Sigfox Module

Low Power Wide Area Network (LPWAN) Wireless Module

Murata has developed several small form factor LPWAN modules that support Sigfox communication. It is "Sigfox Verified" certified, enabling easy installation on customer's devices. Type ABZ ( Sigfox ) uses a STMicro STM32-based wireless microcontroller and SX1276 Semtech RFIC, operates in 860 to 930MHz frequency band. It provides a nominal output power of +14 dBm that can be boosted to +20 dBm for long range or poor signal location applications.

To learn more about Murata Sigfox modules lineup
To learn more about “What is LPWA?”
To obtain Sigfox's credential key
*User Guide to Credential Key Acquisition
To learn more about "Murata's LPWA strategy"


Murata Icon X What is Sigfox?

Sigfox is a global IoT network to achieve cost effectiveness, energy efficiency and long range area coverage. Billions of objects worldwide will be connected to the Internet. Data will be stored in the cloud and will participate in the digitalization of the environment. Having a global, simple, low-cost and low-power connectivity solution is fundamental. Sigfox addresses this challenge by deploying a low-bandwidth dedicated network, already present in 45 countries and regions.

(*KYOCERA Communications Systems Co., Ltd. - Sigfox Operator in Japan)

Sigfox's Coverage

Sigfox provides an inexpensive, reliable, low power solution to connect sensors and devices. The Sigfox protocol focuses  on:

From hardware used in devices to network, Sigfox optimizes every step to be as cost effective as possible   Extremely low energy consumption for years of battery life
  No configuration, connection request or signalling. Up and running straight out of the box
  No large assets or media, only small notifications
Uplink payload: 0 to 12 bytes
Downlink payload: 0 to 8 bytes
Up to 140 messages per day per device
  Due to its low cost and ease of configuration, Sigfox can be used as a secondary solution to any other type of network (eg: Wi-Fi, Bluetooth, GPRS, etc.)

Sigfox is a public network. Devices rely on the infrastructure deployed by the local Sigfox operator to communicate.


In addition to its connectivity service, Sigfox offers a location service for all devices equipped with a Sigfox-Verified module, without GPS. There's no need to retrofit to upgrade specific hardware, or to update software. The so-called Sigfox Atlas service is suitable for use cases where metric precision isn't needed. For example, to track moving items through complex supply chains.

Discover Sigfox geolocation service

Device maker located in an area where Sigfox is not yet present,
can buy a Sigfox SDR Dongle

For more information, please sign up

Sigfox Zones

The Sigfox global network operates in different radio-frequency bands throughout the world. Multiple radio configurations exist:
Zone 1: Europe, Oman, South Africa
Zone 2: USA, Mexico, Brazil
Zone 3: Japan
Zone 4: Australia, New Zealand, Singapore, Taiwan, Hong Kong, Colombia, Argentina

To post a question, share or exchange knowledge on Sigfox, please sign-up : Sigfox Operations Knowledge Base

Sigfox Technology

Sigfox has designed its technology and network to meet the requirements of mass IoT applications - long device battery life-cycle, low device cost, low connectivity fee, high network capacity, and long range. Sigfox offers a software based communications solution, where all the network and computing complexity are managed in the Cloud, rather than on the devices. Thus, drastically reduces energy consumption and costs of connected devices. The high quality of service of the Sigfox network relies on spatial diversity coupled with the time and frequency diversity of the radio frame repetitions. 
For a quick overview on Sigfox Technology, please check here.

Radio Signal Modulation (Ultra Narrow Band)
Using the Ultra Narrow Band modulation, Sigfox operates in the 200 kHz of the publicly available band to exchange radio messages over the air. Each message is 100 Hz wide and transferred at 100 or 600 bits per second a data rate, depending on the region. Long distances can be achieved while being very robust against the noise.

Lightweight Protocol for Small Messages
SIGFOX has tailored a lightweight protocol to handle small messages. Less data to send means less energy consumption, therefore, a longer battery life.

Small Payload
An uplink message has up to 12-bytes payload and takes an average 2s over the air to reach the base stations which monitors the spectrum looking for UNB signals to de-modulate. For a 12-byte data payload, a Sigfox frame will use 26 bytes in total. The payload allowance in downlink messages is 8 bytes.

Sigfox Star Network Architecture
A device is not attached to a specific base station unlike cellular protocols. The broadcasted message is received by any base station in the range, which is 3 in average.

Uplink Connectivity
The radio messages emitted by the connected devices are harvested by the Sigfox base stations, then transmitted to the Sigfox cloud and pushed to the end user's IT platform.

Some useful presentation videos to give you a head start.

Sigfox Certification Types

[Module Certification]
Sigfox VerifiedTM

If you wish to develop your own solution or develop a full integrated Sigfox module, you will need to go through the Sigfox Verified™ certification process.
This certification will allow you to integrate Sigfox connectivity using Sigfox Library, which implements the Sigfox protocol.  
To learn more about Sigfox Verified™ certification, please visit here.

[End-product Certification]
Sigfox ReadyTM

Pre-requisites to apply for Sigfox Ready™ certification are: 
- Device must use a Sigfox Verified™ radio solution, such as a module or reference design. 

- Device is based on another Sigfox Ready™ device and complies with the rules described in the “Sigfox Ready™ similarity rules” .
To learn more about Sigfox Ready™certification, please visit here.

To learn more about Sigfox Certifications, please visit.

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Murata Icon X Sigfox Module(Product Information)

Part Number
Appearance & Dimensions Appearance of Murata LoRa Module
Dimensions of Murata LoRa Module "CMWX1ZZABZ078" 
12.5 x 11.6 x 1.76 mm (max.)
Supporting Zone  RCZ1, 2, 4 (*RCZ3 in plan) 
(Z1: Europe, Oman, South Africa Z2: USA, Mexico, Brazil Z3: Japan Z4: Australia, New Zealand, Singapore, Taiwan, Hong Kong, Columbia, Argentina ) 
Packaging Metal Shield Can
Chipset Semtech SX1276 ultra-long range spread spectrum wireless transceiver
MCU STMicro STM32L0 series
ARM Cortex M0+ 32 bit MCU
FLASH 192Kbytes
Antenna Configuration External
Host Interfaces UART/SPI/I2C
Other Interfaces GPIO/ ADC
LGA 57 pads
RF Tx Power +14dBm (+20dBm with PA boost)
Vdd 2.2V to 3.6V
Operating Temperature Range -40ºC to +85ºC
Certifications "Sigfox Verified" certified
More Information Product details
Additional Remarks  For more information

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Murata Icon X Evaluation Kit / Sample / Inquiry

Regarding the evaluation kit and sample request for TypeABZ (Sigfox):

Evaluation Kit Request for TypeABZ (Sigfox)

For those who wish to request for the evaluation kit
Contact us

Sample Request for TypeABZ (Sigfox)

For those who wish to purchase the samples
  Inventory Status (Distributor)

Inquiry on TypeABZ (Sigfox) module:

Please contact us


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