| Type RF Family/Standard Protocol Modulation Frequency Data Rate (Max) Power - Output Sensitivity Memory Size Serial Interfaces GPIO Voltage - Supply Current - Receiving | TxRx + MCU 802.15.4 Zigbee® - 2.4GHz - 8dBm -102dBm 512kB Flash, 64kB RAM ADC, SPI, TWI, UART 24 2.1 V ~ 3.6 V 27mA 31mA |