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HUAWEI MC509 CDMA LGA Module
Hardware Guide
Description of the Application Interfaces
Issue 01 (2011-04-08)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
35
3.7 UIM Card Interface
3.7.1 Overview
The MC509 module provides a UIM card interface complying with the ISO 7816-3
standard and supports automatic detection of a 3.0V UIM card or a 1.8V UIM card.
Table 3-11 lists the UIM card interface signals.
Table 3-11 UIM card interface signals
Pin No.
Pin Name
I/O
Description
DC Characteristics (V)
Min
Typical
Max
34
UIM_VCC
O
Power source for the
external UIM.
-0.3
1.8/2.85
2.1/3.15
89
UIM_DATA
I/O
External UIM data
signal.
-0.3
1.8/2.85
2.1/3.15
90
UIM_CLK
O
External UIM clock
signal.
-0.3
1.8/2.85
2.1/3.15
88
UIM_RESET
O
External UIM reset
signal.
-0.3
1.8/2.85
2.1/3.15
3.7.2 Circuit Recommended for the UIM Card Interface
As the MC509 module is not equipped with a UIM card socket, a UIM card socket
need to be placed on the user interface board. The UIM card signals are transmitted
outwards through the 145-pin LGA interface. Figure 3-9 shows the circuit of the UIM
card interface.