Sim Card Interface - Quectel M16 EVB User Manual

M16 EVB User Guide

3.3. SIM card interface

Table 6: Pins of SIM card interface
Pin Signal
1 SIM_GND
2
3 SIM_DATA
4 SIM_CLK
5 SIM_RST
6 SIM_VDD
7 SIM_DETECT
8 SIM_PRESENCE
In Figure 5, the pin SIM_PRESENCE is used to detect whether the tray of the Molex SIM socket,
which is used for holding SIM card, is present in the card socket. When the tray is inserted in the
socket, SIM_PRESENCE is at high level. For more details, please refer to Document [3].
M16_EVB_UGD_V1.01
Figure 5: SIM card interface
I/O
VPP
I/O
O
O
O
I
Description
Ground
Not connected
SIM card data I/O
SIM card clock
SIM card reset
SIM card power output
Pulled up to VDD_EXT
SIM card detection
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