The TiWi-uB1 Bluetooth® Smart module is a low-power 2.4 GHz Bluetooth® 4.0 (BLE) System-on-Chip in a cost effective, pre-certified footprint. This module comes loaded standard with firmware for network processor support. Alternatively applications can be developed and loaded into the integrated microcontroller, and function without the need for an external processor.


  • 2.4 GHz Bluetooth® Low Energy Systems
  • Human-Interface Devices (Keyboard, Mouse, Remote Control)
  • Sports and Leisure Equipment
  • Mobile Phone Accessories
  • Consumer Electronics


  • Bluetooth® Smart (Bluetooth® Low Energy v4.0)
  • RF Output Power: 0 dBm (Class 3) 
  • Miniature footprint: 11.6 mm x 17.9 mm
  • Low height profile: 2.3 mm
  • Certified with on module PCB trace and off module dipole antennas
  • Compact design based on Texas Instruments CC2541 Transceiver (256KB, 8KB RAM)
  • Multiple configuration options
    - Network processor interface for applications running on an external microcontroller
    - Single-Chip configuration, allowing applications running on internal microcontroller
  • Low power operation
  • RoHS compliant
  • Streamlined development with LSR design services


Standards Support Bluetooth® Low Energy v4.0
Operating Voltage 2.0V to 3.6V
Temp Range -40 to +85 °C
Transmit Power 0 dBm
Rx Sensitivity -94 dBm
Transmit Current
with DC/DC
12.6 mA, Transmit (0 dBm, no peripherals active, low mcu activity)
15.7 mA, Receive (standard mode, no peripherals active, low mcu activity)
 Antenna Options Integrated Hybrid™ Trace Antenna
External Antenna Option
Certifications FCC, IC, CE, Bluetooth® SIG
Bluetooth® Stack Complete Power-Optimized Stack
Controller and Host 
GAP - Central, Peripheral, Observer, or Broadcaster
ATT / GATT - Client and Server
SMP - AES - 128 Encryption and Decryption

Ordering Information

Description Part Number
TiWi-uB1 PCB Trace Antenna Module (Cut Tape) 450-0103C
TiWi-uB1 PCB Trace Antenna Module (Tape & Reel)
TiWi-uB1 RF Castellation Module (Cut Tape)
TiWi-uB1 RF Castellation Module (Tape & Reel) 450-0106R 
TiWi-uB1 EM Board, PCB Trace Antenna 450-0120
2.4 GHz Dipole Antenna with Reverse Polarity SMA Connector
U.FL to Reverse Polarity SMA Cable
Antenna, 2.4 GHz Waterproof Dipole for Reverse Polarity SMA Connector, IP67
Cable, Waterproof U.FL to Reverse Polarity SMA, 105mm, O-Ring Seal
Cable, Waterproof U.FL to SMA Bulkhead, 1.13mm dia, 210mm long, O-Ring


Description Part Number Download
Product Brochure 337-0135 Download
Datasheet 330-0132 Download
EM Board User Guide 330-0134 Download
Antenna Design Guide 330-0133 Download
SCH/PCB Models CAD Download (8-8-2013) 450-0103/106 Download
3D Models CAD Download (8-8-2013) 450-0103/106 Download
EM Board CAD Download (8-8-2013) 450-0120 Download

Software, Firmware and Apps

Description Link
WLAN and Bluetooth® Radio Tools User Guide 330-0069
Bluetooth® Eval Tool 930-0030

The Bluetooth® Smart TiWi-uB1 module with System-on-Chip (SoC) does not come flashed with any firmware. The user is required to flash the desired application into the module. A hex file for the HostTestApp (v1.3.2) with FREQTUNE set to 0x07 is available for download.

Any firmware that runs on the TiWi-uB1 module should set the FREQTUNE register to a value of 0x07. This ensures the module will be on frequency during Bluetooth® operation.

HostTestApp (v1.3.2)
Mobile App Source Files

LSR TiWi-uB1 EM Board Demo
The TiWi-uB1 EM board demo provides several custom GATT profiles showcasing the flexibility of the TiWi-uB1 module. The demo showcases battery, temperature sensor, GPIO, and range test profiles allowing for an easy performance evaluation of the module.

TiWi-uB1 EM Link Demonstration



  1. Do I need to use a 32,768 Hz crystal with the TiWi-uB1 module?

    A 32 kHz crystal is required in applications that use power savings, to maintain the connection timing required by BLE. If your application is line powered and does not use power savings, the timing is maintained by the 32 MHz crystal, and hence no 32 kHz crystal is required.

  2. Is the TiWi-uB1 module a single mode or dual mode device?

    The TiWi-uB1 is a single mode Bluetooth® Smart module, that supports Bluetooth® Low Energy (BLE) only.

  3. Can I develop my application directly on the TiWi-uB1 module?

    The TiWi-uB1 module is a System-On-Chip (SOC), that has an integrated microcontroller that can be used for application development.

  4. Can I use the TiWi-uB1 module in Network Processor mode?

    The TiWi-uB1 module can be used in conjunction with an external host processor or microcontroller, using the HCI command protocol over a UART or SPI interface.

  5. Which antennas are certified with the TiWi-uB1 module?

    The TiWi-uB1 module is certified with an on module PCB trace antenna. Additionally the module is also certified with the LSR 2.4 GHz Dipole and 2.4 GHz Waterproof Dipole antennas, used in conjunction with any of our U.FL to Reverse Polarity SMA cables. Note that the correct model of module needs to be ordered based on the antenna option being used (PCB Trace: 450-0103, Off Module: 450-0106). Consult the Antenna Design Guide for details on implementing the TiWi-uB1 module into your design with one of the above certified antenna options.


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Off-Site Support

Description Link
RF Testing Guide
This wiki page from TI explains in detail the different test modes supported by the TiWi-uB1. These test modes can be used for RF evaluation and production testing. In addition the LSR Bluetooth® Eval Tool provides the user easy access to these commands via a PC GUI.
TI Wiki
TI BLE Stack
The TI BLE stack provides many examples for rapid development of a BLE product. See the TI BLE wiki for more information. For development, IAR Embedded Workbench 8051 is required.
TI BLE Stack

Dev Kits & Antennas

Certified Antennas

2.4 GHz Waterproof Dipole Antenna, IP67
2.4 GHz Waterproof Dipole Antenna, IP67


  • For use with Wi-Fi, Bluetooth®, Bluetooth® Smart, ZigBee, and 2.4 GHz applications
  • Supports 2.4GHz modules
  • For reverse polarity SMA connector

IP67 Cables
2.4 GHz Dipole Antenna

2.4 GHz Dipole Antenna


  • For use with Wi-Fi, Bluetooth®, Bluetooth® Smart, ZigBee, and 2.4 GHz applications
  • Supports 2.4GHz modules
  • For reverse polarity SMA connector


Development Board

TiWi-uB1 EM Board, PCB Trace Antenna (#450-0120)
TiWi-uB1 EM Board, PCB Trace Antenna (#450-0120

Quality & Environmental

Description Part Number Download
REACH Chemical Analysis 344-0003 Download
TiWi-uB1 Module Declaration of Conformity (DoC) 330-0131 Download
TiWi-uB1 EM Board Declaration of Conformity (DoC) 330-0139 Download
EN 300 328 v1.8.1 Statement 330-0141 Download
Product Life Cycle Policy 330-0121 Download
EU RoHS (2011/65/EU) 330-0137 Download
WEEE Statement 330-0136 Download
Conflict Minerals Statement 330-0128 Download