Specifications

2. Pin Assignments
Pin Definition
No Pin Name Type
Voltage
7668BU - B
1 DC_EN
I
5V
2
BT_WAKE_HOST I
3.3V
3
VDD P
5V
4
USB_D-
I/O
5
USB_D+
I/O
6
GND RF
7 GND
RF
8
NC --
9
CHIP_IN I
3.3V
10
WL_WAKE_HOST I
3.3V
Voltage
Module Pin Description
5V
Power enable, active low module power disable, pull
high internal
3.3V
BT wake up host, 200ms pulse, low level effective or high
level effective can be configured
5V
5V power supply
USB differential data line
USB differential data line
GND
GND
--
3.3V
Chip enable, active low shutdown the module, pull high
internal
3.3V
WLAN wake up host, 200ms pulse, low level effective or
high level effective can be configured
1
10
Power enable, active low module power disable, pull
BT wake up host, 200ms pulse, low level effective or high
Chip enable, active low shutdown the module, pull high
WLAN wake up host, 200ms pulse, low level effective or
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