| 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 250kbps 4.5dBm -97dBm 64kB Flash, 6kB RAM I²C, SPI, UART 23 2 V ~ 3.6 V 29.8mA 40.6mA |