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UART5_TXD
34
UART5_RXD
35
UART5_CTS
36
UART5_RTS
37
DBG_RXD
93
DBG_TXD
94
UART1_RXD
153
UART1_TXD
154
SD Card Interface
Pin Name
Pin No.
SD_LDO11
38
SD_LDO12
32
SD_CLK
39
SD_CMD
40
SD_DATA0
41
SD_DATA1
42
SD_DATA2
43
SC262R_Series_Hardware_Design
DO
UART5 transmit
DI
UART5 receive
DI
DCE clear to send
DCE request to
DO
send
UART2 receive
DI
(debug UART by
default)
UART2 transmit
DO
(debug UART by
default)
DI
UART1 receive
DO
UART1 transmit
I/O
Description
SD card power
PO
supply
1.8/2.95 V output
power supply for
PO
SD card pull-up
circuits.
DO
SD card clock
DIO
SD card command
DIO
SDIO data bit 0
DIO
SDIO data bit 1
DIO
SDIO data bit 2
Smart Module Series
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
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
Vnom = 2.95 V
I
max = 800 mA
O
Vnom = 1.8/2.95 V
I
max = 50 mA
O
1.8 V SD card:
V
max = 0.45 V
OL
V
min = 1.4 V
OH
2.95 V SD card:
V
max = 0.37 V
OL
V
min = 2.2 V
OH
1.8 V SD card:
V
max = 0.58 V
IL
V
min = 1.27 V
IH
V
max = 0.45 V
OL
V
min = 1.4 V
OH
1.8 V power
domain.
If not used, keep
these pins open.
Comment
50 Ω characteristic
impedance.
27 / 115
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