User Manual

- 27 -
CL5ADAH2Z
Confidential
2020.11.05 rev.1.1
3.5. USIM Card Interface
The USIM interface can be used either for USIM socket, and for eSIM.
The module supports Class C (1.8V).
For 3.0V USIM cards support, an external voltage translator will be required.
To achieve ultra-low power consumption, SIM power will be off during DH2 mode.
The USIM input/output lines are following USIM specifications.
As the module is not equipped with an USIM card adapter, you need to place an USIM/eSIM card
adapter on the user interface board.
Figure10 is recommended circuit for using USIM card adapter.
Figure11 is recommended circuit for using eSIM. (Refer to eSIM datasheet for detail of circuit.)
If you want to use both USIM card adapter and eSIM, please use switch circuit. (Refer to circuit of
EVB for detail.)
Figure10 recommended circuit for USIM card adapter
Figure11 recommended circuit for eSIM