HUAWEI MU709 Series HSPA+ LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 09 (2017-12-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
18
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comments
50
GND
-
Ground
-
-
-
-
-
51
GPIO2
I/O
General Purpose I/O
pins.
V
OH
1.35
1.8
2.1
The function of
this pin has not
been defined.
V
OL
0
-
0.45
V
IH
1.26
1.8
2.1
V
IL
–0.3
-
0.63
52
GND
-
Ground
-
-
-
-
-
53
NOT USED
-
Do not design PAD
-
-
-
-
-
54
GND
-
Ground
-
-
-
-
-
55
GPIO5/USIM
Switch
I/O
General Purpose I/O pins
(Default) or USIM Switch
control signal.
V
OH
1.35
1.8
2.1
The function of
this pin can be
defined as GPIO
or USIM Switch,
while the USIM
Switch should
be enabled by
AT command.
V
OL
0
-
0.45
V
IH
1.26
1.8
2.1
V
IL
–0.3
-
0.63
56
GND
-
Ground
-
-
-
-
-
57
NOT USED
-
Do not design PAD
-
-
-
-
-
58
GND
-
Ground
-
-
-
-
-
59
GND
-
Ground
-
-
-
-
-
60
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
61
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
62
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
63
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
64
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
65
Reserved
-
Reserved, please keep
this pin open.
-
-
-
-
-
66
SD_DATA3
I/O
SD Card data signal.
Only used for debugging.
Please reserve the test
point.
V
OH
2.25
3.0
3.3
-
V
OL
0
-
0.75
-
V
IH
2.1
3.0
3.3
-
V
IL
–0.3
-
1.05
-