BH678T Bluetooth 4.2 BLE Modules



BH678T module is a low cost, lowest power consumption Bluetooth Low Energy (BLE) module. Certified BLE 4.2 stacks (with Toshiba QDID) are embedded. 

Block DIagraM

BH678T Block Diagram

BH678T Block Diagram


  • Standalone or used with a host MCU by UART interface/HCI Commands
  • Bluetooth SIG certified BLE 4.2 stacks embedded in 256 KB mask-ROM.
  • At 3.3 mA peak current consumption, it has the lowest power consumption in the industry.
  • Toshiba SOC, built-in M0 processor
    • 384KB mask-ROM for Bluetooth stacks
    • 192KB RAM
    • 256KB flash, for Bluetooth profiles, user data and applications
  • Bluetooth RF analog core, baseband digital core and integrated antenna
  • Transmitter power 0 dBm; Receiver sensitivity: -93 dBm.
  • Bluetooth Low Energy (BLE) V4.2 GATT profile with OTA (Over The Air) support. 
  • Up to15 General Purpose IOs to be configured by firmware:
    • SPI interface, I2C interface
    • UART interface, 9600bps to 921.6 Kbps
    • Up to 2 wake up interfaces
    • Up to 3 ADC channels (1 for internal monitoring of VDD).
    • Up to 3 PWM channels
  • On board 26 MHz main clock
  • External 32.768 kHz sleep clock
  • Operation voltage: 1.8V-3.6V
  • Peak current consumption, 3.3 mA; deep sleep mode, 0.05uA
  • Integrated PCB trace antenna,
  • Bluetooth line of sight range with a smartphone, 60 meters (180 feet).
  • Operation Temperature: -40oC to +85oC            
  • Dimension: 16x14x1.9mm
  • Hybrid Castellated and LGA, 40 pins:  pins. Easier prototyping, easier production.
  • Integrated shield to resist EMI
  • Bluetooth SIG QDID: 66367 (Toshiba)


  • Wearable
  • Access Points
  • Industrial Control
  • Medical
  • Scanners
  • iOS and Android devices        
  • Wireless sensors
  • Cable replacement
  • Instrumentation
  • Automobile

DownLoad Document

Order Products

Unit price is $4.73 each in reel quantity or 1000 pcs

Sample price is $5.91 each in 10-pack.

Contact your local sale representatives for lead time and quotation for other quantities.

To order evaluation board and module samples:

BH678T, The lowest power Bluetooth 4.2 module, 3.3mA peak current
from 7.09

BH678T Bluetooth 4.2 module

3.3 mA peak current consumption

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EV-BH678T, Evaluation board for BH678T

Evaluation board for BH678T

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