Quectel RG520N-AT - Pin Description

5G Module Series
RG520N-AT_Hardware_Design 19 / 109
2.5. Pin Description
The following table shows the DC characteristics and pin descriptions.
Table 5: I/O Parameters Definition
DC characteristics include power domain and rate current.
Table 6: Pin Description
1. Keep all RESERVED or unused pins unconnected.
2. All GND pins should be connected to ground.
Type
Description
AI
Analog Input
AO
Analog Output
AIO
Analog Input/Output
DI
Digital Input
DO
Digital Output
DIO
Digital Input/Output
OD
Open Drain
PI
Power Input
PO
Power Output
Power Supply
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
VBAT_BB
235, 236,
238
PI
Power supply for
the module’s
baseband part
Vmax = 4.4 V
Vmin = 3.3 V
Vnom = 3.8 V
NOTE