| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx + MCU General ISM/SRD < 1GHz - FSK, GFSK, OOK 240MHz ~ 960MHz 256kbps 20dBm -121dBm 16kB Flash, 768B RAM I²C, SPI, UART 15 1.8 V ~ 3.6 V 18.5mA 85mA |