Small Form Factor Bluetooth Low Energy (BLE) Reference Design


Design files


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
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU690.ZIP (1253 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDC815A.ZIP (1664 K)

Detailed schematic diagram for design layout and components

TIDRC60.PDF (182 K)

Detailed schematic diagram for design layout and components

TIDRC61.PDF (219 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC814.ZIP (304 K)

Design file that contains information on physical board layer of design PCB


Includes TI products in the design and potential alternatives.

Automotive wireless connectivity products

CC2541-Q1Automotive qualified SimpleLink Bluetooth® Low Energy wireless MCU

Data sheet: PDF | HTML

Technical documentation

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View all 2
Type Title Date
User guide TIDA-00358 Quick Start Guide Dec. 11, 2014
Test report TIDA-00358 Test Results Dec. 11, 2014

Related design resources

Software development

BLE-STACK Bluetooth Low Energy software stack

Support & training

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