Quectel EG915U-EU, Руководство пользователя

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LTE Standard Module Series
EG915U-EU_Hardware_Design 18 / 81
when in use.
If unused, keep it
open.
Turn On/Off
Pin Name Pin No. I/O Description
DC
Characteristics
Comment
PWRKEY 15 DI Turn on/off the module
V
IL
max = 0.5 V
VBAT power
domain.
RESET_N 17 DI Reset the module
VBAT power
domain.
If unused, keep it
open.
PSM_EINT * 96 DI
External interrupt pin;
Wake up the module
from PSM
If unused, keep it
open.
Indication Interface
Pin Name Pin No. I/O Description
DC
Characteristics
Comment
STATUS 20 DO
Indicate the module's
operation status
V
OH
min = 1.35 V
V
OL
max = 0.45 V
1.8 V power
domain.
If unused, keep
it open
NET_STATUS 21 DO
Indicate the module's
network activity status
V
OH
min = 1.35 V
V
OL
max = 0.45 V
1.8 V power
domain.
If unused, keep it
open.
PSM_IND * 1 DO
Indicate the m
odule’s
power saving mode
USB Interface
Pin Name Pin No. I/O Description
DC
Characteristics
Comment
USB_VBUS 8 AI USB connection detect
Vmax = 5.25 V
Vmin = 3.5 V
Vnom = 5.0 V
Typical: 5.0 V
If unused, keep it
open.
USB_DP 9 AIO USB differential data (+)
USB 2.0
compliant.
Require
differential
impedance of 90
Ω.
If unused, keep it
open.
USB_DM 10 AIO USB differential data (-)