Product details


Device type Wireless MCU Technology Bluetooth low energy Bluetooth standard Bluetooth 5.0 Flash (KB) 256 Features LE 1M PHY Rating Catalog Operating temperature range (C) -40 to 125 Approx. price (US$) 2.55 | 1ku open-in-new Find other Bluetooth Low Energy products

Package | Pins | Size

VQFN (RHA) 40 36 mm² 6 x 6 open-in-new Find other Bluetooth Low Energy products


  • True Single-Chip BLE Solution: CC2540T Can Run
    Both Application and BLE Protocol Stack, Includes
    Peripherals to Interface With Wide Range of
    Sensors, and so forth
  • Operating Temperature up to 125°C
  • 6-mm × 6-mm Package
  • RF
    • Bluetooth®:Low Energy Technology Compatible
    • Excellent Link Budget (up to 97 dB), Enabling
      Long-Range Applications Without External Front
    • Accurate Digital Received Signal-Strength
      Indicator (RSSI)
    • Suitable for Systems Targeting Compliance With
      Worldwide Radio Frequency Regulations:
      • ETSI EN 300 328 and EN 300 440 Class 2
      • FCC CFR47 Part 15 (US)
      • ARIB STD-T66 (Japan)
  • Layout
    • Few External Components
    • Reference Design Provided
    • 6-mm × 6-mm VQFN40 Package
  • Low Power
    • Active Mode RX Down to 19.6 mA
    • Active Mode TX (–6 dBm): 24 mA
    • Power Mode 1 (3-µs Wake Up): 235 µA
    • Power Mode 2 (Sleep Timer On): 0.9 µA
    • Power Mode 3 (External Interrupts): 0.4 µA
    • Wide Supply Voltage Range (2 V–3.6 V)
    • Full RAM and Register Retention in All Power Modes
  • TPS62730 Compatible,
    Low Power in Active Mode
    • RX Down to 15.8 mA (3-V Supply)
    • TX (–6 dBm): 18.6 mA (3-V Supply)
  • Microcontroller
    • High-Performance and Low-Power 8051
      Microcontroller Core
    • 256KB of In-System-Programmable Flash
    • 8KB of SRAM
  • Peripherals
    • 12-Bit ADC With Eight Channels and
      Configurable Resolution
    • Integrated Ultralow-Power Comparator
    • General-Purpose Timers (One 16-Bit, Two 8-Bit)
    • 21 General-Purpose I/O (GPIO) Pins
      (19 × 4 mA, 2 × 20 mA)
    • 32-kHz Sleep Timer With Capture
    • Two Powerful USARTs With Support for Several
      Serial Protocols
    • Full-Speed USB Interface
    • IR Generation Circuitry
    • Powerful Five-Channel DMA
    • AES Security Coprocessor
    • Battery Monitor and Temperature Sensor
    • Each CC2540T Contains a Unique 48-Bit IEEE
  • Bluetooth v4.0 Compliant Protocol Stack for
    Single-Mode BLE Solution
    • Complete Power-Optimized Stack, Including
      Controller and Host
      • GAP: Central, Peripheral, Observer, or
        Broadcaster (Including Combination Roles)
      • ATT and GATT: Client and Server
      • SMP: AES-128 Encryption and Decryption
      • L2CAP
    • Sample Applications and Profiles
      • Generic Applications for GAP Central and
        Peripheral Roles
      • Proximity, Accelerometer, Simple Keys, and
        Battery GATT Services
    • Multiple Configuration Options
      • Single-Chip Configuration, Allowing
        Application to Run on CC2540T
      • Network Processor Interface for Applications
        Running on an External Microcontroller
    • BTool: Windows PC Application for Evaluation,
      Development, and Test
  • Development Tools
    • CC2540T Mini Development Kit
    • SmartRF™ Software
    • Supported by IAR Embedded Workbench™
      Software for 8051
open-in-new Find other Bluetooth Low Energy products


The CC2540T device is a cost-effective, low-power, true wireless MCU for Bluetooth low energy applications. The CC2540T enables robust BLE master or slave nodes to be built with very low total bill-of-material costs, and it can operate up to 125°C. The CC2540T combines an excellent RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8KB of RAM, and many other powerful supporting features and peripherals. The CC2540T is suitable for systems where very low power consumption is required. Very low-power sleep modes are available. Short transition times between operating modes further enable low power consumption.

Combined with the low energy protocol stack from Texas Instruments, the CC2540TF256 forms the market’s most flexible and cost-effective single-mode Bluetooth low energy solution.

open-in-new Find other Bluetooth Low Energy products

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 34
Type Title Date
* Datasheet CC2540T Extended Industrial Temperature Bluetooth® Smart Wireless MCU datasheet (Rev. A) Nov. 30, 2015
* User guides CC253x/4x User's Guide (Rev. F) Apr. 10, 2014
User guides CC2540/41 Bluetooth Low Energy Software Developer’s Guide (Rev. I) Jan. 27, 2020
Application notes How to Certify Your Bluetooth Product (Rev. C) Sep. 24, 2019
White papers Wireless Connectivity For The Internet of Things, One Size Does Not Fit All (Rev. A) Oct. 16, 2017
User guides Getting started with Bluetooth low energy CC2541, CC2541-Q1, CC2540, & CC2540T f Jul. 11, 2017
Application notes AN119 - Using an External 32kHz Clock to Drive a CC254x Chip (Rev. A) Dec. 12, 2016
Application notes Bluetooth Low Energy Beacons (Rev. A) Oct. 19, 2016
More literature Dual-mode Bluetooth CC256x solutions (Rev. C) Feb. 03, 2016
User guides CC2540/41 Bluetooth Low Energy Software Developer’s Guide (Rev. G) Sep. 04, 2015
Technical articles Understanding wireless connectivity in industrial IoT applications Aug. 04, 2015
Solution guides Understanding Wireless Connectivity in the Industrial IoT Jul. 22, 2015
Application notes RemoTI™ Capacitive Touch Sensing (Rev. B) Dec. 16, 2014
Technical articles On the Fringe: Why Bluetooth Smart makes sense for industrial applications Sep. 25, 2014
White papers Three Flavors of Bluetooth: Which One to Choose? Mar. 25, 2014
Application notes AN100 - Crystal Selection Guide (Rev. C) Nov. 26, 2013
More literature TI: The IoT technology leader Nov. 01, 2013
More literature The Evolution of the Internet of Things Sep. 09, 2013
Application notes DN035 -- Antenna Quick Guide (Rev. A) Feb. 12, 2013
Application notes DN041 -- Using CC253X or CC254X with Dipole PCB Antenna Jan. 24, 2013
Application notes AN081 -- Johanson Technology Balun Optimized for CC253X, CC254X, CC257X, CC853X (Rev. B) Nov. 06, 2012
Application notes AN098 - Layout Review Techniques for Low Power RF Designs (Rev. A) Aug. 02, 2012
Application notes AN092 -- Measuring Bluetooth Low Energy Power Consumption (Rev. A) Apr. 19, 2012
Application notes AN097 - Current Savings in CC254x Using the TPS62730 (Rev. B) Feb. 08, 2012
More literature Bluetooth Low Energy 4-page brochure (Rev. A) Jan. 09, 2012
Application notes AN107 - Murata Balun for CC253x and CC254x, LFB182G45BG2D280 (Rev. A) Oct. 26, 2011
More literature TPS62730 Product Summary Oct. 05, 2011
Application notes AN103 -- Basic RF Testing of CCxxxx Devices Aug. 08, 2011
Application notes DN034 -- YAGI 2.4 GHz PCB Antenna Oct. 14, 2010
Application notes AN058 -- Antenna Selection Guide (Rev. B) Oct. 06, 2010
White papers WP001 -- Coin Cells And Peak Current Draw Sep. 28, 2010
Application notes DN031 -- CC-Antenna-DK Documentation and Antenna Measurements Summary Aug. 26, 2010
More literature CC2540 RC Demo [WMV] Nov. 06, 2009
More literature CC2540 Coin Cell Demo [WMV] May 13, 2009

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The CC2540 USB Evaluation Module Kit contains one CC2540 Bluetooth low energy USB Dongle. The dongle can be used to enable Bluetooth low energy on your PC. It can also be used as a packet sniffer for analyzing the BLE protocol and for software and system level debugging (use the free tool SmartRF (...)


The kit contains:

  • 1 x CC2540 USB Dongle
  • Quick Start Guide

Software development

Debugger and Programmer for RF System-on-Chips
CC-DEBUGGER The CC Debugger is a small programmer and debugger for the TI Low Power RF System-on-Chips. It can be used together with IAR Embedded Workbench for 8051 (version 7.51A or later) for debugging and SmartRF Flash Programmer for flash programming. The CC Debugger can also be used for controlling (...)

Contents in the box:

  • CC Debugger
  • Mini USB cable
  • 10-pin flat cable with 2x5 2.54mm connector
  • 10-pin flat cable with 2x5 1.27mm connector
  • Converter board 2.54mm-1.27mm connector
  • Documentation

CC-Debugger can be used to program and debug the following 8051-based system-on-chips from Texas Instruments:

  • CC1110 (...)

Bluetooth Low Energy software stack

BLE-STACK for CC26xx and CC13xx SimpleLink™ wireless MCUs

Texas Instruments royalty-free BLE-Stack software development kit (SDK) for TI’s SimpleLink™ Bluetooth® Low Energy family of ARM® Cortex®-M3 based wireless microcontrollers (MCUs) including the SimpleLink Bluetooth Low Energy CC2642R wireless (...)

SimpleLink™ SensorTag Software
SENSORTAG-SW The SensorTag includes an open hardware and software reference design for low cost and low power wireless IoT applications. The SensorTag is supplied with complete source code with everything you need to customize it for your application as well as source code examples for mobile apps.

Design tools & simulation

SmartRF Protocol Packet Sniffer
SmartRF Packet Sniffer 2

SmartRF Packet Sniffer 2 includes software and firmware to capture and display over-the-air packets. The capture device is connected to the PC via USB. SmartRF Packet Sniffer 2 supports the CC13xx and CC26xx family of devices as capture device and uses Wireshark for packet (...)

document-generic User guide
SmartRF Studio
SMARTRFTM-STUDIO SmartRF™ Studio is a Windows application that can be used to evaluate and configure Low Power RF devices from Texas Instruments. The application helps designers of RF systems to easily evaluate the radio at an early stage in the design process. It is especially useful for generation of (...)
document-generic User guide
  • Link tests. Send and Receive packets between nodes.
  • Antenna and radiation tests. Set the radio in continuous wave TX and RX states.
  • A set of recommended/typical register settings for all devices.
  • Read and write individual RF registers.
  • Execute individual commands to control the radio.
  • Detailed (...)
SWSC001B.ZIP (560 KB)
Hardware design reviews for SimpleLink™ CC2xxx devices
SIMPLELINK-2-4GHZ-DESIGN-REVIEWS To get started with the SimpleLink 2.4GHz hardware design review process:
  • Step 1: Before requesting a review, it is important that to review the technical documentation and design & development resources available on the corresponding product page (see CC2xxx product page links below).
  • Step 2: Fill out (...)

Reference designs

Bluetooth Low Energy Light Reference Design
TIDC-BLUETOOTH-LOW-ENERGY-LIGHT This reference design is an example of using the SimpleLink™ Bluetooth low energy CC2540T high temperature range wireless microcontroller in lighting applications. The board includes RGBW LEDs controlled by the CC2540T and is USB powered. The board can be controlled out-of-the-box by the TI BLE (...)
document-generic Schematic document-generic User guide
Standalone 2.4GHz Range Extender Reference Design
CC2592EMK-RD This standalone 2.4 GHz range extender reference design provides all the information needed to use the SimpleLink™ CC2592 range extender (PA/LNA front end) with any 2.4 GHz RF radio in a wide range of applications, including sensor mesh networks and gateways. The CC2592 range extender contains PA (...)
Bluetooth Low Energy (Bluetooth Smart) to RS-485 Gateway
TIDC-BLUETOOTH-SMART-TO-RS-485-GATEWAY Modbus is an application protocol for serial data transmission that often uses RS-485 for serial data transfer. This reference design implements a gateway between Modbus and the Bluetooth® Smart CC2540 wireless MCU. It serves as a replacement for wires in an RS-485 network, and it allows another (...)
document-generic Schematic document-generic User guide

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