| Pin | Name | Function | Description | Recommendation |
|---|---|---|---|---|
| 1 | OTPVDD | Power | ||
| 2 | Reserved | Connect to ground. | ||
| 3 | Reserved | Connect to ground. | ||
| 4 | Reserved | Connect to ground. | ||
| 5 | Reserved | Connect to ground. | ||
| 6 | Reserved | Do not connect. | ||
| 7 | TXRF<1> | RF | 5 GHz | |
| 8 | PAVDD<1> | Power | ||
| 9 | TXRF<0> | RF | 2.4 GHz | |
| 10 | PAVDD<0> | Power | ||
| 11 | SXLDO | Power | ||
| 12 | PALDO | Power | ||
| 13 | VBAT | Power | ||
| 14 | RFVDD | Power | ||
| 15 | RFBUCKVDD | Power | ||
| 16 | XOLDO | Power | ||
| 17 | XOP | Analog input | 40 MHz crystal (or TCXO output if using an external TCXO) | |
| 18 | XON | Analog input | 40 MHz crystal (or N.C. if using an external TCXO) | |
| 19 | AFELDO | Power | ||
| 20 | AFEVBAT | Power | ||
| 21 | Reserved | Do not connect. | ||
| 22 | Reserved | Do not connect. | ||
| 23 | Reserved | Do not connect. | ||
| 24 | Reserved | Do not connect. | ||
| 25 | BUCKVBAT | Power | ||
| 26 | BUCKOUT | Power | DCDC output | |
| 27 | BUCKVSS | Power | DCDC GND | |
| 28 | BUCKVSS | Power | DCDC GND | |
| 29 | BUCKVMID | Power | Voltage reference decoupling pin | |
| 30 | BUCKEN | Digital I/O | PWR IP enable pin | |
| 31 | BUCKVBATS | Power | ||
| 32 | PWRBUCKVDD | Power | ||
| 33 | DIGVDD | Power | ||
| 34 | PWRIOVDD | Power | ||
| 35 | QSPI_CLK SPI_CLK |
Digital I/O | QSPI Clock SPI Clock |
Pull down. |
| 36 | QSPI_SS SPI_SS |
Digital I/O | QSPI Slave select SPI Slave select |
|
| 37 | QSPI_DATA0 SPI_MOSI |
Digital I/O | QSPI data SPI data |
Pull down. |
| 38 | QSPI_DATA1 SPI_MISO |
Digital I/O | QSPI data SPI data |
Pull down. |
| 39 | QSPI_DATA2 | Digital I/O | QSPI data | Connect to GND or pull down. Connect to GND if not used. |
| 40 | QSPI_DATA3 | Digital I/O | QSPI data | Connect to GND or pull down. Connect to GND if not used. |
| 41 | COEX_STATUS0 | Digital I/O | Coex interface | Connect to GND or pull down. Connect to GND if not used. |
| 42 | COEX_REQ | Digital I/O | Coex interface | Connect to GND or pull down. Connect to GND if not used. |
| 43 | COEX_GRANT | Digital I/O | Coex interface | |
| 44 | SW_CTRL0 | Digital I/O | External switch control | |
| 45 | COEX_STATUS1 SW_CTRL1 |
Digital input Digital output |
Coex interface External switch control |
Connect to GND or pull down. Connect to GND if not used. |
| 46 | HOST_IRQ | Digital I/O | Host processor interrupt request | |
| 47 | VSS | Power | ||
| 48 | IOVDD | Power | ||
| 49 (Die pad) | VSS | Power | Ground pad | Exposed die pad must be connected to ground (VSS) for proper device operation. |