Specifications

17
SSRX+
AI
USB3.0 SuperSpeed Device Interface RX differential pair
（to connect USB 3.0 Host“
SSTX+
”）
If USB3.0 is not used
，
this Pin can be left floating .
18
GND
P
Ground for Power and I/O
19
HSD+
A I/O
USB2.0 HighSpeed Device Interfacedifferential pair
（to connect USB 2.0 Host“HSD+”）
20
HSD-
AI/O
USB2.0 HighSpeed Device Interfacedifferential pair
（to connect USB 2.0 Host“HSD-”）
21
VDD33
P
DC 3.3V power supply
22
Reset
I/O
3.3V
Reset input，this Pin can externally shutdown/reset
theModule，Active Low, internal pull high by 10K resistor.
If not used，this Pin can be left floating .
23
GPIO / BT_Wake_Host
I/O
3.3V
1
、
GPIO0
，
I/O
；
2
、
BT LE Wake up Host
，
Active Low
output
，
internal pull high by 10K resistor.
If not used
，
this Pin can be left floating .
24
GPIO / UART_RTS
I/O
3.3V
1
、
GPIO11
，
output
，
shall not be used as input
；
2
、
UART RTS output
；
3、USB FrequencySelect_Boot strap：
0
：
USB 5G Mode
1：USB 2.5G Mode (internal weak pull Low)
If not used，this Pin can be left floating .
25
GPIO / UART_CTS
I/O
3.3V
1
、
GPIO12
，
I/O
；
2
、
UART RTS input .
If not used
，
this Pin can be left floating .
26~28
NC
/
NC
29
GND
RF
RF Ground for BT_ANT0
30
BT_RF0
RF
RF PAD for BT_ANT0
31
GND
RF
RF Ground for BT_ANT0
32~59
GND
P
Optional ground pads of heatsink,can be left floating.
P1
WLAN_RF1
RF
IPEX connector for 2.4G / 5G RF to WLAN_ANT1
P2
NC
RF
NC（Reserved IPEX connector PAD for BT_ANT0）
P3
WLAN_RF0
RF
IPEX connector for 2.4G / 5G RF to WLAN_ANT0
P: Power;I/O: In/Output; A I/O: AnalogIn/Output;RF: Analog RF Port;