FSC-BW120 Wi-Fi 5 & Bluetooth 5.3 Module with SDIO/UART/PCM Interfaces


The Feasycom FSC-BW120 is a Wi-Fi & Bluetooth combo module that support 1-stream 802.11 ac solutions with Multi-user MIMO (Multiple-Input, Multiple-Output) STA mode with integrated Bluetooth Smart Ready controller, SDIO (SDIO 1.1/2.0/3.0) interface, and HS-UART mixed interface. It combines a WLAN MAC, a 11R capable WLAN baseband, and RF in s single chip. It provides a complete solution for a high-performance integrated wireless and Bluetooth device. FSC-BW120 Bluetooth controller complies with Bluetooth core specification v5.3, and supports dual mode (BR/EDR + Low Energy Controllers). It is compatible with previous versions, including v2.1 + EDR. For BR/EDR, it supports scatternet topology and allows active links in slave mode, and active links in master mode. For Low Energy, it supports multiple states and allows active links in master mode. The links in BR/EDR and LE can be active simultaneously.


  • Bluetooth 5.3 Dual Mode
  • CMOS MAC, Baseband PHY and RF in a single chip for IEEE 802.11 a/b/g/n/ac compatible WLAN
  • Supports 802.11ac 1x1, Wave-2 compliant with MU-MIMO STA mode
  • Complete 802.11n MIMO solution for 2.4GHz and 5Ghz band
  • UART and SDIO interfaces
  • Small size of 12 × 12 × 2.4 mm
  • Cost down solution
  • Supports WPA3 network security


  • Automotive
  • Home Automation
  • Home Audio
  • Industrial Control
  • Other IoT Applications


Wi-Fi BT Module FSC-BW121
Chipset Realtek RTL8821
Wi-Fi Standard 802.11 a/b/g/n/ac
Wi-Fi Frequency 2.4 GHz & 5 GHz
Wi-Fi Protocols TCP, UDP, HTTP
Wi-Fi Interface SDIO
Bluetooth Standard Bluetooth V5.3 (Dual Mode)
Bluetooth Profiles HFP, A2DP, PBAP, SPP, GATT
Bluetooth Interface UART/PCM
OTA Supports
Power Supply 3.0V~3.6V
Dimension (mm) 12 × 12 × 2.4
Operating Temperature -40℃ to +85℃
Storage Temperature -40℃ to +85℃

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