Sim Card Interface; Sim1 Card Interface - Quectel M80 User Manual

EVB User Guide

3.4. SIM card interface

3.4.1 SIM1 card interface

Table 7: Pins of SIM card interface
Pin Signal
1 SIM1_PRESENCE
2 SIM1_CLK
3 SIM1_RST
4 SIM1_VDD
5 GND
6 VPP
7 SIM1_DATA
8 SIM_DETECT
M80_EVB_UGD_V1.0
8
7
1
2
Figure 7: SIM1 card interface
I/O
I SIM card detect
O SIM card clock
O SIM card reset
O SIM power
O GND
O SIM card power output
I/O SIM card data I/O
Pulled down GND with external
circuit. When the tray is present,
pin 4 is connected to pin 8.
6 5
3 4
Description Note
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