Quectel M20

M20 EVB User Guide
3.3. SIM card interface
Figure 6: SIM card interface
Table 5: Pins of SIM card interface
Pin Signal I/O Description
1 SIM_DATA I/O SIM card data I/O
2 GND
3 SIM_CLK O SIM card clock
4 SIM_RST O SIM card reset
5 SIM_VDD O SIM card power output
6 SIM_PRESENCE I SIM card detection
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