U)Sim Interface - Quectel QuecOpen BG952A-GL Hardware Design

3.11. (U)SIM Interface

The module supports 1.8 V (U)SIM card only. The (U)SIM interface circuitry meets ETSI and IMT-2000
requirements.
Table 13: Pin Definition of (U)SIM Interface
Pin
Pin Name
No.
USIM_DET 42
USIM_VDD 43
USIM_RST 44
USIM_DATA 45
USIM_CLK 46
USIM_GND 47
The module supports (U)SIM card hot-plug via USIM_DET, and both high and low level detections are
supported. The function is disabled by default, and see AT+QSIMDET in document [3] for more details.
The following figure shows a reference design of (U)SIM interface with an 8-pin (U)SIM card connector.
Figure 14: Reference Circuit of (U)SIM Interface with an 8-Pin (U)SIM Card Connector
BG952A-GL_QuecOpen_Hardware_Design
I/O Description
DI (U)SIM card hot-plug detect
PO (U)SIM card power supply
DO (U)SIM card reset
DIO (U)SIM card data
DO (U)SIM card clock
Specified ground for (U)SIM
card
LPWA Module Series
Comment
1.8 V power domain.
Only 1.8 V (U)SIM card is
supported.
1.8 V power domain.
1.8 V power domain.
1.8 V power domain.
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