Quectel EC25-V - Pin Description; IO Parameters Definition

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 16 /
69
3.3. Pin Description
The following tables show the EC25’s pin definition.
Table 3: IO Parameters Definition
Type
Description
IO
Bidirectional input/output
DI
Digital input
DO
Digital output
PI
Power input
PO
Power output
AI
Analog input
AO
Analog output
OD
Open drain
Table 4: Pin Description
Power Supply
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
VBAT_BB
59, 60
PI
Power supply for
module baseband
part.
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
It must be able to
provide sufficient
current up to 0.8A.
VBAT_RF
57, 58
PI
Power supply for
module RF part.
Vmax=4.3V
Vmin=3.3V
Vnorm=3.8V
It must be able to
provide sufficient
current up to 1.8A in a
transmitting burst.
VDD_EXT
7
PO
Provide 1.8V for
external circuit.
Vnorm=1.8V
I
O
max=50mA
Power supply for
external GPIO’s pull up
circuits.
GND
8, 9, 19,
22, 36, 46,
48, 50~54,
56, 72,
Ground.