Usim Card Interface; Overview; Circuit Recommended For The Usim Card Interface - Huawei MU736 Hardware Manual

HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Parameter
T
pd

3.6 USIM Card Interface

3.6.1 Overview

The MU736 module provides a USIM card interface complying with the ISO 7816-3
standard and supports both 1.8 V and 3.0 V USIM cards.
Table 3-10 USIM card interface signals
Pin
No.
30
32
34
36

3.6.2 Circuit Recommended for the USIM Card Interface

As the MU736 module is not equipped with an USIM socket, you need to place an
USIM socket on the user interface board.
Figure 3-25 shows the circuit of the USIM card interface.
Issue 05 (2014-01-14)
Remarks
Power valid to USB D+ high
The layout design of this circuit on the host board should comply with the USB 2.0 high speed
protocol, with differential characteristic impedance of 90 Ω.
Pin Name I/O
UIM_RESET O
UIM_CLK O
UIM_DATA IO
UIM_PWR PO
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Time(Nominal value)
8
Description
USIM Reset
USIM clock
USIM DATA
USIM POWER
Unit
s
DC Characteristics (V)
Min. Typ. Max.
–0.3
1.8/2.85 1.98/3.0
–0.3
1.8/2.85 1.98/3.0
–0.3
1.8/2.85 1.98/3.0
–0.3
1.8/2.85 1.98/3.0
35