SC200L Hardware Design
SC200L_Hardware_Design
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USIM1_DATA 25
IO
(U)SIM1 card data
signal
V
IL
max =
0.3 × USIM1_VDD
V
IH
min =
0.7 × USIM1_VDD
V
OL
max =
0.1 × USIM1_VDD
V
OH
min =
0.9 × USIM1_VDD
It cannot be
multiplexed into a
Generic GPIOs.
USIM1_VDD 26
PO
(U)SIM1 card power
supply
1.80 V (U)SIM:
Vmax = 1.85 V
Vmin = 1.75 V
2.95 V (U)SIM:
Vmax = 3.1 V
Vmin = 2.90 V
Either 1.8V or 2.95V
(U)SIM card is
supported
。
UART Interfaces
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
UART0_TXD 34
DO
UART0 transmit
data
V
OL
max = 0.20 V
V
OH
min = 1.46 V
1.85V power domain,
If it is not used, keep
it open.
UART0_RXD
35
DI
UART0 receive data
V
IL
max = 0.48 V
V
IH
min = 1.39 V
UART0_CTS 36
DI
UART0 clear to
send
V
IL
max = 0.48 V
V
IH
min = 1.39 V
UART0_RTS 37
DO
UART0 request to
send
V
OL
max = 0.20 V
V
OH
min = 1.46 V
DBG_RXD 93 DI
UART1 receive
data.Debug port by
default.
V
IL
max = 0.48 V
V
IH
min = 1.39 V
DBG_TXD 94 DO
UART1 transmit
data.Debug port by
default.
V
OL
max = 0.20 V
V
OH
min = 1.46 V
SD Card Interface
Pin Name
Pin No.
I/O
Description
DC
Characteristics
Comment
SD_VDD
38
PO
3.00V output power
supply
Vnorm = 3.00 V
I
O
max = 400 mA
Power supply for SD.
SD_CLK 39
DO
1.8V/2.95V output
power supply
1.8 V SD card
：
V
OL
max = 0.19 V
V
OH
min = 1.58 V
3.0 V SD card
：
V
OL
max = 0.31 V
V
OH
min = 2.61V
50
Ω
single-ended
impedance.
