SIM Tech SIMCom SIM868 Series - SD Interface; SD reference circuit; I2 C Bus; Pin definition of the I2 C

Smart Machine Smart Decision
SIM868_Series_Hardware_Design_V1.06 40 2017-07-13
For 6-pin SIM card holder, SIMCom recommends to use Amphenol C707 10M006 512 .Customer can visit
http://www.amphenol.com for more information about the holder.
Figure 33: Amphenol C707 10M006 512 SIM card holder
Table 19: Pin description (Amphenol SIM card holder)
Pin name Signal Description
C1 SIM_VDD SIM card power supply
C2
SIM_RST
SIM card reset
C3
SIM_CLK
SIM card clock
C5
GND
Connect to GND
C6 VPP Not connect
C7 S IM_D ATA SIM card data I/O
Note: The interval time of removing and plugging SIM card should be greater than 2s. Otherwise may not
detect correctly.
SIMCOM CONFIDENTIAL FILE