Product Info

LTE Standard Module Series
EC25 Series Hardware Design
EC25_Series_Hardware_Design 34 / 134
3.0 V signaling:
V
OL
max = 0.38 V
V
OH
min = 2.01 V
V
IL
min = -0.3 V
V
IL
max = 0.76 V
V
IH
min = 1.72 V
V
IH
max = 3.34 V
SD_INS_
DET
23
DI
SD card insertion
detect
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
VDD_SDIO
34
PO
SD card SDIO bus
pull-up power
I
O
max = 50 mA
1.8/2.85 V
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 1.8 V:
V
OL
max = 0.45 V
V
OH
min = 1.4 V
For 2.85 V:
V
OL
max = 0.35 V
V
OH
min = 2.14 V
1.8/2.85 V power
domain.
If unused, keep it
open.
EPHY_INT_N
120
DI
Ethernet PHY
interrupt
V
IL
min = -0.3 V
V
IL
max = 0.6 V
V
IH
min = 1.2 V
V
IH
max = 2.0 V
1.8 V power domain.
If unused, keep it
open.
SGMII_
MDATA
121
IO
SGMII MDIO
(Management Data
Input/Output) data
For 1.8 V:
V
OL
max = 0.45 V
V
OH
min = 1.4 V
V
IL
max = 0.58 V
V
IH
min = 1.27 V
For 2.85 V:
V
OL
max = 0.35 V
V
OH
min = 2.14 V
V
IL
max = 0.71 V
V
IH
min = 1.78 V
1.8/2.85 V power
domain.
If unused, keep it
open.