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3.3. Pin
Descript
tion
The followin
ng tables sho
ow the EC2
Table 3: IO
Parameter
rs Definition
Type
IO
DI
DO
PI
PO
AI
AO
OD
Table 4: Pin
n Descriptio
on
Power Su
pply
Pin Name
Pin No.
VBAT_BB
59,60
VBAT_RF
57,58
VDD_EXT
T
7
8,9,19,2
2,3
6,46,48,
50
GND
~54,56,7
72,
85~112
EC25-A_Us
E
All manuals and user guides at all-guides.com
5's pin defin
nition.
n
Desc
cription
Bidir
rectional inp
ut/output
Digit
tal input
Digit
tal output
Powe
er input
Powe
er output
Anal
og input
Anal
og output
Open
n drain
I/O
Description
n
Power supp
ply for
PI
module bas
seband
part.
Power supp
ply for
PI
module RF
part.
Provide 1.8V
V for
PO
external circ
cuit.
Ground.
ser_ManualC
Confidentia
DC Charact
D
teristics
C
Comment
Vmax=4.3V
V
I
t must be ab
Vmin=3.3V
V
p
provide suffi
Vnorm=3.8V
V
V
c
current up to
I
t must be ab
V
Vmax=4.3V
p
provide suffi
Vmin=3.3V
V
c
current up to
V
Vnorm=3.8V
V
t
transmitting
P
Power supp
Vnorm=1.8V
V
V
e
external GP
I
max=50m
A
O
c
circuits.
al / Release
d
16 / 6
69
LTE Module
L
e
EC25-AU
ser Manua
al
ble to
cient
o 0.8A.
ble to
cient
o 1.8A in a
burst.
ly for
IO's pull up
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