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.
20
Figure 3-4
MU736 power supply time sequence for power cycling
Parameter Remarks
Time(Min.)
Unit
T
off
Power off time
100
ms
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:
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
1.8 V
3.135 V
4.4 V
Power Off
Voltage
Time
Power On
Undefined State
Power Off
Power On
T
off
> 100 ms