Smart Module Series
SC200R&SC262R_Series_Hardware_Design 31 / 124
UART5_TXD
34
DO
UART5 transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
1.8 V power
domain.
If not used, keep
these pins open.
UART5_RXD
35
DI
UART5 receive
V
IL
max = 0.63 V
V
IH
min = 1.17 V
UART5_CTS
36
DI
UART5 clear to
send
V
IL
max = 0.63 V
V
IH
min = 1.17 V
UART5_RTS
37
DO
UART5 request to
send
V
OL
max = 0.45 V
V
OH
min = 1.35 V
DBG_RXD
93
DI
UART2 receive
(debug UART by
default)
V
IL
max = 0.63 V
V
IH
min = 1.17 V
DBG_TXD
94
DO
UART2 transmit
(debug UART by
default)
V
OL
max = 0.45 V
V
OH
min = 1.35 V
UART1_RXD
153
DI
UART1 receive
V
IL
max = 0.63 V
V
IH
min = 1.17 V
UART1_TXD
154
DO
UART1 transmit
V
OL
max = 0.45 V
V
OH
min = 1.35 V
SD Card Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
SD_LDO11
38
PO
2.95 V output
power supply for
SD card
Vnom = 2.95 V
I
O
max = 800 mA
SD_LDO12
32
PO
1.8/2.95 V output
power supply for
SD card pull-up
circuits.
Vnom = 1.8/2.95 V
I
O
max = 50 mA
SD_CLK
39
DO
SD card clock
1.8 V SD card:
V
OL
max = 0.45 V
V
OH
min = 1.4 V
2.95 V SD card:
V
OL
max = 0.37 V
V
OH
min = 2.2 V
50
Ω characteristic
impedance.
SD_CMD
40
DIO
SD card command
1.8 V SD card:
V
IL
max = 0.58 V
V
IH
min = 1.27 V
V
OL
max = 0.45 V
V
OH
min = 1.4 V
SD_DATA0
41
DIO
SDIO data bit 0
SD_DATA1
42
DIO
SDIO data bit 1
SD_DATA2
43
DIO
SDIO data bit 2
