Quectel SC20 Series Hardware Design page 30

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