Quectel SC20 Series - Page 30

Smart Module Series
SC20_Series_Hardware_Design 29 / 133
SD_DATA2 43 DIO SDIO data bit 2
2.95 V SD card:
V
IL
max = 0.73 V
V
IH
min = 1.84 V
V
OL
max = 0.37 V
V
OH
min = 2.2 V
SD_DATA3 44 DIO SDIO data bit 3
SD_DET 45 DI
SD card hot-plug
detect
V
IL
max = 0.63 V
V
IH
min = 1.17 V
Active low.
Touch Panel (TP) Interface
Pin Name
Pin
No.
I/O Description DC Characteristics
Comment
TP_INT 30 DI TP interrupt
V
IL
max = 0.63 V
V
IH
min = 1.17 V
1.8 V power
domain.
TP_RST 31 DO TP reset
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power
domain.
Active low.
TP_I2C_SCL 47 OD TP I2C clock
1.8 V power
domain.
TP_I2C_SDA 48 OD TP I2C data
1.8 V power
domain.
LCM Interface
Pin Name
Pin
No.
I/O Description DC Characteristics
Comment
PWM 29 DO PWM output
V
OL
max = 0.45 V
V
OH
max =
VBAT_BB
Adjust the backlight
brightness.
LCD_RST 49 DO LCD reset
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power
domain.
Active low.
LCD_TE 50 DI LCD tearing effect
V
IL
max = 0.63 V
V
IH
min = 1.17 V
1.8 V power
domain.
MIPI_DSI_CLKN 52 AO LCD MIPI clock (-)
MIPI_DSI_CLKP 53 AO
LCD MIPI clock
(+)
MIPI_DSI_LN0N 54 AO
LCD MIPI data 0
(-)
MIPI_DSI_LN0P 55 AO
LCD MIPI data 0
(+)
MIPI_DSI_LN1N 56 AO
LCD MIPI data 1
(-)