U)Sim Interface - Quectel BG772A-GL Hardware Design

A reference circuit is shown in the following figure.
NOTE
VDD_1V8 is provided by an external LDO.

3.9. (U)SIM Interface

BG772A-GL supports 1.8 V (U)SIM card only. The (U)SIM interface circuitry meets ETSI and IMT-2000
requirements.
Table 11: Pin Definition of (U)SIM Interface
Pin
Pin Name
No.
USIM_DET* 44
USIM_VDD 16
USIM_RST 15
USIM_DATA 14
USIM_CLK 13
USIM_GND 65
BG772A-GL_Hardware_Design
Figure 12: Reference Circuit of PON_TRIG
I/O Description
DI/PD (U)SIM card hot-plug detect
PO (U)SIM card power supply
DO/PD (U)SIM card reset
DIO/PU (U)SIM card data
DO/PD (U)SIM card clock
Specified ground for (U)SIM
card
LPWA Module Series
BG772A-GL Hardware Design
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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