Power Interface; Overview; Power Supply 3.3V Interface - Huawei ME936 Hardware Manual

HUAWEI ME936 LTE M.2 Module
Hardware Guide

3.3 Power Interface

3.3.1 Overview

The power supply part of the ME936 module contains:


Table 3-2 lists the definitions of the pins on the power supply interface.
Table 3-2 Definitions of the pins on the power supply interface
Pin No. Pin Name
2, 4, 70, 72, 74 3.3V
36 UIM_PWR
3, 5, 11, 27,
Ground
33, 39, 45, 51,
57, 71, 73

3.3.2 Power Supply 3.3V Interface

When the ME936 module works normally, power is supplied through the 3.3V pins
and the voltage ranges from 3.135 V to 4.4 V (typical value is 3.3 V). The ME936
provides 5 power pins, and 11 Ground pins. To ensure that the ME936 module works
normally, all these pins must be connected. The M.2 connector pin is defined to
support 500 mA/Pin continuously.
When the ME936 module works at GSM mode, the module transmits at the
maximum power, the transient peak current may reach 2.5 A (with a highly
Issue 03 (2017-12-11)
I indicates pins for digital signal input; O indicates pins for digital signal output; PI indicates

power input pins; PO indicates power output pins.
 Low-level Input voltage;
V
IL:
High-level Output voltage.
 The NC pins are not connected, therefore, before you deal with these pins, please refer to
the corresponding hardware guide.
 The Reserved pins are internally connected to the module. Therefore, these pins should
not be used, otherwise they may cause problems. Please contact with us for more details
about this information.
3.3V pins for the power supply
UIM_PWR pin for USIM card power output
Pad
Description
Type
Power supply for
PI ME936, 3.3 V is
recommended
P USIM POWER
PI Ground
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Description of the Application Interfaces
High-level Input voltage;
V
IH:
Parameter
-
-
-
-
Low-level Output voltage;
V
OL:
Min.( Typ.( Max.(
V) V) V)
3.135 3.3 4.4
1.75 1.8 1.98
2.75 2.85 3.3
- 0 -
V
OH:
Comments
-
UIM_PWR
=1.8 V
UIM_PWR
=2.85 V
-
18