Home Wireless connectivity Long range Sub-1 GHz products Sub-1 GHz transceivers
Home
Wireless connectivity
Long range Sub-1 GHz products
Sub-1 GHz transceivers

CC1121

ACTIVE

High performance low power Sub-1 GHz wireless transceiver

Order now
Data sheet
Errata

CC1121

ACTIVE
Data sheet Order now

Product details

Protocols 6LoWPAN, IEEE 802.15.4, Proprietary, Wireless M-Bus Modulation scheme (G)MSK, 2(G)FSK, 4(G)FSK, ASK, OOK Frequency bands 136.7-160, 164-192, 205-240, 273.3-320, 410-480, 820-960 Type Transceiver TX power (max) (dBm) 16 Sensitivity (best) (dBm) -120 RX current (lowest) (mA) 17 Data rate (max) (Mbps) 0.2 Rating Catalog Operating temperature range (°C) -40 to 85 Edge AI enabled No
Protocols 6LoWPAN, IEEE 802.15.4, Proprietary, Wireless M-Bus Modulation scheme (G)MSK, 2(G)FSK, 4(G)FSK, ASK, OOK Frequency bands 136.7-160, 164-192, 205-240, 273.3-320, 410-480, 820-960 Type Transceiver TX power (max) (dBm) 16 Sensitivity (best) (dBm) -120 RX current (lowest) (mA) 17 Data rate (max) (Mbps) 0.2 Rating Catalog Operating temperature range (°C) -40 to 85 Edge AI enabled No
VQFN (RHB) 32 25 mm² 5 x 5
  • High-Performance, Single-Chip Transceiver
    • Excellent Receiver Sensitivity:
      • –120 dBm at 1.2 kbps
      • –110 dBm at 50 kbps
    • Blocking Performance: 86 dB at 10 MHz
    • Adjacent Channel Selectivity: 60 dB
    • Very Low Phase Noise: –111 dBc/Hz at 10-kHz Offset
  • Separate 128-Byte RX and TX FIFOs
  • WaveMatch: Advanced Digital Signal Processing for Improved Sync Detect Performance
  • Support for Seamless Integration With the CC1190 Device for Increased Range Giving up to 3-dB Improvement in Sensitivity and up to +27-dBm Output Power
  • Power Supply
    • Wide Supply Voltage Range (2.0 V to 3.6 V)
    • Low Current Consumption:
      • RX: 2 mA in RX Sniff Mode
      • RX: 17-mA Peak Current in Low-Power Mode
      • RX: 22-mA Peak Current in High-Performance Mode
      • TX: 45 mA at +14 dBm
    • Power Down: 0.12 µA (0.5 µA With eWOR Timer Running)
  • Programmable Output Power up to +16 dBm With 0.4-dB Step Size
  • Automatic Output Power Ramping
  • Configurable Data Rates: 1.2 to 200 kbps
  • Supported Modulation Formats: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, MSK, OOK
  • RoHS-Compliant 5-mm x 5-mm No-Lead QFN 32-Pin Package (RHB)
  • Regulations – Suitable for Systems Targeting Compliance With
    • Europe: ETSI EN 300 220, ETSI EN 54-25
    • US: FCC CFR47 Part 15, FCC CFR47 Part 24
    • Japan: ARIB STD-T108
  • Peripherals and Support Functions
    • Enhanced Wake-On-Radio Functionality for Automatic Low-Power Receive Polling
    • Includes Functions for Antenna Diversity Support
    • Support for Retransmissions
    • Support for Auto-Acknowledge of Received Packets
    • TCXO Support and Control, also in Power Modes
    • Automatic Clear Channel Assessment (CCA) for Listen-Before-Talk (LBT) Systems
    • Built-in Coding Gain Support for Increased Range and Robustness
    • Digital RSSI Measurement
    • Temperature Sensor
  • High-Performance, Single-Chip Transceiver
    • Excellent Receiver Sensitivity:
      • –120 dBm at 1.2 kbps
      • –110 dBm at 50 kbps
    • Blocking Performance: 86 dB at 10 MHz
    • Adjacent Channel Selectivity: 60 dB
    • Very Low Phase Noise: –111 dBc/Hz at 10-kHz Offset
  • Separate 128-Byte RX and TX FIFOs
  • WaveMatch: Advanced Digital Signal Processing for Improved Sync Detect Performance
  • Support for Seamless Integration With the CC1190 Device for Increased Range Giving up to 3-dB Improvement in Sensitivity and up to +27-dBm Output Power
  • Power Supply
    • Wide Supply Voltage Range (2.0 V to 3.6 V)
    • Low Current Consumption:
      • RX: 2 mA in RX Sniff Mode
      • RX: 17-mA Peak Current in Low-Power Mode
      • RX: 22-mA Peak Current in High-Performance Mode
      • TX: 45 mA at +14 dBm
    • Power Down: 0.12 µA (0.5 µA With eWOR Timer Running)
  • Programmable Output Power up to +16 dBm With 0.4-dB Step Size
  • Automatic Output Power Ramping
  • Configurable Data Rates: 1.2 to 200 kbps
  • Supported Modulation Formats: 2-FSK, 2-GFSK, 4-FSK, 4-GFSK, MSK, OOK
  • RoHS-Compliant 5-mm x 5-mm No-Lead QFN 32-Pin Package (RHB)
  • Regulations – Suitable for Systems Targeting Compliance With
    • Europe: ETSI EN 300 220, ETSI EN 54-25
    • US: FCC CFR47 Part 15, FCC CFR47 Part 24
    • Japan: ARIB STD-T108
  • Peripherals and Support Functions
    • Enhanced Wake-On-Radio Functionality for Automatic Low-Power Receive Polling
    • Includes Functions for Antenna Diversity Support
    • Support for Retransmissions
    • Support for Auto-Acknowledge of Received Packets
    • TCXO Support and Control, also in Power Modes
    • Automatic Clear Channel Assessment (CCA) for Listen-Before-Talk (LBT) Systems
    • Built-in Coding Gain Support for Increased Range and Robustness
    • Digital RSSI Measurement
    • Temperature Sensor

The CC1121 device is a fully integrated single-chip radio transceiver designed for high performance at very low-power and low-voltage operation in cost-effective wireless systems. All filters are integrated, thus removing the need for costly external SAW and IF filters. The device is mainly intended for the ISM (Industrial, Scientific, and Medical) and SRD (Short Range Device) frequency bands at 274–320 MHz, 410–480 MHz, and 820–960 MHz.

The CC1121 device provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and Wake-On-Radio. The main operating parameters of the CC1121 device can be controlled through an SPI interface. In a typical system, the CC1121 device will be used with a microcontroller and only a few external passive components.

The CC1121 device is a fully integrated single-chip radio transceiver designed for high performance at very low-power and low-voltage operation in cost-effective wireless systems. All filters are integrated, thus removing the need for costly external SAW and IF filters. The device is mainly intended for the ISM (Industrial, Scientific, and Medical) and SRD (Short Range Device) frequency bands at 274–320 MHz, 410–480 MHz, and 820–960 MHz.

The CC1121 device provides extensive hardware support for packet handling, data buffering, burst transmissions, clear channel assessment, link quality indication, and Wake-On-Radio. The main operating parameters of the CC1121 device can be controlled through an SPI interface. In a typical system, the CC1121 device will be used with a microcontroller and only a few external passive components.
filter Find other Sub-1 GHz transceivers
Download View video with transcript Video

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 27
Top documentation Type Title Format options Date
* Data sheet CC1121 High-Performance Low-Power RF Transceiver datasheet (Rev. G) PDF | HTML 14 Jan 2026
* Errata CC112x, CC1175 Silicon Errata (Rev. D) 24 Apr 2015
Application note Antenna Impedance Measurement and Matching PDF | HTML 22 Mar 2022
Application note DN035 -- Antenna Quick Guide (Rev. B) 09 Feb 2022
Application note Debugging Communication Range (Rev. A) PDF | HTML 23 May 2019
Application note DN403 -- CC112x/CC120x On-Chip Temperature Sensor (Rev. D) 24 Oct 2018
White paper Wireless Connectivity For The Internet of Things, One Size Does Not Fit All (Rev. A) 16 Oct 2017
Application note CC-Antenna-DK2 and Antenna Measurements Summary (Rev. A) 02 Oct 2017
Application note Achieving Optimum Radio Range (Rev. A) 05 Sep 2017
Application note CC112x-CC1190 Boost Software Examples 19 Oct 2015
Application note CC1120-CC1190 BoosterPack 05 Oct 2015
Application note Asynchronous channel hopping system for FCC 15.247 compliance 07 Jul 2015
Application note TI LPRF EASYMODE 12 Dec 2014
Application note CC112X/CC120X On-Chip Battery Monitor 03 Dec 2014
Application note Antenna Diversity 23 Oct 2014
White paper Long-Range RF Communication: Why Narrowband is the de Facto Standard 08 Mar 2014
Application note CC112x/CC120x RX Sniff mode with Smart Preamble 23 Oct 2013
Application note CC112x/CC120x RX Sniff Mode (Rev. A) 09 Oct 2013
User guide CC112x/CC1175 Low-Power High Performance Sub-1 GHz RF Transceivers User’s Guide (Rev. E) 26 Sep 2013
Application note AN112 -- Using CC1190 Front End With CC112x/CC120x Under EN 300 220 (Rev. C) 21 Jun 2013
Application note AN110 – Using CC1190 Front End with CC112x/CC120x under FCC 15.247 (Rev. B) 13 Jun 2013
Application note AN115 -- CC112x/CC1175/CC120x Operation in 274-320 MHz Frequency Band (Rev. A) 13 Jun 2013
Application note AN121 – Wireless M-Bus Implementation with CC112x/CC120x High Performance Transc 20 Feb 2013
Application note DN510 -- CC112X RSSI and CS Response Time 05 Dec 2012
Application note DN038 -- Miniature Helical PCB Antenna for 868 MHz or 915/920 MHz 27 Nov 2012
Application note DN040 -- Reduced Battery Current Using CC112x, CC1175_and CC1200 with TPS62730 02 Oct 2012
Application note DN039 -- IPC for 868/915 MHz operation with the CC112x, CC117x and CC12xx 20 Aug 2012

Design & development

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

Evaluation board

SMARTRFTRXEBK — SmartRF Transceiver Evaluation Board

The SmartRF Transceiver Evaluation Board (TrxEB) is intended to be used together with Texas Instruments’ low-power RF transceivers for evaluation, performance testing and software development.

The following transceiver evaluation modules are supported:

  • CC1101EM*
  • CC11xLEM*
  • CC112xEM*
  • CC1175EM*
  • CC1200EM*
  • (...)
User guide: PDF
Not available on TI.com
Daughter card

CC1121EMK-868-915 — CC1121 Evaluation Module Kit 868-915MHz

The CC1121 Evaluation Module Kit for 868-915 MHz can be used in conjunction with the CC1120 Development Kit to evaluate the operation of the Perfomance Line RF-IC at these particular frequency bands. The CC1120DK is required for operation and needs to be ordered separately.

Not available on TI.com
Code example or demo

SWRC253 — CC112x Software Examples

Supported products & hardware

Supported products & hardware
Download
Support software

SWRC219 — TrxEB RF PER Test Software

Supported products & hardware

Supported products & hardware
Download
CAD/CAE symbol

CC112x–CC1190 BoosterPack 915/868 MHz Reference Design (Rev. A)

SWRR145A.ZIP (4039 KB)
Download
Calculation tool

SMARTRF-STUDIO-7 — SmartRF Studio 7 application software

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 (...)

Supported products & hardware

Supported products & hardware
Download options
Design tool

SIMPLELINK-SUB1GHZ-DESIGN-REVIEWS — Hardware design reviews for SimpleLink™ CC1xxx devices

To get started with the SimpleLink™ Sub-1GHz 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 CC1xxx product page links below).
  • Step 2: (...)
View Options
Schematic

CC1121EM 868/915 MHz design files

SWRC224.ZIP (716 KB)
Download
Schematic

CC1120_CC1190EM_915MHz design files 1.0.1

SWRR089.ZIP (957 KB)
Download
Schematic

CC1120-CC1190EM868 design files

SWRR092.ZIP (942 KB)
Download
Schematic

CC1120 Skyworks EM 30 dBm 915 MHz design files

SWRR110.ZIP (2121 KB)
Download
Schematic

CC1120 Skyworks EM 30 dBm 169 MHz Design Files (Rev. A)

SWRR111A.ZIP (2866 KB)
Download
Package Pins CAD symbols, footprints & 3D models
VQFN (RHB) 32 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
Information included:
  • Fab location
  • Assembly location

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos