Wi-Fi 4 1x1 single-band and Bluetooth® 5.4 combo IC Infineon’s AIROC™ CYW43439 single-chip combo device features 1x1 single-band 2.4 GHz Wi-Fi 4 (802.11n) and Bluetooth® 5.4. CYW43439 is an ideal solution for low-cost applications with small form factor and BOM(Bill of Materials) requirements to minimimize production implementation costs. The CYW43439 adds updated Bluetooth® capabilities, WPA3, DPP for Wi-Fi Easy Connect™, enhanced Soft AP and shared SDIO host interface for Wi-Fi + Bluetooth®.