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Product details

Parameters

Protocols Bluetooth 5.0 Features LE 1M PHY Flash (KB) 256 CPU core 8051 Type Wireless MCU RAM (KB) 8 GPIO 23 Peripherals 12-bit ADC 8-channel, 2 SPI, 2 UART, 4 timers, I2C Security Cryptographic acceleration, Debug security, Device identity, Software IP protection Sensitivity (best) (dBm) -94 Operating temperature range (C) -40 to 85 Rating Catalog open-in-new Find other Bluetooth products

Package | Pins | Size

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

Features

  • RF
    • 2.4-GHz Bluetooth low energy Compliant and Proprietary RF System-on-Chip
    • Supports 250-kbps, 500-kbps, 1-Mbps, 2-Mbps Data Rates
    • Excellent Link Budget, Enabling Long-Range Applications Without External Front End
    • Programmable Output Power up to 0 dBm
    • Excellent Receiver Sensitivity (–94 dBm at 1 Mbps), Selectivity,
      and Blocking Performance
    • Suitable for Systems Targeting Compliance With Worldwide Radio
      Frequency Regulations: ETSI EN 300 328 and EN 300 440 Class 2 (Europe),
      FCC CFR47 Part 15 (US), and ARIB STD-T66 (Japan)
  • Layout
    • Few External Components
    • Reference Design Provided
    • 6-mm × 6-mm QFN-40 Package
    • Pin-Compatible With CC2540 (When Not Using USB or I2C)
  • Low Power
    • Active-Mode RX Down to: 17.9 mA
    • Active-Mode TX (0 dBm): 18.2 mA
    • Power Mode 1 (4-µs Wake-Up): 270 µA
    • Power Mode 2 (Sleep Timer On): 1 µA
    • Power Mode 3 (External Interrupts): 0.5 µA
    • Wide Supply-Voltage Range (2 V–3.6 V)
  • TPS62730 Compatible Low Power in Active Mode
    • RX Down to: 14.7 mA (3-V supply)
    • TX (0 dBm): 14.3 mA (3-V supply)
  • Microcontroller
    • High-Performance and Low-Power 8051 Microcontroller Core
      With Code Prefetch
    • In-System-Programmable Flash, 128- or 256-KB
    • 8-KB RAM With Retention in All Power Modes
    • Hardware Debug Support
    • Extensive Baseband Automation, Including Auto-Acknowledgment
      and Address Decoding
    • Retention of All Relevant Registers in All Power Modes
  • Peripherals
    • Powerful Five-Channel DMA
    • General-Purpose Timers (One 16-Bit, Two 8-Bit)
    • IR Generation Circuitry
    • 32-kHz Sleep Timer With Capture
    • Accurate Digital RSSI Support
    • Battery Monitor and Temperature Sensor
    • 12-Bit ADC With Eight Channels and Configurable Resolution
    • AES Security Coprocessor
    • Two Powerful USARTs With Support for Several Serial Protocols
    • 23 General-Purpose I/O Pins
      (21 × 4 mA, 2 × 20 mA)
    • I2C interface
    • 2 I/O Pins Have LED Driving Capabilities
    • Watchdog Timer
    • Integrated High-PerformanceComparator
  • Development Tools
    • CC2541 Evaluation Module Kit (CC2541EMK)
    • CC2541 Mini Development Kit (CC2541DK-MINI)
    • SmartRF™ Software
    • IAR Embedded Workbench™ Available

Software Features

  • Bluetooth v4.0 Compliant Protocol Stack for Single-Mode BLE
    Solution
    • Complete Power-Optimized Stack, Including Controller and
      HostGAP – Central, Peripheral, Observer, or Broadcaster
      (Including Combination Roles)ATT / GATT – Client and ServerSMP –
      AES-128 Encryption and DecryptionL2CAP
    • Sample Applications and Profiles
      • Generic Applications for GAP Central and Peripheral Roles
      • Proximity, Accelerometer, Simple Keys, and Battery GATT Services
      • More Applications Supported in BLE Software Stack
    • Multiple Configuration Options
      • Single-Chip Configuration, Allowing Applications to Run on CC2541
      • Network Processor Interface for Applications Running on an External
        Microcontroller
    • BTool – Windows PC Application for Evaluation, Development, and Test
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Description

The CC2541 is a power-optimized true system-on-chip (SoC) solution for both Bluetooth low energy and proprietary 2.4-GHz applications. It enables robust network nodes to be built with low total bill-of-material costs. The CC2541 combines the excellent performance of a leading RF transceiver with an industry-standard enhanced 8051 MCU, in-system programmable flash memory, 8-KB RAM, and many other powerful supporting features and peripherals. The CC2541 is highly suited for systems where ultralow power consumption is required. This is specified by various operating modes. Short transition times between operating modes further enable low power consumption.

The CC2541 is pin-compatible with the CC2540 in the 6-mm × 6-mm QFN40 package, if the USB is not used on the CC2540 and the I2C/extra I/O is not used on the CC2541. Compared to the CC2540, the CC2541 provides lower RF current consumption. The CC2541 does not have the USB interface of the CC2540, and provides lower maximum output power in TX mode. The CC2541 also adds a HW I2C interface.

The CC2541 is pin-compatible with the CC2533 RF4CE-optimized IEEE 802.15.4 SoC.

The CC2541 comes in two different versions: CC2541F128/F256, with 128 KB and 256 KB of flash memory, respectively.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 45
Type Title Date
* Datasheet CC2541 SimpleLink™ Bluetooth® low energy and proprietary wireless MCU datasheet (Rev. D) Jun. 24, 2013
* Errata CC2541 Errata Note Mar. 26, 2014
Application notes CE Regulations for SRDs Operating in License-Free 2.4GHz/5GHz Bands-WiFi Devices Apr. 15, 2020
Selection guides Leitfaden zur Auswahl drahtloser Kommunikationstechnologie Feb. 28, 2020
Selection guides 無線連線技術選擇指南 Feb. 28, 2020
Selection guides 무선 연결 기술 선택 가이드 Feb. 28, 2020
User guides CC2540/41 Bluetooth Low Energy Software Developer’s Guide (Rev. I) Jan. 27, 2020
Selection guides Wireless Connectivity Technology Selection Guide Dec. 17, 2019
Application notes How to Certify Your Bluetooth Product (Rev. C) Sep. 24, 2019
Technical articles Bluetooth® Low Energy shifts gears for car access Jul. 15, 2019
Technical articles Top 3 design challenges that the new generation of SimpleLink™ Wi-Fi® devices will help you overcome Feb. 21, 2019
Technical articles Exploring the impact of IoT on innovation Jul. 17, 2018
Technical articles An out-of-the-box Internet of Things: building a seamless and secure smart home network Jun. 12, 2018
Application notes Debugging Communication Range Mar. 27, 2018
White papers Wireless Connectivity For The Internet of Things, One Size Does Not Fit All (Rev. A) Oct. 16, 2017
Application notes CC-Antenna-DK2 and Antenna Measurements Summary (Rev. A) Oct. 02, 2017
User guides Getting started with Bluetooth low energy CC2541, CC2541-Q1, CC2540, & CC2540T f Jul. 11, 2017
Application notes ETSI EN 300 328 Blocking Test for Bluetooth Low Energy Feb. 08, 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
Application notes Voice Over Remote Control May 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
User guides CC253x/4x User's Guide (Rev. F) Apr. 09, 2014
White papers Three Flavors of Bluetooth: Which One to Choose? Mar. 25, 2014
White papers Wireless connectivity for the Internet of Things (IoT) with MSP430 MCUs Mar. 13, 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
User guides Gas Sensor Platform Reference Design Aug. 09, 2013
White papers Enabling secure portable medical devices with TI’s MSP430™ MCU Jun. 04, 2013
Application notes AN120 -- Using CC2590 Front End with CC2541 Mar. 13, 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 AN118 -- Flash programming of CC253x/4x devices Sep. 05, 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
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
Application notes DN031 -- CC-Antenna-DK Documentation and Antenna Measurements Summary Aug. 26, 2010

Design & development

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

Hardware development

DAUGHTER CARDS Download
document-generic User guide
99
Description

The CC2541 Evaluation Module Kit contains two CC2541 Bluetooth low energy Evaluation Modules, which can be used either as standalone modules (requires a power source and a simple carrier board like the SoC Battery Board, or connected to e.g. the SmartRF05EB Evaluation Boards (included in the (...)

Features

The CC2541EMK includes:

  • 2 x CC2541EM Evaluation Modules
  • 2 x 2.4 GHz Antennas
  • Documentation

 

DEVELOPMENT KITS Download
document-generic User guide
99
Description
The CC2541DK-MINI development kit provides a working reference design for software development of single-mode Bluetooth low energy (BLE) applications based on the Texas Instruments CC2541. The included "keyfob" board operates as a BLE peripheral device, and contains modifiable software that can be (...)
Features

The kit contains the following hardware components:


1 x CC2540 USB Dongle: This is the device that will be acting as the BLE Master. It connects to a Windows PC’s USB port, and is pre-loaded with the master demo application software.


1 x CC2541 Keyfob: This is the device that will be acting as the BLE (...)

DEVELOPMENT KITS Download
document-generic User guide
149
Description

The CC2541 Bluetooth Smart Remote Control Kit provides a reference platform for Bluetooth low energy remote control application development. It is based on TI's industry leading CC2541 Bluetooth low energy device and contains the hardware and tools required for evaluating, developing, testing, and (...)

Features

The kit contains:

  • 1 x CC2541 Advanced Remote Control
  • 1 x CC2540 USB Dongle
  • 1 x CC Debugger
  • Documentation

Software development

CODE EXAMPLES & DEMOS Download
SWRC257.ZIP (763 KB)
DEBUG PROBES Download
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 (...)
49
Features

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 (...)

DRIVERS & LIBRARIES Download
Bluetooth Low Energy software stack
BLE-STACK This royalty-free BLE-Stack for TI’s SimpleLink™ Bluetooth® Low Energy family of ARM® Cortex®-M3 based wireless microcontrollers (MCUs) includes full-featured Bluetooth 4.2 and Bluetooth 5 certified stacks with all necessary software, sample applications and documentation to (...)
SUPPORT SOFTWARE Download
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.
SUPPORT SOFTWARE Download
SWRC251B.ZIP (232 KB)
SUPPORT SOFTWARE Download
SWRC258Q.ZIP (34446 KB)

Design tools & simulation

CALCULATION TOOLS Download
Third party wireless module search tool
3P-WIRELESS-MODULES The third party wireless module search tool helps developers to identify products that meet their end equipment specifications and procure production ready wireless modules. The third party module vendors included in the search tool are independent third party companies with expertise in designing (...)
Features
  • Modules listed are based on TI wireless technology supporting Wi-Fi®, Bluetooth®, Zigbee®, Sub-1 GHz, Sigfox, 2.4 GHz, multi-band connectivity and more
  • Modules integrate clocks, SPI flash and passive components
  • Listings included for hardware customization, software integration and cloud services
  • Listings (...)
CALCULATION TOOLS Download
SmartRF Protocol Packet Sniffer
PACKET-SNIFFER The SmartRF Packet Sniffer is a PC software application that can display and store radio packets captured by a listening RF device. The capture device is connected to the PC via USB. Various RF protocols are supported. The Packet Sniffer filters and decodes packets and displays them in a convenient (...)
document-generic User guide
CALCULATION TOOLS Download
SmartRF Studio
SMARTRFTM-STUDIO SmartRF™ Studio is a Windows application that helps designers of RF systems to easily evaluate the radio at an early stage in the design process for all TI CC1xxx and CC2xxx low-power RF devices. It simplifies generation of the configuration register values and commands, as well as practical (...)
document-generic User guide
Features
  • 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 (...)
CALCULATION TOOLS Download
SWSC001C.ZIP (562 KB)
DESIGN TOOLS Download
Hardware design reviews for SimpleLink™ CC2xxx devices
SIMPLELINK-2-4GHZ-DESIGN-REVIEWS The SimpleLink hardware design review process provides a way to get in touch, one-on-one, with a subject matter expert that can help review your design and provide valuable feedback. A simple 3-step process for requesting a review as well as links to relevant technical documentation and resources (...)
ASSEMBLY DRAWINGS Download
SWRR125.PDF (496 KB)
ASSEMBLY DRAWINGS Download
TIDC154A.PDF (27 KB)
BILL OF MATERIALS (BOM) Download
SNVC113.PDF (102 KB)
BILL OF MATERIALS (BOM) Download
SWRR116.ZIP (865 KB)
BILL OF MATERIALS (BOM) Download
SWRR127.ZIP (89 KB)
BILL OF MATERIALS (BOM) Download
TIDR192.PDF (54 KB)
BILL OF MATERIALS (BOM) Download
TIDR194.PDF (98 KB)
BILL OF MATERIALS (BOM) Download
TIDR204A.PDF (97 KB)
GERBER FILES Download
SNVC114.ZIP (901 KB)
GERBER FILES Download
SWRR096.ZIP (820 KB)
PCB LAYOUTS Download
SWRR133.ZIP (661 KB)
SCHEMATICS Download
SNVC112.PDF (214 KB)
SCHEMATICS Download
SWRR126.PDF (697 KB)
SCHEMATICS Download
SWRR131A.ZIP (411 KB)
SCHEMATICS Download
TIDR191.PDF (186 KB)
SCHEMATICS Download
TIDR193.PDF (62 KB)
SCHEMATICS Download
TIDR203A.PDF (25 KB)

Reference designs

Many TI reference designs include the CC2541 Use our reference design selection tool to review and identify designs that best match your application and parameters.

CAD/CAE symbols

Package Pins Download
VQFN (RHA) 40 View options

Ordering & quality

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