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The following table shows the pin definition of USB1.
Table 10: Pin Definition of USB1 Interface
Pin Name
Pin No.
USB_VBUS
141, 142
USB_DM
13
USB_DP
14
USB_ID
16
For the design of USB 2.0 interface, it is recommended to connect the module's USB_ID directly to the
USB_ID pin of the USB connector for USB ID detection. When a device is plugged into the external Micro
USB connector, the USB_ID pin of the module will be pulled down to make the module enter host mode.
USB_VBUS
USB_DM
USB_DP
USB_ID
GND
Module
SC200L_Series(Dual-band Wi-Fi)_Hardware_Design
I/O
Description
Charging power input;
USB 5 V power input;
PI
USB/adaptor insertion
detect
AIO
USB differential data bus (-)
AIO
USB differential data bus (+)
DI
USB ID detect
C1
D1
ESD ESD ESD
100 nF
Figure 11: Reference Design for USB1 Interface
Comment
Vmax = 9.20 V
Vmin = 4.50 V
Vnom = 5.00 V
USB 2.0 standard compliant.
90 Ω differential impedance.
Supports USB OTG mode, but
does not support USB hub.
High level by default.
If not used, keep it open.
1
2
3
4
5
D4
D2
D3
ESD
Smart Module Series
USB_VBUS
USB_DM
USB_DP
USB_ID
GND
40 / 111
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