Data Sheet

LWB5+
Datasheet
https://www.lairdconnect.com/ 31
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Pin # Name Type
Pins map
to Chip
Voltage
Ref.
Function
If Not
Used
16 GND - - - Ground GND
17 VBAT
PWR
I/P
- VBAT
DC supply voltage for module.
Operational: VBAT is 3.2V to 4.8V (See VDDIO_RF
configuration)
** EVM/harmonics are improved with VBAT >= 3.6V
--
18 VBAT
PWR
I/P
- VBAT
DC supply voltage for module.
Operational: VBAT is 3.2V to 4.8V (See VDDIO_RF
configuration)
** VBAT at 3.6V to 4.8V has the same TX power but
a better EVM/harmonic emissions margin.
--
G1 GND - - - Ground GND
19 GPIO_4 I D3 VDDIO
Reserved for feature support
WCI-2 LTE coexistence Interface
NC
20 GPIO_6 O E4 VDDIO
Reserved for feature support
3-wire external coexistence interface.
TX_CONF: Grant of access indication to external
device.
NC
21 GPIO_3 I D2 VDDIO
Reserved for feature support
3-wire external coexistence interface.
STATUS: Indicates priority and TX/RX.
NC
22 GPIO_2 I E1 VDDIO
Reserved for feature support
3-wire external coexistence interface.
RF_ACTIVE: Request indication from external
device for access
NC
23 GPIO_5 O E3 VDDIO
Reserved for feature support
WCI-2 LTE coexistence Interface
NC
24 USB2_DM I/O F1 - Data minus of shared USB 2.0 port NC
25 USB2_DP I/O G1 - Data plus of shared USB 2.0 port NC
26 USB2_RREF I/O
H1
-
Bandgap reference resistor.
When in SDIO interface, leave open.
When in USB interface, connect to ground through
4.75K Ohm 1%.
--
27 GND - - - Ground GND
28 USB2_AVDD33 PWR H2 VBAT
In SDIO interface, short to Ground.
In USB interface, If VBAT is 3.6V or greater, connect
to VOUT_3P3. Otherwise connect to VBAT.
--
29 GND - - - Ground GND
30 VDDIO PWR - - WLAN/BT IO Voltage (1.8V/3.3V). --
31 GPIO_1 I/O D1 VDDIO
Reserved for feature support
Reserved for WL_DEVICE_WAKE.
Input from Host to wake up WLAN module.
NC