Quectel QuecOpen BG952A-GL, Проектирование аппаратного обеспечения

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LPWA Module Series
BG952A-GL_QuecOpen_Hardware_Design 21 / 72
PON_TRIG * 96 DI
Used to wake up
the MCU in low
power mode
V
IL
min = -0.2 V
V
IL
max = 0.3 V
V
IH
min = 1 V
V
IH
max = 1.98 V
1.8 V power
domain.
If unused, keep
these pins open.
USB Interface *
Pin Name Pin No. I/O Description DC Characteristics Comment
USB_VBUS 8 AI
USB connection
detect
Vnom = 5.0 V Typical 5.0 V
USB_DP 9 AIO
USB differential
data (+)
Vmax = 4.1 V
Vmin = -0.2 V
Compliant with
USB 2.0 standard
specification.
Require differential
impedance of 90 Ω.
USB_DM 10 AIO
USB differential
data (-)
(U)SIM Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
USIM_DET 42 DI
(U)SIM card
hot-plug detect
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power
domain.
If unused, keep
these pins open.
USIM_VDD 43 PO
(U)SIM card power
supply Vmax = 1.9 V
Vmin = 1.7 V Only 1.8 V (U)SIM
card is supported.
USIM_RST 44 DO (U)SIM card reset
V
OL
max = 0.36 V
V
OH
min = 1.44 V
1.8 V power
domain.
USIM_DATA 45 DIO (U)SIM card data
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
V
OL
max = 0.36 V
V
OH
min = 1.44 V
USIM_CLK 46 DO (U)SIM card clock
V
OL
max = 0.36 V
V
OH
min = 1.44 V
USIM_GND 47
Specified ground
for (U)SIM card
Main UART Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
MAIN_DTR 30 DI
Main UART data
terminal ready
V
IL
min = -0.2 V
V
IL
max = 0.54 V
V
IH
min = 1.26 V
V
IH
max = 2.0 V
1.8 V power
domain.
If unused, keep
these pins open.
MAIN_RXD 34 DI
Main UART
receive