| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx Only 802.15.4 Zigbee® 4GFSK, GFSK, GMSK, OOK 142MHz ~ 1.05GHz 1Mbps 13dBm -133dBm - SPI 4 1.8 V ~ 3.8 V 13mA 18mA |