Smart Wi-Fi Module Series
SC20-WL Hardware Design
SC20-WL_Hardware_Design
26 / 81
MCLK
camera
V
OH
min=1.35V
CAM1_
MCLK
75
DO
Clock signal of front
camera
V
OL
max=0.45V
V
OH
min=1.35V
CAM0_RST 79
DO
Reset signal of rear
camera
V
OL
max=0.45V
V
OH
min=1.35V
CAM0_
PWD
80
DO
Power down signal
of rear camera
V
OL
max=0.45V
V
OH
min=1.35V
CAM1_RST 81
DO
Reset signal of front
camera
V
OL
max=0.45V
V
OH
min=1.35V
CAM1_PW
D
82
DO
Power down signal
of front camera
V
OL
max=0.45V
V
OH
min=1.35V
CAM_I2C_
SCL
83
OD
I2C clock signal of
camera
1.8V power
domain.
CAM_I2C_
SDA
84
OD
I2C data signal of
camera
1.8V power
domain.
Keypad Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
PWRKEY
114
DI
Turn on/off the
module
V
IL
max=0.63V
V
IH
min=1.17V
Pull-up to 1.8V
internally.
Active low.
KEY_VOL_
UP
95
DI
Volume up
V
IL
max=0.63V
V
IH
min=1.17V
If unused, keep this
pin open.
KEY_VOL_
DOWN
96
DI
Volume down
V
IL
max=0.63V
V
IH
min=1.17V
If unused, keep this
pin open.
SENSOR_I2C Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
SENSOR_
I2C_SCL
91
OD
I2C clock signal of
external sensor
1.8V power
domain.
SENSOR_
I2C_SDA
92
OD
I2C data signal of
external sensor
1.8V power
domain.
ADC Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
ADC
128
AI
General purpose
ADC
Maximum voltage
not exceeding 1.7V.
VBAT_SNS
133
AI
Input voltage sense
Maximum input
voltage is 4.5V.