Circuit Recommended For The Usb Interface; Usim Card Interface; Overview - Huawei MU709 Series Hardware Manual

HUAWEI MU709 Series HSPA+ Mini PCIe Module
Hardware Guide

3.5.2 Circuit Recommended for the USB Interface

Figure 3-8 Recommended circuit of USB interface

3.6 USIM Card Interface

3.6.1 Overview

The MU709 module provides a USIM card interface complying with the ISO 7816-3
standard and supports both Class B and Class C USIM cards.
Table 3-6 USIM card interface signals
PIN Pin Name Pad
No. Type
14 USIM_RESET O
12 USIM_CLK O
10 USIM_DATA I/O
Description Parameter
V
OH
External USIM
reset signal
V
OL
V
OH
External USIM
clock signal
V
OL
V
IH
V
IL
External USIM
data signal
V
OH
V
OL
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd
Issue 04 (2015-06-25)
Description of the Application Interfaces
Min. (V) Typ. Max. (V)
(V)
0.7 x - 3.3
USIM_PWR
0 - 0.2 x
USIM_PWR
0.7 x - 3.3
USIM_PWR
0 - 0.2 x
USIM_PWR
0.7 x - 3.3
USIM_PWR
0 - 0.2 x
USIM_PWR
0.65 x - 3.3
USIM_PWR
0 - 0.25 x
USIM_PWR
Comments
USIM_PWR=1.8
V or 3.0 V
USIM_PWR=1.8
V or 3.0 V
USIM_PWR=1.8
V or 3.0 V
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