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UART0_RXD
UART0_CTS
UART0_RTS
UART2_TXD
UART2_RXD
SD Card Interface
Pin Name
VDDSD
VDDSDIO
SD_DATA0
SD_DATA1
SD_DATA2
SD_DATA3
SD_CMD
SD_CLK
SD_DET
Touch Panel Interface
SC200K_Series_Hardware_Design
35
DI
UART0 receive
36
DI
DCE clear to send
37
DO
DCE request to send
154
DO
UART2 transmit
153
DI
UART2 receive
Pin
I/O
Description
No.
Power supply for SD
38
PO
card
Power supply for
32
PO
SDIO pull-up circuit
41
DIO
SDIO data bit 0
42
DIO
SDIO data bit 1
43
DIO
SDIO data bit 2
44
DIO
SDIO data bit 3
40
DIO
SD card command
39
DO
SD card clock
SD card hot-plug
45
DI
detect
Smart Module Series
V
min = 1.46 V
OH
V
max = 0.48 V
IL
V
min = 1.39 V
IH
V
max = 0.48 V
IL
V
min = 1.39 V
IH
V
max = 0.20 V
OL
V
min = 1.46 V
OH
V
max = 0.20 V
OL
V
min = 1.46 V
OH
V
max = 0.48 V
IL
V
min = 1.39 V
IH
DC
Comment
Characteristics
It is suggested to add
an LDO with output
Vnom = 3.0 V
current of 1 A if an
I
max = 400 mA
O
external large-capacity
SD card is needed.
Only for SD_DATA and
Vnom = 3.0 V
SD_CMD pull-up
I
max = 100 mA
O
circuits.
1.8 V SD card:
V
max = 0.53 V
IL
V
min = 1.30 V
IH
V
max = 0.19 V
OL
V
min = 1.58 V
OH
3.0 V SD card:
V
max = 0.87 V
IL
50 Ω single-ended
V
min = 2.17 V
IH
V
max = 0.31 V
impedance.
OL
V
min = 2.61 V
OH
1.8 V SD card:
V
max = 0.19 V
OL
V
min = 1.58 V
OH
3.0 V SD card:
V
max = 0.31 V
OL
V
min = 2.61V
OH
V
max = 0.48 V
IL
Active low.
V
min = 1.39 V
IH
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