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CYW54591 | Cypress Semiconductor


CYW54591 Features

Infineon’s AIROC™ CYW54591 single-chip combo device features 2x2 Dual-Band 2.4GHz and 5GHz Wi-Fi 5 (802.11ac) and Bluetooth 5.1. In IEEE 802.11ac mode, the WLAN operation supports rates of MCS0-MCS9 (up to 256 QAM) in 20 MHz, 40 MHz, and 80 MHz channels for data rates up to 867 Mbps. The CYW54591 offers Real Simultaneous Dual Band functionality enabling 1x1 connections on both the 2.4GHz and 5GHz bands at the same time.


Wi-Fi Features

  • Wi-Fi 5 (802.11ac), Dual-band (2.4/5 GHz)

  • Dual MAC Architecture: 2x2 MIMO or 1+1 RSDB modes

  • RSDB supports simultaneous 2.4GHz and 5GHz operation

  • 20/40/80 MHz channels, up to 867MHz PHY data rate

  • MU-MIMO (Wave 2) support in STA mode

  • Internal PA and LNA with support for external PA/LNAs

  • PCIe Gen1 (3.0 compliant), SDIO host interface

  • Memory provision for 802.11ai, DFS+RSDB, 10+ client support, NAN

Bluetooth Features

  • Class 1 (100 m) and Class 2 (10 m) operation

  • Bluetooth 5.1 Ready (AoA/AoD)

  • Bluetooth 5.0 (BR + EDR + BLE): Supports LE-2Mbps, LE-Long Range, LE-Advertising Extensions, Slot Availability Masks

  • Dedicated Bluetooth path for best Coex performance

  • UART host interface

General Features

  • Supports two concurrent data streams using Real Simultaneous Dual Band


  • 2-wire SECI for external BT/LTE

  • 3-wire GCI


  • 194-ball WLBGA package (5.16mm x 7.7mm, 0.4mm pitch)

Operating Temperature

  • -40C to 85C


  • IoT

  • Gateways

  • Smart Speakers

  • Audio

  • Printers

  • DTV

  • IP Cameras


CYW54591 Block Diagram

CYW54591 Block Diagram


Getting Started with the CYW54591

Document Type Title English
Datasheet CYW54591, Single-Chip Wi-Fi 5, 2×2 MAC/Baseband/Radio with RSDB and Bluetooth 5.1 for Commercial/Consumer Applications

Linux® Support

Linux drivers are available for several AIROC™ Wi-Fi products. Visit the Cypress community to learn more about Linux support.

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Linux Support


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