Quectel EC25-AUX

LTE Standard Module Series
EC25 Hardware Design
EC25_Hardware_Design 31 / 130
V
IL
max=0.58V
V
IH
min=1.27V
V
IH
max=2.0V
3.0V signaling:
V
OL
max=0.38V
V
OH
min=2.01V
V
IL
min=-0.3V
V
IL
max=0.76V
V
IH
min=1.72V
V
IH
max=3.34V
SD 3.0 protocol for
more details.
If unused, keep it
open.
SD_INS_
DET
23 DI
SD card insertion
detect
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it
open.
VDD_SDIO 34 PO
SD card SDIO bus
pull-up power
I
O
max=50mA
1.8V/2.85V
configurable.
Cannot be used for
SD card power.
If unused, keep it
open.
SGMII Interface
Pin Name Pin No. I/O Description DC Characteristics Comment
EPHY_RST_
N
119 DO Ethernet PHY reset
For 1.8V:
V
OL
max=0.45V
V
OH
min=1.4V
For 2.85V:
V
OL
max=0.35V
V
OH
min=2.14V
1.8V/2.85V power
domain.
If unused, keep it
open.
EPHY_INT_N 120 DI
Ethernet PHY
interrupt
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power domain.
If unused, keep it
open.
SGMII_
MDATA
121 IO
SGMII MDIO
(Management Data
Input/Output) data
For 1.8V:
V
OL
max=0.45V
V
OH
min=1.4V
V
IL
max=0.58V
V
IH
min=1.27V
For 2.85V:
V
OL
max=0.35V
1.8V/2.85V power
domain.
If unused, keep it
open.