Quectel M35 User Manual

GSM/GPRS Module Series
M35 User Manual
M35_User_Manual Confidential / Released 54 / 85
The SIM interfaces are powered by an internal regulator in the module. Both 1.8V and 3.0V SIM Cards
are supported.
Table 17: Pin Definition of the SIM Interfaces
1)
If several interfaces share the same I/O pin, to avoid conflict between these alternate functions, only one
peripheral should be enabled at a time.
Pin NO.
Name
Description
1)
Alternate
Function
27
SIM1_VDD
Supply power for SIM1 card. Automatic detection of
SIM1 card voltage. 3.0V±5% and 1.8V±5%.
Maximum supply current is around 10mA.
30
SIM1_CLK
SIM1 card clock.
29
SIM1_DATA
SIM1 card data I/O.
28
SIM1_RST
SIM1 card reset.
20
SIM1_PRESENCE
SIM1 card detection.
DTR
31
SIM_GND
SIM card ground.
18
SIM2_VDD
Supply power for SIM2 card. Automatic detection of
SIM2 card voltage. 3.0V±5% and 1.8V±5%.
Maximum supply current is around 10mA.
17
SIM2_CLK
SIM2 card clock.
16
SIM2_DATA
SIM2 card data I/O.
25
SIM2_RST
SIM2 card reset.
DCD
NOTE

Quectel M35 Specifications

General

Brand	Quectel
Model	M35
Category	Control Unit
Language	English