Quectel LTE-A Series Hardware Design page 26
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Also See for LTE-A Series:
- Hardware design (88 pages) ,
- Manual (51 pages) ,
- Hardware design (83 pages)
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SD_DATA2
47
SD_DATA3
48
SD_CMD
51
SD_CLK
53
SD_ DET
52
Main UART Interface
Pin Name
Pin No.
CTS
56
RTS
57
RXD
58
DCD
59
TXD
60
RI
61
DTR
62
EG18_Hardware_Design
1)
SDIO data signal (bit
IO
2)
SDIO data signal (bit
IO
3)
SDIO command
DO
signal
DO
SDIO clock signal
SD card insertion
DI
detection
I/O
Description
DO
Clear to send
DI
Request to send
DI
Receive data
DO
Data carrier detection
DO
Transmit data
DO
Ring indication
Data terminal ready,
DI
sleep mode control
LTE-A Module Series
EG18 Hardware Design
V
min=-0.3V
IL
V
max=0.58V
IL
V
min=1.3V
IH
V
max=2.0V
IH
For 3.0V SD card:
V
max=0.35V
OL
V
min=2.15V
OH
V
min=-0.3V
IL
V
max=0.7V
IL
V
min=1.8V
IH
V
max=3.15V
IH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
DC Characteristics
V
max=0.45V
OL
V
min=1.35V
OH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
V
max=0.45V
OL
V
min=1.35V
OH
V
max=0.45V
OL
V
min=1.35V
OH
V
max=0.45V
OL
V
min=1.35V
OH
V
min=-0.3V
IL
V
max=0.6V
IL
V
min=1.2V
IH
V
max=2.0V
IH
open.
If unused, keep it
open.
If unused, keep it
open.
If unused, keep it
open.
If unused, keep it
open.
1.8V power domain,
If unused, keep it
open.
Comment
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
If unused, keep it
open.
1.8V power domain.
Pulled up by
default. Pulling
down to low level
25 / 104
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