Quectel SC200L-EM Hardware Design page 16

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