Quectel EC25-V - Page 18

LTE Module Series
EC25-V User Manual
EC25-V_User_Manual Confidential / Released 17 /
69
85~112
Turn on/off
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
PWRKEY
21
DI
Turn on/off the
module.
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
RESET_N
20
DI
Reset the module.
V
IH
max=2.1V
V
IH
min=1.3V
V
IL
max=0.5V
Status Indication
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
STATUS
61
OD
Indicate the module
operating status.
The drive current
should be less than
0.9mA.
Require external
pull-up. If unused,
keep it open.
NET_MODE
5
DO
Indicate the module
network registration
mode.
V
OH
min=1.35V
V
OL
max=0.45V
1.8V power domain.
If unused, keep it
open.
NET_
STATUS
6
DO
Indicate the module
network activity
status.
V
OH
min=1.35V
V
OL
max=0.45V
1.8V power domain.
If unused, keep it
open.
USB Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USB_VBUS
71
PI
USB detection.
Vnorm=5.0V
USB_DP
69
IO
USB differential data
bus.
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90ohm.
USB_DM
70
IO
USB differential data
bus.
Compliant with USB
2.0 standard
specification.
Require differential
impedance of 90ohm.
USIM Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
USIM_GND
10
Specified ground for
USIM card.
USIM_VDD
14
PO
Power supply for
USIM card.
For 1.8V USIM:
Vmax=1.9V
Vmin=1.7V
Either 1.8V or 3V is
supported by the
module automatically.