Table 17: Pin Definition Of The Sim Interfaces - Quectel M35 User Manual

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

Pin NO. Name
27 SIM1_VDD
30 SIM1_CLK
29 SIM1_DATA
28 SIM1_RST
20 SIM1_PRESENCE
31 SIM_GND
18 SIM2_VDD
17 SIM2_CLK
16 SIM2_DATA
25 SIM2_RST
NOTE
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.
M35_User_Manual
Description
Supply power for SIM1 card. Automatic detection of
SIM1 card voltage.
Maximum supply current is around 10mA.
SIM1 card clock.
SIM1 card data I/O.
SIM1 card reset.
SIM1 card detection.
SIM card ground.
Supply power for SIM2 card. Automatic detection of
SIM2 card voltage.
Maximum supply current is around 10mA.
SIM2 card clock.
SIM2 card data I/O.
SIM2 card reset.
Confidential / Released
GSM/GPRS Module Series
3.0V±5% and 1.8V±5%.
3.0V±5% and 1.8V±5%.
M35 User Manual
1)
Alternate
Function
DTR
DCD
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