Single-Chip 2.4 GHz IEEE 802.15.4 Compliant and ZigBee™ Ready RF Transceiver 48-VQFN -40 to 85
2.4GHz RF Transceiver, 250Kbps, SPI, QFN, -40 to 85C
RF Transceiver USE 839-CC2420T/R-R