Product Info

LTE Module Series
EG91 Hardware Design
EG91_Hardware_Design 22 / 93
3.2. Pin Assignment
The following figure shows the pin assignment of EG91 module.
NC
PCM _SY NC
PCM _CL K
PCM _DI N
PCM_DOUT
NC
NC
PW RKEY
1)
NC
RESET_N
RESERVED
1
2
3
4
5
6
7
11
12
13
14
15
16
17
18
50 51 52 53 54
55
58 59 60 61 62
USB_DM
AP _REA DY
ST ATU S
NETLIGHT
DBG_RXD
DBG_TXD
ADC 0
RESERVED
SP I_CL K
SP I_MOSI
SP I_MIS O
VDD _EX T
DTR
GND
USIM1_CLK
USIM1_DATA
USIM1_RST
USIM1_VDD
RI
DCD
CTS
TXD
RXD
VB AT_BB
VB AT_BB
USIM_GND
GND
31 30 29 28 27 26 23 22 21 20 19
10
9
USB_DP
USB_VBUS
NC
GND
NC
NC
RTS
I2C_SCL
I2C_SDA
8
49
48
47
46
45
44
43
40
41
42
39
38
37
36
35
34
33
32
24
57
56
GND
GND
ANT _M AIN
GND GND
NC
VB AT_RF VB AT_RF
GND GND
NC
GND
USIM1_PRESENCE
63
64
65
66
67
68
83
84
85
86
87
88
98
97
96
95
94
93
78
77
76
75
74
73
91 92
89 90
71
72
69
70
80 79
82 81
10 0
99
10 2 10 1
PO WER USB UART
(U)SIM
OTHERS
GND
NC
PCM
ANT
25
USIM2_PRESENCE
USIM2_CLK
USIM2_RST
USIM2_DATA
USIM2_VDD
SP I
USB_BOOT
103
104
105
106
ANT_DIV (EG91-NA/-NS/-V/-EC)
ANT_GNSS (EG91-NA/-NS/-V/-EC)
RESERVED
RESERVED (Pin 49 on EG91-E)
ANT_DI V (EG 9 1-E)
Figure 2:Pin Assignment (Top View)