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HUAWEI ME906s LTE M.2 Module
Hardware Guide
Figure 3-21 USB D+ and 3.3V power on timing sequence
3.3V
Power_On_Off
USB D+
Parameter
T
3.6 USIM Card Interface
3.6.1 Overview
The ME906s 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
Pin Name
No.
30
USIM_RESET
Issue 05 (2019-03-25)
Remarks
Power valid to USB D+ high
pd
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.
Pad
Description
Type
O
USIM Reset
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
T
pd
Time (Nominal value)
6
Min.
Typ.
Parameter
(V)
(V)
0.7 x
USIM
V
-
OH
_PW
R
V
0
-
OL
Unit
s
Max.
Comments
(V)
3.3
USIM_PWR
=1.8 V or 3.0
0.2 x
V
USIM
_PW
R
36
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