143
54
53
52
51
50
49
48
47
46
GND
45
ADC0
44
43
RESERVED
42
I2C_SDA
41
40
RESERVED
39
38
37
ADC1
I2C_SCL
RESERVED
RESERVED
RESERVED
1
14
R
ES
ER
VED
1
13
R
ES
ER
VED
G
N
D
72
U
SB
_
V
B
US
71
U
SB
_
DM
70
U
SB
_
DP
69
M
A
IN
_
R
X
D
68
67
66
65
64
63
62
ST
AT
U
S
61
60
59
58
57
G
N
D
56
R
ES
ER
VED
55
82
83
84
79
80
81
76
73
77
74
78
75
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
RESER
VED
M
AI
N
_
T
XD
M
AI
N
_
D
T
R
M
AI
N
_
R
T
S
M
A
IN
_
C
T
S
M
AI
N
_
DCD
M
AI
N
_
RI
VBA
T
_
BB
VBA
T
_
BB
V
B
AT
_
RF
VBA
T
_
RF
Si gnal Pi ns
Power Pins
Debug
Main
RESERVED
(U)USIM
SD
ANT
PCM Pi ns
I2C
ADC
USB
RESER
VED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
GND
Figure 1:
Pin Assignment (Top View)
1. USB_BOOT cannot be pulled up before startup.
2. Other unused and RESERVED pins are kept open, and all GND pins are connected to the ground
network.
NOTE