Pin Assignment - Quectel EG91 Series Hardware Design

The following figure shows the pin assignment of EG91 module.
103
NC
NC
GND
PCM_CLK
PCM_SYNC
PCM_DIN
PCM_DOUT
USB_VBUS
USB_DP
USB_DM
NC
NC
NC
NC
PWRKEY 1)
NC
RESET_N
RESERVED
104
POWER USB UART
EG91_Hardware_Design

3.2. Pin Assignment

1
2
82
3
4
102
5
63 83
USIM2_PRESENCE
6
7
64 84
USIM2_CLK
8
9
65 85
USIM2_RST
10
66 86
USIM2_DATA
11
67 87
USIM2_VDD
12
13
68 88
14
89
15
16
69
17
18
PCM
(U)SIM
Figure 2:Pin Assignment (Top View)
81 80 79
100
101
99
98 78
97 77
96 76
95 75
USB_BOOT
94 74
93 73
91 92
90
71
70 72
SPI GND
ANT
22 / 93
LTE Module Series
EG91 Hardware Design
106
ANT_GNSS (EG91-NA/-NS/-V/-EC)
49
ANT_DIV (EG91-E)
48
GND
47
USIM_GND
46
USIM1_CLK
45
USIM1_DATA
44
USIM1_RST
43
USIM1_VDD
42
USIM1_PRESENCE
41
I2C_SDA
40
I2C_SCL
39
RI
38
DCD
37
RTS
36
CTS
35
TXD
34
RXD
33
VBAT_BB
32
VBAT_BB
105
NC OTHERS
RESERVED