Small Form Factor Bluetooth Low Energy (BLE) Reference Design
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This design showcases the CC254x family of Bluetooth® low energy (BLE) wireless microcontrollers (MCUs) + a meandered F antenna in a compact form factor that can be soldered to an existing PCB. This reference design provides access to all I/Os of the BLE wireless MCU allowing the evaluation of BLE connectivity in existing systems. This design is compatible with Texas Instrumentss royalty-free BLE stack that include example applications for faster evaluation.

  • Automotive-qualified CC2541-Q1 available (Note: There is a slight pinout change from CC2541)
  • Provides reference design for Bluetooth Low Energy (BLE) antenna design- leveraging low cost trace antenna
  • Antenna performance provided in the test data
  • 22 Pin Functions are available
  • 2 SPI ports/ UART ports
  • I2C port
  • 2 GPIO ports with 20mA drive capability
  • 21 multiplex GPIOs
  • 8 ADC channels
  • 32 KHz-based sleep timer
  • BLE firmware and iOS app software is free of charge when used with TI radios or similar to help customers get to market faster

See the Important Notice and Disclaimer covering reference designs and other TI resources.


Schematic/Block Diagram

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Test Data

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Design Files

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CC2541-Q1  Automotive qualified SimpleLink Bluetooth® Low Energy wireless MCU  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CC2541-Q1 Download

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Technical documentation

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guide (2)
Title Type Size (KB) Date
PDF 266 11 Dec 2014
ZIP 1253 11 Dec 2014
Design files (4)
Title Type Size (KB) Date
ZIP 1664 13 Jul 2015
ZIP 304 11 Dec 2014
PDF 219 11 Dec 2014
PDF 182 11 Dec 2014
Related Tools & Software

Software development (1)

Name Part Number Software Type
Bluetooth Low Energy software stack  BLE-STACK  Driver or library 

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