Quectel EC25-AUX Hardware Design page 32

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