Quectel EC25 series

RTS
DTR
TXD
RXD
Debug U
A
Pin Name
DBG_TX
D
DBG_RX
D
ADC Inte
r
Pin Name
ADC0
ADC1
PCM Inte
r
Pin Name
E
65
66
67
68
A
RT Interfa
c
Pin N
o
D
12
D
11
r
face
Pin N
o
45
44
r
face
Pin N
o
E
C25-A_U
s
DI
DI
DO
DI
c
e
o
. I/O
DO
DI
o
. I/O
AI
AI
o
. I/O
s
e
r
_Manual
C
Request to
Data termi
n
ready,sleep
control.
Transmit d
a
Receive da
t
Descriptio
n
Transmit d
a
Receive da
t
Descriptio
n
General pu
r
analog to d
i
converter.
General pu
r
analog to d
i
converter.
Descriptio
n
C
onfidenti
a
send.
n
al
mode
a
ta.
t
a.
n
a
ta.
t
a.
n
r
pose
i
gital
r
pose
i
gital
n
a
l / Release
V
IL
min=-0.
3
V
IL
max=0.6
V
IH
min=1.2
V
V
IH
max=2.
0
V
IL
min=-0.
3
V
IL
max=0.6
V
IH
min=1.2
V
V
IH
max=2.
0
V
OL
max=0.
4
V
OH
min=1.
3
V
IL
min=-0.
3
V
IL
max=0.6
V
IH
min=1.2
V
V
IH
max=2.
0
DC Chara
c
V
OL
max=0.
4
V
OH
min=1.
3
V
IL
min=-0.
3
V
IL
max=0.6
V
IH
min=1.2
V
V
IH
max=2.
0
DC Chara
c
Voltage ran
0.3V to VB
A
Voltage ran
0.3V to VB
A
DC Chara
c
d 19 /
6
3
V
V
V
0
V
3
V
V
V
0
V
4
5V
3
5V
3
V
V
V
0
V
c
teristics
4
5V
3
5V
3
V
V
V
0
V
c
teristics
ge:
A
T_BB
ge:
A
T_BB
c
teristics
L
EC25-AU
6
9
open.
1.8V pow
e
If unused,
open.
1.8V pow
e
Pull-up by
Low level
w
the modul
e
If unused,
open.
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
Commen
t
1.8V pow
e
If unused,
open.
1.8V pow
e
If unused,
open.
Commen
t
If unused,
open.
If unused,
open.
Commen
t
L
TE Modul
e
ser Manu
a
e
r domain.
keep it
e
r domain.
default.
w
akes up
e
.
keep it
e
r domain.
keep it
e
r domain.
keep it
t
e
r domain.
keep it
e
r domain.
keep it
t
keep it
keep it
t
e
a
l