Usim Power Output Uim_Pwr; Signal Control Interface; Overview - Huawei MU736 Hardware Manual

HUAWEI MU736 HSPA+ M.2 Module
Hardware Guide
Figure 3-4 MU736 power supply time sequence for power cycling
Voltage
3.135 V
Parameter
T
off

3.3.3 USIM Power Output UIM_PWR

Output power supply interface is UIM_PWR. Through the UIM_PWR power supply
interface, the MU736 module can supply 1.8 V or 2.85 V power to UIM card. The max
current can reach 200 mA, so special attention on PCB design should be taken at the
host side.

3.4 Signal Control Interface

3.4.1 Overview

The signal control part of the interface in the MU736 module consists of the following:
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Issue 05 (2014-01-14)
Power Off
4.4 V
Undefined State
1.8 V
Remarks
Power off time
Power On/Off (Power_On_Off) pin
System reset (RESET#) pin
LED control (LED#) pin
WWAN disable control (W_DISABLE#) pin
GPS disable control (GPS_DISABLE#) pin
Wake signal out from module (Wake_On_WWAN#) pin
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Power On
Power On
Power Off
T > 100 ms
off
Time
Time(Min.)
100
Unit
ms
20