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3.3. Pin Description
The following tables show the pin description of FC908A.
Table 3: I/O Parameters Definition
Type
AIO
DI
DO
DIO
PI
PO
Table 4: Pin Description
Power Supply
Pin Name
Pin No.
VBAT
9
VDDIO
22
VIN_LDO_OUT
21
VIN_LDO
23
GND
1, 3, 20, 31, 33, 36
WLAN Application Interface
Pin Name
Pin No.
WLAN_EN
12
WLAN_WAKE
13
FC908A_Hardware_Design
Description
Analog Input/Output
Digital Input
Digital Output
Digital Input/Output
Power Input
Power Output
I/O
Description
Power supply for the
PI
module
Power supply for
PI
module's I/O pins
Internal buck output for
PO
the module
Internal buck input for
PI
the module
I/O
Description
WLAN function enable
DI
control
Wake up the host by
DO
WLAN
Wi-Fi&Bluetooth Module Series
Comment
Comment
VDDIO power domain.
Active high.
VDDIO power domain.
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