Huawei ME909u-521 - Page 22

HUAWEI ME909u-521 LTE LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
22
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
103
NC
-
Not connected,
please keep this
pin open
-
-
-
-
-
104
Reserved
-
Reserved, must
keep this pin open
-
-
-
-
-
105
GPIO
I/O
General Purpose
I/O pins. The
function of these
pins has not been
defined.
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-
V
IH
1.17
1.8
2.1
-
V
IL
–0.3
-
0.63
-
106
GND
-
Ground
-
-
-
-
-
107
MAIN_ANT
-
RF primary
antenna pad
-
-
-
-
-
108
GND
-
Ground
-
-
-
-
-
109
GPIO
I/O
General Purpose
I/O pins. The
function of these
pins has not been
defined
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-
V
IH
1.17
1.8
2.1
-
V
IL
–0.3
-
0.63
-
110
GND
-
Ground
-
-
-
-
-
111
GPS_ANT
-
GPS antenna pad
-
-
-
-
-
112
GND
-
Ground
-
-
-
-
-
113
GPIO
I/O
General Purpose
I/O pins. The
function of these
pins has not been
defined
V
OH
1.35
1.8
1.8
-
V
OL
0
-
0.45
-
V
IH
1.17
1.8
2.1
-
V
IL
–0.3
-
0.63
-
114
GND
-
Ground
-
-
-
-
-
115
AUX_ANT
-
RF secondary
antenna pad
-
-
-
-
-
116
GND
-
Ground
-
-
-
-
-
117
NC
-
Not connected,
please keep this
pin open
-
-
-
-
-
118
NC
-
Not connected,
please keep this
pin open
-
-
-
-
-