UMTS/HSDPA Module
UC15 Hardware Design
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3.11.2. Design Considerations for USIM
Card
Holder
For 8-pin USIM card holder, it is recommended to use Molex 91228. Please
Figure 25: Molex 91228 USIM Card Holder
Table 16: Pin Description of Molex USIM Card Holder
Name
Pin
Function
VDD
C1
USIM card power supply.
RST
C2
USIM card reset.
CLK
C3
USIM card clock.
/ C4
Not
defined.
GND C5
Ground.
VPP C6
Not
connected.
DATA I/O
C7
USIM card data.
/ C8
Pull-down GND with external circuit. When the tray is present, C4
is connected to C8.