User's Manual

Smart Machine Smart Decision
SIM7600NA-H_user manual _V1.00 17 2020-1-7
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System Control
PWRKEY 3 DI,PU
System power on/off control
input, active low.
The high voltage is
0.8V;
RESET 4 DI, PU
System reset control input,
active low.
RESET has been
pulled up to 1.8V
via 40Kohm resistor
internally.
SD interface
SD_CMD 21 I/O,PD SDIO command
If unused, keep
them open.
SD_DATA0 22
I/O,PD
SDIO data
SD_DATA1 23 I/O,PD
SD_DATA2 24
I/O,PD
SD_DATA3 25 I/O,PD
SD_CLK 26
DO SDIO clock
SD_DET
48 DI,PU
SD card insertion detect
H: SD card is removed
L: SD card is inserted
USIM interface
USIM_DATA 17 I/O,PU
USIM Card data I/O, which has
been pulled up via a 10KR
resistor to USIM_VDD
internally. Do not pull it up or
down externally.
All lines of USIM
interface should be
protected against
ESD.
USIM_RST 18 DO,PD USIM Reset
USIM_CLK 19 DO,PD USIM clock
USIM_VDD 20 PO,PD
Power output for USIM card, its
output Voltage depends on
USIM card type automatically.
Its output current is up to 50mA.
SPI interface
SPI_CLK* 6
DO
SPI clock output
Default SPI
Optional: BT uart
function
SPI_MISO* 7 DI SPI master in/slave out data
SPI_MOSI* 8 DO
SPI master out/slave in data
SPI_CS* 9 DO SPI chip-select output
USB
USB_VBUS 11 AI
Valid USB detection input with
3.0~5.25V detection voltage
USB_DN 12 AI, AO
Negative line of the differential,
bi-directional USB signal.