Sim Card Slot; Tag Connector; Table 6. Sim Card Slot; Figure 9. Tag Connector - STMicroelectronics B-L462E-CELL1 User Manual

8.2

SIM card slot

CN2 is a micro-SIM card slot.
The SIM card slot only supports micro-SIM cards and it supports card detect function which can detect the
presence of the SIM card. When the SIM-card exists, the CD signal pin is floating. Otherwise, the signal pin
is pulled down. As R8 is soldered, the floating state is replaced by the pull-up state. Only a Class-C SIM card
handling 1.8V is supported.
Connector
CN2
8.3

Tag connector

CN3 is a tag connector that provides a direct debug port for the MCU.
The tag connector is implemented on the B-L462E-CELL1 board. The tag connector is a 10-pin footprint
supporting SWD mode, which is shared with the same signals as ST-LINK.
The TC2050-IDC-NL cable is used to link ST-LINK and tag connector on the B-L462E-CELL1 Discovery kit for
IoT nodes, so that the STM32L4 in the module can be easily programmed and debugged without any extra
accessory.
UM2743 - Rev 1
Table 6. SIM card slot
Pin number Pin name
1 CD
2 GND
3 GND
4 GND
5 GND
C1 VCC
C2 RST
C3 CLK
C5 GND
C6 VPP
C7 I/O
Figure 9. Tag connector
SIM card slot
Signal name Function
SIM_DETECT SIM card detection
- Power
- Power
- Power
- Power
VDD_SIM Power
SIM_RST SIM RST
SIM_CLK SIM clock
- Power
VDD_SIM Power
SIM_DATA SIM data
UM2743
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