美的
IoT
公司
15
/
18
Communication serial port level parameters:
Under 5V working power supply:
Symbol
parameter
The
minimum
value
Typical
values
The
maximu
m
unit
VIH
High Level Input Voltage
4.5
5
VDD
V
VIL
Low Level Input Voltage
0.3
-
0.3
V
VOH
High Level Output Voltage
4.5
5.0
VDD
V
VOL
Low Level Output Voltage
0
-
0.4
V
3.3v Operating Power:
Symbol
parameter
The
minimum
value
Typical
values
The
maximu
m
unit
VIH
High Level Input Voltage
3.135
3.3
VDD
V
VIL
Low Level Input Voltage
0.3
-
0.3
V
VOH
High Level Output Voltage
3.135
3.3
VDD
V
VOL
Low Level Output Voltage
0
-
0.4
V
7. Compliance with standards and certification
The Wi-Fi & Bluetooth module shall be certified by the state radio administration
of the ministry of industry and information technology of the People's Republic of
China.