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HUAWEI ME909 Series LTE LGA Module
Hardware Guide
3.7 USIM Card Interface
3.7.1 Overview
The ME909 module provides a USIM card interface complying with the ISO 7816-3
standard and supports both Class B and Class C USIM cards.
Table 3-9 USIM card interface signals
Pin
No.
88
90
89
34
3.7.2 Circuit Recommended for the USIM Card Interface
As the ME909 module is not equipped with an USIM socket, you need to place an
USIM socket on the user interface board.
Figure 3-15 shows the circuit of the USIM card interface.
Figure 3-15 Circuit of the USIM card interface
Issue V0.3 (2013-05-21)
Pin Name
I/O
Description
SIM_RESET
O
USIM card reset
SIM_CLK
O
USIM card clock
SIM_DATA
I/O
USIM card data
Power supply for
SIM_VCC
P
USIM card
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
DC Characteristics (V)
Min.
Typ.
-
1.8/2.85
-
1.8/2.85
-
1.8/2.85
-
1.8/2.85
Max.
-
-
-
-
34
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- Lga Interface
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