LPWA Module Series
BG950A-GL&BG951A-GL_Hardware_Design
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Table 6: Pin Description
Power Supply
Pin Name
Pin
No.
I/O
Description
DC Characteristics Comment
VBAT_BB
32
PI
Power supply for the
module’s baseband part
Vmax = 4.35 V
Vmin = 2.2 V
Vnom = 3.3 V
See NOTE 1.
VBAT_RF
33
PI
Power supply for the
module’s RF part
See NOTE 1.
VDD_EXT
29
PO
Provide 1.8 V for
external circuits
Vnom = 1.8 V
I
O
max = 50 mA
If unused, keep this
pin open.
GND
3, 31, 48, 50, 54, 55, 58, 59, 61, 62, 67–74, 79–82, 89–91, 100–102
Turn on/off
Pin Name
Pin
No.
I/O
Description
DC Characteristics Comment
PWRKEY
15
DI
Turn on/off the module
V
IL
max = 0.3 V
V
IH
min = 1.0 V
Internally pulled up
with a 470 kΩ
resistor.
Reset
Pin Name
Pin
No.
I/O
Description
DC Characteristics Comment
RESET_N
17
DI
Reset the module
V
IL
max = 0.3 V
V
IH
min = 1.3 V
Internally pulled up
with a 470 kΩ
resistor.
Status Indication
Pin Name
Pin
No.
I/O
Description
DC Characteristics Comment
PSM_IND
1
DO
Indicate the module’s
power saving mode
V
OL
max = 0.36 V
V
OH
min = 1.44 V
1.8 V power
domain.
If unused, keep
these pins open.
STATUS
20
DO
Indicate the module’s
operation status
NET_STATUS
21
DO
Indicate the module’s
network activity status
USB Interface
*
Pin Name
Pin
No.
I/O
Description
DC Characteristics Comment
USB_VBUS
8
AI
USB connection detect
Vnom = 5.0 V
Typical 5.0 V
USB_DP
9
AIO
USB differential data (+)
Vmax = 4.1 V
Vmin = -0.2 V
Compliant with USB
2.0 standard
specification.
USB_DM
10
AIO
USB differential data (-)
