Bluetooth BR/EDR Modules

Silicon Labs’ dual-mode Bluetooth basic rate/enhanced data rate (BR/EDR) - BLE modules target applications that require both Bluetooth Low Energy (LE) and Classic connectivity. These modules can connect to legacy devices that only support Bluetooth SPP or Apple® iAP3 profiles as well to devices that support Bluetooth LE. Silicon Labs BR/EDR modules integrate a high-performance Bluetooth radio, low-power ARM Cortex microcontroller and BGScript™ stack software.

BT122 can be used as a modem together with a separate host MCU, but applications can also be embedded into the built-in ARM® Cortex® MCU with the Silicon Labs BGScript scripting language.

Dual mode
BR/EDR, Bluetooth LE
Globally certified

Bluetooth BR/EDR Module Specs


  • Bluetooth v 4.2 compliant
  • Up to 6x BR/EDR connections or
  • Up to 7x BLE connections
  • 1x BR/EDR + 6x BLE connections simultaneously
  • Scatternet: 3 simultaneous piconets


  • UART host interfaces
  • UART and 2 x I2C peripheral interfaces
  • 10 GPIO
  • Three channel 12-bit ADC
  • Integrated antenna
  • 11.6 x 16.0 x 2.2 mm


  • TX power up to +12 dBm / +8 dBm (BLE)
  • RX sensitivity -96 dBm
  • 400-550 m LOS range

MCU Features:

  • ARM® Cortex®-M4
  • 40 MHz Clock Speed
  • Low Active Mode Current: 63 µA/MHz
  • 256 kB Flash, 32 kB RAM

Software Features:

  • BGAPI™ serial API over UART for NCP
  • BGScript™ scripting language
  • iWRAP compatibility for legacy WTxx
  • SPP, iAP3, HID Bluetooth profiles
  • Any GATT-based BLE profile
  • 1 Mbps throughput over SPP


  • Bluetooth 4.2 Host and Controller
  • FCC, ISEDC, CE, S. Japan, S. Korea and SRRC (China)


Find the Right Bluegtooth BR/ERD Module Select Columns
Select Columns
Part Number TX Power (dBm) RX Sensitivity (dBm) Typical Range Dimensions (mm)
+11 (BR/EDR) + 7 (BLE) -95 400-550 LoS range 11.6 x 16.0 x 2.2

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