L831-EA Module Hardware User Manual
Page 23 of 43
will be pulled up.
67
RESET#
I
PU
PU
External reset signal input, CMOS
1.8V
68
CLK32K
O
32KHz clock output.
69
CONFIG_1
O
L
L
The internal connects with GND, the
interface type of L831-EA module is
WWAN-SSIC0.
70
+3.3V
PI
The main power input, the voltage
range is : 3.135V ~ 4.4V
71
GND
GND
72
+3.3V
PI
The main power input, the voltage
range is : 3.135V ~ 4.4V
73
GND
GND
74
+3.3V
PI
The main power input, the voltage
range is : 3.135V ~ 4.4V
75
CONFIG_2
O
L
L
The internal connects with GND, the
interface type of L831-EA module is
WWAN-SSIC0.
Note :put the pins not used in circuit design NC directly.
PI
：
Power Input
H
：
High Voltage Level
L
：
Low Voltage Level
PD
：
Pull-Down
PU
：
Pull-Up
T
：
Tristate
OD
：
Open Drain
PP
：
Push-Pull
