FSC-BT631D Nordic nRF5340 Bluetooth 5.3 LE Audio Transceiver Module

FSC-BT631D is composed of nRF5340 chipset, support BR/EDR and LE Audio.
By default, FSC-BT631D module is equipped with powerful and easy-to-use Feasycom firmware. It's easy to use and completely encapsulated. Feasycom firmware enables users to access Bluetooth functionality with simple AScll commands delivered to the module over serial interface - it's just like a Bluetooth modem.
Therefore, FSC-BT631D provides an ideal solution for developers who want to integrate Bluetooth wireless technology into their design.

Basic Parameter

Bluetooth Module ModelFSC-BT631D
Bluetooth versionBluetooth 5.3 
ChipsetNordic nRF5340
Dimension12mm x 15mm x 2.2mm
Transmit PowernRF5340 :+3 dBm
Operating temperature-30°C~85°C
Frequency2.402 - 2.480 GHz
Supply voltage3.3v

Main Features

  • BLE5.3+BR/EDR
  • LE Audio
  • Direction Finding
  • 2 Mbps,Advertising Extensions and Long Range
  • Class 1 Bluetooth power level supported
  • Bluetooth mesh
  • Thread, Zigbee and 802.15.4
  • NFC
  • Full-speed USB
  • Secure Key Storage
  • Low Complexity Communications Codec (LC3)
  • l²S and PDM audio interfaces
  • Capable of all angle-of-arrival (AoA) and angle-of-departure (AoD) roles in Bluetooth Direction Finding
  • Ultra-low-power radio


  • Home automation
  • LE Audio
  • Multimedia players
  • Medical application
  • True wireless earbuds


DatasheetFSC-BT631D-datasheet-V1.2-EN.pdfjuly 21, 2022
Dimensions 12 × 15 × 2.2 mm


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FSC-BT631D Nordic nRF5340 Bluetooth 5.3 LE Audio Transceiver Module
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