Huawei MU736 - USIM Card Interface; Overview; Circuit Recommended for the USIM Card Interface

HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Description of the Application Interfaces
Issue 05 (2014-01-14)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
35
Parameter
Remarks
Time(Nominal value)
Unit
Tpd
Power valid to USB D+ high
8
s
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.
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.
Pin Name
I/O
Description
DC Characteristics (V)
Min.
Typ.
Max.
30
UIM_RESET
O
USIM Reset
–0.3
1.8/2.85
1.98/3.0
32
UIM_CLK
O
USIM clock
–0.3
1.8/2.85
1.98/3.0
34
UIM_DATA
IO
USIM DATA
–0.3
1.8/2.85
1.98/3.0
36
UIM_PWR
PO
USIM POWER
–0.3
1.8/2.85
1.98/3.0
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.