U)Sim Interfaces - Quectel SC690A Series Hardware Design

4.3. (U)SIM Interfaces

The module provides two (U)SIM interfaces which meet ETSI and IMT-2000 requirements. Dual SIM
Dual Standby is supported by default. Either 1.8 V or 2.95 V (U)SIM card is supported, and the (U)SIM
interfaces are powered by the dedicated low dropout regulators in the module.
Table 14: Pin Definition of (U)SIM Interface
Pin Name
USIM1_VDD
USIM1_DATA
USIM1_CLK
USIM1_RST
USIM1_DET
USIM2_VDD
USIM2_DATA
USIM2_CLK
USIM2_RST
USIM2_DET
SC690A_Series_Hardware_Design
Pin No. I/O
141 PO
142 DIO
143 DO
144 DO
145 DI
210 PO
209 DIO
208 DO
207 DO
256 DI
Description
(U)SIM1 card power supply
(U)SIM1 card data
(U)SIM1 card clock
(U)SIM1 card reset
(U)SIM1 card hot-plug detect
(U)SIM2 card power supply
(U)SIM2 card data
(U)SIM2 card clock
(U)SIM2 card reset
(U)SIM2 card detect
Smart Module Series
Comment
Either 1.8 V or 2.95 V
(U)SIM card is supported.
Active Low.
Require external pulled up
to 1.8 V.
If unused, keep this pin
open.
Disabled by default, and
can be enabled through
software configuration.
Either 1.8 V or 2.95 V
(U)SIM card is supported.
Active Low.
Require external pulled up
to 1.8 V.
If unused, keep this pin
open.
Disabled by default, and
can be enabled through
software configuration.
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