Smart Module Series
SC690A_Series_Hardware_Design 27 / 105
SD_DET
64
DI
SD card hot-plug
detect
Active low.
SD_LDO22
63
PO
SD card power
supply
Vnom = 2.95 V
I
O
max = 600 mA
SD_LDO5
179
PO
1.8/2.95 V output
power for SD card
pull-up circuits
Vnom = 1.8/2.95 V
I
O
max = 50 mA
Touch Panel Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
TP_RST
138
DO
TP reset
1.8 V power
domain.
TP_INT
139
DI
TP interrupt
TP_I2C_SCL
140
OD
TP I2C clock
TP_I2C_SDA
206
OD
TP I2C data
LCM Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
LCD_BIAS_P
21
PO
LCD display bias
(+)
Vnom = 5.5 V
Vmin = 4.0 V
Vmax = 6.0 V
Positive LCD
regulated output.
LCD_BIAS_N
22
PO
LCD display bias
(-).
Vnom = -5.5 V
Vmin = -6.0 V
Vmax = -4.0 V
Negative LCD
regulated output.
PWM
30
DO
PWM output
1.8 V power
domain.
WLED_EN
158
DO
LCD backlight
enable
1.8 V power
domain.
LCD_RST
113
DO
LCD reset
1.8 V power
domain.
Active low.
LCD_TE
114
DI
LCD tearing effect
1.8 V power
domain.
DSI_CLK_P
102
AIO
LCD MIPI clock (+)
DSI_CLK_N
103
AIO
LCD MIPI clock (-)
DSI_LN0_P
104
AIO
LCD MIPI lane 0
data (+)
DSI_LN0_N
105
AIO
LCD MIPI lane 0
data (-)
