MeiG
Product
Manual
of
SLM750
Module
SLM750
Module
Hardware
Design
Page 23, total 84 pages
impedance
ANT_GNSS
47 AI
GNSS antenna
50 ohm
impedance
If unused, keep it
open.
GPIO Pin
Pin name
Pin
number
I/O
Description
DC features
Note
WAKEUP_IN 1 DI
Sleep
mode
input
control
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power
domain.
High level wakes
up the module; in
low level the
module enters into
sleep mode. If
unused, keep it
open.
AP_READY 2 DI
Application
processor sleep
state detection
V
OL
max=0.45V
V
OH
min=1.35V
1.8V power
domain.
If unused, keep it
open.
WAKEUP_O
UT_N
3 DO
Sleep
mode
output
VOLmax=0.45V
VOHmin=1.35V
1.8V power
domain.
If unused, keep it
open.
W_DISABLE
#
4 DI
Flight
mode
control
V
IL
min=-0.3V
V
IL
max=0.6V
V
IH
min=1.2V
V
IH
max=2.0V
1.8V power
domain.
In low level the
module enters into
flight mode. If
unused, keep it
open.
WLAN interface
Pin name
Pin
number
I/O
Description
DC features
Note
BT_RTS* 37
DO
Bluetooth serial
port request to
send data
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
1.8V power
domain.
If unused, keep it
open.
BT_TXD* 38
DO
Bluetooth serial
port sends data
VOLmax =0.45V
VOHmin =1.35V
1.8V power
domain.
If unused, keep it
open.
BT_RXD* 39
DI
Bluetooth Serial
Port receives data
VILmin=-0.3V
VILmax=0.6V
1.8V power
domain.
