Product Info

LTE-A Module Series
EG12 Hardware Design
EG12_Hardware_Design 25 / 100
SD_DATA0
49
IO
SDIO data signal
(bit 0)
For 1.8V SD card:
V
OL
max=0.45V
V
OH
min=1.4V
V
IL
min=-0.3V
V
IL
max=0.58V
V
IH
min=1.3V
V
IH
max=2.0V
For 3.0V SD card:
V
OL
max=0.35V
V
OH
min=2.15V
V
IL
min=-0.3V
V
IL
max=0.7V
V
IH
min=1.8V
V
IH
max=3.15V
If unused, keep it
open.
SD_DATA1
50
IO
SDIO data signal
(bit 1)
If unused, keep it
open.
SD_DATA2
47
IO
SDIO data signal
(bit 2)
If unused, keep it
open.
SD_DATA3
48
IO
SDIO data signal
(bit 3)
If unused, keep it
open.
SD_CMD
51
DO
SDIO command
signal
If unused, keep it
open.
SD_ DET
52
DI
SD card insertion
detection
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.
SD_CLK
53
DO
SDIO clock signal
If unused, keep it
open.
Main UART Interface
Pin Name
Pin No.
I/O
Description
DC Characteristics
Comment
CTS
56
DO
Clear to send
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power domain.
If unused, keep it
open.
RTS
57
DI
Request to send
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.
RXD
58
DI
Receive data
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.