M20 Hardware Design
Table 21: Pin description (Amphenol SIM card holder)
Name Pin Function
SIM_VDD C1 SIM Card Power supply
SIM_RST C2 SIM Card Reset.
SIM_CLK C3 SIM Card Clock.
GND C5 Ground
VPP C6 Not connect.
SIM_DATA C7 SIM Card data I/O.
For 8-pin SIM card holder, it is recommended to use Molex 91228.Please visit
http://www.molex.com
for more information.
Figure 36: Molex 91228 SIM card holder
Table 22: Pin description (Molex SIM card holder)
Name Pin Function
SIM_VDD C1 SIM Card Power supply
SIM_RST C2 SIM Card Reset
SIM_CLK C3 SIM Card Clock
M20_HD_V1.01 - 58 -
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