User's Manual

N
720 Hardware User Guide
Copyright © Neoway Technology Co., Ltd 10
USB_DM 41 IO USB data negative signal USB2.0 Used for firmware download
and data transmission
Differential trace for DM and
DP
90 impedance resistance
USB_DP 42 IO USB data positive signal USB2.0
VBUS 40 PI USB voltage test 3.3V~5.2V, typically 5V
USB _ID 43 AI Identify host and device 1.8V
Leave it disconnected if you
do not use it.
ADC
ADC2 88 AI
Analog-to-digital signal
conversion
Vmax=1.7V
Vmin=0.1V
1.8V
16-bit, detectable voltage
range: 0.1 V to 1.7 V
ADC1 89 AI
Analog-to-digital signal
conversion
Vmax=1.7V
Vmin=0.1V
1.8V
Network LED Indicator
NET_LIGHT 83 DO Indicate network status
V
OL
max=0.45V;
V
OH
min=1.35V;
1.8V
Leave it disconnected if you
do not use it.
Sleep Mode Control
DTR 79 DI Sleep mode control
V
IL
min=-0.3V;
V
IL
max=0.45V;
V
IH
min=1.35V;
V
IH
max=2.1V
1.8V
Leave it disconnected if you
do not use it.
RING