Neoway N720 - Page 15

N720 Hardware User Guide
Copyright © Neoway Technology Co., Ltd 7
V
IH
max=2.1 V
PWRKEY
33
DI
Power ON/OFF
V
IL
min=-0.3 V;
V
IL
max=0.5 V;
V
IH
min=1.2 V;
V
IH
max=2.1 V
Low level triggers the ON/OFF state.
There is switch diode inside the module.
It is internally pulled up by a 200 kΩ resistor.
The level at the pin is 0.8 when it is left
unconnected.
200KΩ
1.8V
PM
PWRKEY
PON_TRIG
34
DI
PON_TRIG
V
IL
min=-0.3 V;
V
IL
max=0.5 V;
V
IH
min=1.2 V;
V
IH
max=2.1 V
1.8 V
High level triggers the ON status.
It is connected to ground through an internally
200 kΩ pull-down resistor.
Ground it if it is not used.
UART
UART2_TXD
46
DO
UART data transmit
V
OL
max=0.45 V;
V
OH
min=1.35 V;
1.8 V
Data transmission
Leave these pins unconnected if they are not
used.
UART2_RXD
47
DI
UART data receive
V
IL
min=-0.3 V;
V
IL
max=0.45 V;
V
IH
min=1.35 V;
V
IH
max=2.1 V
1.8 V
UART2_CTS
51
DI
Clear to send
V
IL
min=-0.3 V;
V
IL
max=0.45 V;
V
IH
min=1.35 V;
V
IH
max=2.1 V
1.8 V
Leave these pins unconnected if they are not
used.