Quectel SC200L-EM Hardware Design page 35

USIM2_VDD
USIM1_DET
USIM1_RST
USIM1_CLK
USIM1_DATA
USIM1_VDD
SC200L supports (U)SIM card hot-plug via the USIM_DET pin. A reference circuit for (U)SIM interface
with an 8-pin (U)SIM card connector is shown below.
Figure 14: Reference Circuit for (U)SIM Interface with an 8-pin (U)SIM Card Connector
If there is no need to use USIM_DET, please keep this pin open. The following is a reference circuit for
(U)SIM interface with a 6-pin (U)SIM card connector.
SC200L_Hardware_Design
(U)SIM2 card power
21 PO
supply
(U)SIM1 card plug
22 DI
detection
(U)SIM1 card reset
23 DO
signal
(U)SIM1 card clock
24 DO
signal
(U)SIM1 card data
25 IO
signal
(U)SIM1 card power
26 PO
supply
SC200L Hardware Design
Either 1.8V or 2.95V (U)SIM card is
supported.
Active Low. If it is not used, keep it
open.Enabled by
software.It can be multiplexed into
a generic GPIO.
It cannot be multiplexed into a
generic GPIO.
It cannot be multiplexed into a
generic GPIO.
It cannot be multiplexed into a
generic GPIO.
Either 1.8V or 2.95V (U)SIM card is
supported.
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