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Table 5: Pin Description
Power Supply
Pin Name
Pin No.
VBAT_BB
19
VBAT_RF
20
VDD_EXT
21
GND
22–25, 27, 28, 30, 31, 43, 47, 52–56, 58, 66, 73–75, 84–86, 88, 89
Turn on/off
Pin Name
Pin No.
PWRKEY*
46
Reset
Pin Name
Pin No.
RESET_N
45
Status Indication
Pin Name
Pin No.
STATUS
78
NET_STATUS*
79
USB Interface*
Pin Name
Pin No.
USB_VBUS
12
BG772A-GL_Hardware_Design
I/O
Description
Power supply for
PI
the module's
baseband part
Power supply for
PI
the module's RF
part
Provide 1.8 V for
PO
external circuit
I/O
Description
Turn on/off the
DI/PU
module
I/O
Description
DI/PU
Reset the module
I/O
Description
Indicate the
DO/PD
module's operation
status
Indicate the
DO/PU
module's network
activity status
I/O
Description
USB connection
AI
detect
LPWA Module Series
BG772A-GL Hardware Design
DC
Comment
Characteristics
Vmax = 4.35 V
Vmin = 2.2 V
Refer to NOTE 1
Vnom = 3.3 V
Vmax = 4.2 V
Vmin = 3.1 V
Refer to NOTE 1
Vnom = 3.3 V
Vnom = 1.8 V
If this pin is unused,
I
max = 50 mA
keep it open.
O
DC
Comment
Characteristics
V
max = 0.3 V
IL
V
min = 1.0 V
IH
DC
Comment
Characteristics
V
max = 0.3 V
IL
V
min = 1.3 V
IH
DC
Comment
Characteristics
1.8 V
If this pin is unused,
keep it open.
1.8 V
DC
Comment
Characteristics
V
max = 2.0 V
IH
V
min = 1.19 V
IH
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