Huawei ME909s Series - Page 15

HUAWEI ME909s Series LTE Mini PCIe Module
Hardware Guide
Description of the Application Interfaces
Issue 02 (2016-09-07)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
15
Pin
No.
Pin Name
Pad
Type
Description
Parameter
Min.
(V)
Typ.
(V)
Max.
(V)
Comment
Mini PCI
Express
Standard
Description
HUAWEI
Pin
Description
V
OL
0
-
0.2 x
USI
M_P
WR
13
REFCLK+
NC
-
Not connected
-
-
-
-
-
14
UIM_RESE
T
USIM_RES
ET
O
USIM card reset
V
OH
0.7 x
USI
M_P
WR
-
3.3
USIM_PWR
=1.8 V or
3.0 V
V
OL
0
-
0.2 x
USI
M_P
WR
15
GND
GND
-
Ground
-
-
-
-
-
16
UIM_Vpp
NC
-
Not connected
-
-
-
-
-
17
Reserved
UART_RX
I
UART receive data
input
V
IH
1.17
1.8
1.98
-
V
IL
–0.3
-
0.63
-
18
GND
GND
-
Ground
-
-
-
-
-
19
Reserved
UART_TX
O
UART transmit
output
V
OH
1.35
1.8
1.98
-
V
OL
0
-
0.45
-
20
W_DISABL
E#
Reserved
-
Reserved
-
-
-
-
-
21
GND
GND
-
Ground
-
-
-
-
-
22
PERST#
RESIN_N
I
Reset module
Active-low
V
IL
0
0
0.18
The signal is
internally
pulled up.
V
IH
1.62
1.8
1.98
23
PERn0
NC
-
Not connected
-
-
-
-
-
24
3.3Vaux
VCC_3V3
PI
3.8 V DC supply
input
-
3.2
3.8
4.2
-
25
PERp0
NC
-
Not connected
-
-
-
-
-
26
GND
GND
-
Ground
-
-
-
-
-
27
GND
GND
-
Ground
-
-
-
-
-
28
1.5 V
NC
-
Not connected
-
-
-
-
-