Product Info

Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design Confidential / Released
3-28
/ 122
V
OH
min=2.2V
SD_CMD
40
IO
Command signal of
SD card
1.8V SD card:
V
IL
max=0.58V
V
IH
min=1.27V
V
OL
max=0.45V
V
OH
min=1.4V
2.95V SD card:
V
IL
max=0.73V
V
IH
min=1.84V
V
OL
max=0.37V
V
OH
min=2.2V
SD_DATA0
41
IO
High speed
bidirectional digital
signal lines of SD
card
1.8V SD card:
V
IL
max=0.58V
V
IH
min=1.27V
V
OL
max=0.45V
V
OH
min=1.4V
2.95V SD card:
V
IL
max=0.73V
V
IH
min=1.84V
V
OL
max=0.37V
V
OH
min=2.2V
SD_DATA1
42
IO
SD_DATA2
43
IO
SD_DATA3
44
IO
SD_DET
45
DI
SD card insertion
detection
V
IL
max=0.63V
V
IH
min=1.17V
Active low
Touch Panel (TP) Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
TP_INT
30
DI
Interrupt signal of TP
V
IL
max=0.63V
V
IH
min=1.17V
1.8V power domain.
TP_RST
31
DO
Reset signal of TP
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
Active low.
TP_I2C_SCL
47
OD
I2C clock signal of TP
1.8V power domain.
TP_I2C_SDA
48
OD
I2C data signal of TP
1.8V power domain.
LCM Interface