Smart Machine Smart Decision
SIM868_Series_Hardware_Design_V1.06 39 2017-07-13
5.8.3. Design Considerations for SIM Card Holder
For 8-pins SIM card holder, SIMCom recommends to use Molex 91228. Customer can visit
http://www.molex.com for more information about the holder.
Figure 32: Molex 91228 SIM card holder
Table 18: Pin description (Molex SIM card holder)
Pin name Signal Description
C1 SIM_VDD SIM card power supply
C2 SIM_RST SIM card reset
C5 GND Connect to GND
C6 VPP Not connect
C7 SIM _DATA SIM card data I/O
C8 SIM_DET Detect SIM card presence
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