Usim Card Interfaces - Quectel SC20-CE User Manual

3.4. USIM Card Interfaces

The Smart EVB has two USIM card interfaces. A suitable USIM card (3V or 1.8V) is required to start the
Smart module. The following figure and table show the simplified interface schematic and pin assignment
of J503.
USIM_VDD
USIM_DATA
USIM_CLK
USIM_ RST
USIM _ DETECT
EVB
Figure 12: Schematic of Simplified USIM Card Interfaces
Smart_EVB_User_Guide
GND
Figure 13: Pins Assignment of USIM Card Holder
Confidential / Released
Push-Push
C1
USIM _ VDD
C7
USIM _ DATA
C3
USIM_CLK
C2
USIM_RST
CD2
USIM_PRE
CD1
USIM_GND
USIM card holder
J 503
LTE Module Series
Smart EVB User Guide
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