Features 2.4 GHz Direct Sequence Spread Spectrum (DSSS) radio transceiver Operates in the unlicensed worldwide Industrial, Scientific and Medical (ISM) band (2.400 GHz2.483 GHz) 21 mA operating current (Transmit @ 5 dBm) Receive sensitivity up to 97 dBm Sleep Current <1 μA Operating range: 10m - 500m DSSS data rates up to 250 kbps, GFSK data rate of 1 Mbps Auto Transaction Sequencer (ATS) - no MCU intervention Power Management Unit (PMU) for MCU/Sensor Fast Startup and Fast Channel Changes Separate 16-byte Transmit and Receive FIFOs AutoRate - dynamic data rate reception Receive Signal Strength Indication (RSSI) Battery Voltage Monitoring Circuitry Supports coin-cell operated applications Operating voltage from 1.8V to 3.6V Interface: SPI