Quectel UC20 Manual page 25

AGND 22
I2C Interface
Pin Name Pin No.
I2C_SCL 41
I2C_SDA 42
Other Pins
Pin Name Pin No.
WAKEUP_
1
IN
W_DISABL
4
E#
AP_READY 2
RESERVED Pins
Pin Name Pin No.
23,28~33,3
RESERV
7~40,43,55
ED
,73~84
UC20_Hardware_Design
Reserved for analog
ground.
I/O Description
OD I2C serial clock.
OD I2C serial data.
I/O Description
DI Sleep mode control.
Airplane mode
DI
control.
Application
DI processor sleep
state detection.
I/O Description
Reserved
Confidential / Released
UMTS/HSPA Module Series
UC20 Hardware Design
Ground.
DC Characteristics
DC Characteristics
V min = -0.3V
IL
V max = 0.6V
IL
V min = 1.2V
IH
V max = 2.0V
IH
V min = -0.3V
IL
V max = 0.6V
IL
V min = 1.2V
IH
V max = 2.0V
IH
V min = -0.3V
IL
V max = 0.6V
IL
V min = 1.2V
IH
V max = 2.0V
IH
DC Characteristics
If unused, connect
this pin to ground.
Comment
External pull-up
resistor is required.
1.8V only.
External pull-up
resistor is required.
1.8V only.
Comment
1.8V power domain.
Pull-up by default.
Low level wakes up
the module.
1.8V power domain.
Pull-up by default.
In low level voltage,
module can enter into
airplane mode.
1.8V power domain.
Comment
Keep these pins
unconnected.
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