GPIO is 3 of RF Transceiver ICs

Part StatusTypeRF Family/StandardProtocolModulationFrequencyData Rate (Max)Power - OutputSensitivityMemory SizeSerial InterfacesGPIOVoltage - SupplyCurrent - ReceivingCurrent - TransmittingOperating TemperaturePackage / Case
Image Part NO. Manufacturer Description Part StatusTypeRF Family/StandardProtocolModulationFrequencyData Rate (Max)Power - OutputSensitivityMemory SizeSerial InterfacesGPIOVoltage - SupplyCurrent - ReceivingCurrent - TransmittingOperating TemperaturePackage / Case
CYRF6986-40LTXC Cypress Semiconductor Corp TXRX RF 2.4GHZ 40QFN ObsoleteTxRx OnlyGeneral ISM > 1GHZ-DSSS, GFSK2.4GHz1Mbps-5dBm-90dBm-SPI32.7 V ~ 3.6 V21.2mA26.2mA0°C ~ 70°C40-UFQFN Exposed Pad
LMX5452SM/NOPB Texas Instruments IC RF TXRXMCU BLUETOOTH 60TFBGA ObsoleteTxRx + MCUBluetoothBluetooth v1.2-2.4GHz12Mbps--80dBm-JTAG, SPI, UART, USB32.5 V ~ 3.6 V---40°C ~ 85°C60-LFBGA
LMX9830SMX/NOPB Texas Instruments IC RF TXRXMCU BLUETOOTH 60TFBGA ActiveTxRx + MCUBluetoothBluetooth v2.0MSK2.4GHz704kbps0dBm-80dBm16kB RAMJTAG, SPI, UART32.5 V ~ 3.6 V65mA (Max)65mA (Max)-40°C ~ 125°C60-LFBGA
MRF24XA-I/MQ Microchip Technology IC RF TXRXMCU 802.15.4 32-VFQFN ActiveTxRx + MCU802.15.4, General ISM > 1GHz6LoWPAN, Zigbee®, MiWi®DSSS, O-QPSK2.4GHz2Mbps1dBm-103dBm-SPI31.5 V ~ 3.6 V13.5mA ~ 16.5mA30mA-40°C ~ 85°C32-VFQFN Exposed Pad
SI4430-A0-FM Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN ObsoleteTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK900MHz ~ 960MHz128kbps13dBm (Max)-118dBm-SPI31.8 V ~ 3.6 V18.5mA18mA ~ 28mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4430-B1-FMR Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK900MHz ~ 960MHz256kbps13dBm (Max)-121dBm-SPI31.8 V ~ 3.6 V18.5mA17mA ~ 30mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4431-B1-FM Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK240MHz ~ 930MHz256kbps13dBm (Max)-121dBm-SPI31.8 V ~ 3.6 V18.5mA17mA ~ 30mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4431-B1-FMR Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK240MHz ~ 930MHz256kbps13dBm (Max)-121dBm-SPI31.8 V ~ 3.6 V18.5mA17mA ~ 30mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4432-B1-FM Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK240MHz ~ 930MHz256kbps20dBm (Max)-121dBm-SPI31.8 V ~ 3.6 V18.5mA85mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4432-B1-FMR Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK240MHz ~ 930MHz256kbps20dBm (Max)-121dBm-SPI31.8 V ~ 3.6 V18.5mA85mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4432-V2-FM Silicon Labs IC RF TXRX ISM1GHZ 20-VFQFN Not For New DesignsTxRx OnlyGeneral ISM < 1GHz-FSK, GFSK, OOK240MHz ~ 930MHz128kbps20dBm (Max)-118dBm-SPI31.8 V ~ 3.6 V18.5mA27mA ~ 80mA-40°C ~ 85°C20-VFQFN Exposed Pad
SI4720-B20-GM Silicon Labs IC RF TXRX VHF 20-UFQFN ActiveTxRx OnlyVHFFM Radio-76MHz ~ 108MHz----I²S, SPI32.7 V ~ 5.5 V16.8mA ~ 19.8mA18.3mA ~ 18.8mA-40°C ~ 95°C20-UFQFN Exposed Pad
SI4720-B20-GMR Silicon Labs IC RF TXRX VHF 20-UFQFN ActiveTxRx OnlyVHFFM Radio-76MHz ~ 108MHz----I²S, SPI32.7 V ~ 5.5 V16.8mA ~ 19.8mA18.3mA ~ 18.8mA-40°C ~ 95°C20-UFQFN Exposed Pad