Neoway N10 - Page 15

N10_Hardware_User_Guide
Copyright © Neoway Technology Co., Ltd.
9
USB Interface
11
VBUS
AI
USB voltage check
Complying with the
USB1.1 standard
Used for firmware download
12
USB_DM
DI/O
USB interface differential data line
13
USB_DP
DI/O
Reserved Pins
15, 22~31,36,
37, 43, 48,
49, 54~63
NC
Do not connect these pins to
power supply or ground.
The maximum input voltage at all IO ports (including peak signal current) cannot exceed 3.1 V because the module uses a 2.8 V IO power system. In the application
of the module, the IO output voltage from the 3.3 V power supply system of the external circuit might greatly overshoot 3.1 V due to the signal integrity design. In
this situation, the IO pins of the module might be damaged if the IO signals are connected to the IO port on the 2.8 V systems. To rectify this issue, take measures to
match the level. For details, see the 3.2 UART.