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