Quectel EC200T Series Hardware Design page 27

Module
GND
USIM_VDD
USIM_RST
USIM_CLK
USIM_DET
USIM_DATA
Figure 4: Reference Circuit of (U)SIM Interface with an 8-pin (U)SIM Card Connector
If (U)SIM card detection function is not needed, please keep USIM_DET unconnected. A reference circuit
for (U)SIM interface with a 6-pin (U)SIM card connector is illustrated in the following figure.
Module
GND
USIM_VDD
USIM_RST
USIM_CLK
USIM_DATA
Figure 5: Reference Circuit of (U)SIM Interface with a 6-pin (U)SIM Card Connector
In order to enhance the reliability and availability of the (U)SIM card in customers' applications, please
follow the criteria below in (U)SIM circuit design:
EC200T_Series_Mini_PCIe_Hardware_Design
USIM_VDD
15K
0R
0R
0R
33 pF 33 pF 33 pF
GND
USIM_VDD
15K
0R
0R
0R
33 pF 33 pF 33 pF
GND
LTE Standard Module Series
EC200T Series Mini PCIe Hardware Design
(U)SIM Card Connector
VCC
RST
CLK
GND
100 nF
(U)SIM Card Connector
VCC
RST
CLK
GND
100 nF
GND
VPP
IO
GND
GND
VPP
IO
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