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RFMicron Magnus® S3 Single Chip Sensor IC - (QFN) Pack

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  • RFMicron Magnus® S3 Single Chip Sensor IC - (QFN) | RFM-3300-BQ
  • RFMicron Magnus® S3 Single Chip Sensor IC - (QFN) | RFM-3300-BQ
  • RFMicron Magnus® S3 Single Chip Sensor IC - (QFN) | RFM-3300-BQ

 Product Description

RFMicron Magnus® S3 Single Chip Sensor IC - (QFN)

RFMicron’s Magnus® S3 single chip sensor IC enables a new class of fully-functional wireless passive sensors consisting of nothing more than the Magnus® S3 chip and an antenna – the same components needed for a conventional read-only RFID tag. RFMicron is driving a revolutionary change in the RFID market by providing single-chip sensing capability via affordable sensor tags for multiple stimuli such as moisture, pressure, proximity, and temperature. This innovation enables substantially lower cost, easily deployed, maintenance-free and battery-free, sensing solutions to business problems for improved product and quality control.The Magnus® S3 UHF RFID Sensor Tag IC is designed for use in EPCglobal™ Gen 2 (v. 2.0.0) and ISO/IEC 18000-6C compliant tags. It offers an unprecedented degree of user control and feedback, correction of interference and detuning conditions and allows for precise management of tag response.

Magnus® S3 ICs feature RFMicron’s patented Chameleon™ technology, Sensor Code, On-Chip RSSI Code and Temperature Code. Chameleon™, the first truly adaptive RFID front end, automatically adjusts the input impedance of the IC to optimally tune the tag to varying frequencies and environmental conditions.Sensor Code gives the user access to the Chameleon™ self-tuning circuit results as a 9-bit Sensor Code using a standard EPC Gen 2 READ command. The Sensor Code provides a direct measure of the antenna’s impedance. Based on the chosen antenna design and the effect of the environment on the impedance, changes in the Sensor Code indicate a change in the environment.

On-Chip RSSI Code is another capability unique to RFMicron. The On-Chip RSSI Code is a 5-bit digital output that can be read by the reader using standard EPC Gen2 commands and can be used as a data resource providing a direct measurement of the signal strength seen by the tag. This feature is useful in development, characterization and system installation to manage the response of large tag deployments. Magnus® S3 also includes an accurate temperature-sensing circuit, which generates the Temperature Code. The Temperature Code is a 12-bit number which can be read using a standard EPC Gen2 READ command. By retrieving the Temperature Code and applying a simple formula determined at calibration time, The Temperature Code can be converted into to a precise temperature measurement.

Product Overview  RFMicron Magnus® S3 Single Chip Sensor IC - (QFN)


Note: Product specifications can only be delivered post-purchase under NDA.

Recommended Pad Layout  RFMicron Magnus® S3 Single Chip Sensor IC - (QFN)


Why buy this chip?

The RFMicron’s Magnus® S3 single chip IC (QFN) technology offers correction of interference and detuning conditions to maximize read distance. This cost effective solution is equipped with sensors that respond to a variety of environmental stimuli and provides the economies of scale necessary to drive pervasive deployment into markets such as agriculture, automotive, construction, energy, perishables, and healthcare.


  • QFN (Quad Flat No-Lead) Package provides great vehicle for sensor tag prototypes.
  • Very Small form factor packages that enable very small sensor tags.
  • RFMicron’s patented Chameleon™ technology enables self-tuning highly consistent-performing passive tags.
  • 9-bit Sensor Code reports changes in impedance due to environmental effects.
  • On-Chip RSSI Sensor provides an unprecedented level of information on system performance.
  • 12-bit Temperature Sensor accuracy +/- 0.3 C from 0 - +50C; +/- 1.0 C -40 to +85 C.
  • Meets EPCglobal™ Gen2 (v. 2.0.0) and ISO/IEC 18000-6C requirements.
  • Worldwide operation in the RFID UHF band from 860 to 960 MHz.
  • User-accessible read-only and read/write memory.
  • 64-bit factory programmed unique Tag ID (read-only; unalterable).
  • 176-bit user memory.
  • 128-bit EPC™ code.
  • 32-bit Access and Kill passwords.

Example Applications

  • Cold chain temperature monitoring to proactively minimize spoilage
  • Measurement of curing temperatures in industrial manufacturing
  • Hot spot detection in electrical transmission systems
  • Animal farming detection of abnormal skin temperature
  • Measuring percentage moisture content in wood products
  • Incontinence detection in long-term care / hospital facilities
  • Sensing of wetness in applications sensitive to mold or corrosion
  • Water intrusion detection during automotive QC testing


Air Interface Protocol:
EPCglobal™ Gen 2 (v. 2.0.0), ISO/IEC 18000-6C
Operating Frequency:
Global (860-960 MHz)
IC Type:
Magnus® S3
EPC128-bit, User 176-bit, TID 64-bit
EPC Memory Content:
Initialized to all Fs (HEX)
Max Read Distance:
46 ft (14 m) - Sensor Tag in Free Space
Read Sensitivity:
-16.6 dBm
Write Sensitivity (EPC compliant):
-9.9 dBm
Data Retention:
10 years
Write and Erase Endurance:
10,000 cycles
Received RF Power:
+10 dBm (800-1000 MHz)
ESD Immunity:
1750 V (Human Body Model)
Tag Form Factor:
Sensor IC in Quad Flatpack No Lead Package (QFN)
0.06 x 0.06 x 0.02 in (1.6mm x 1.6mm x 0.4mm)
3.5 µg
Operating Temperature:
-40 to +85 ºC
Assembly Temperature:
150 ºC
Antenna connection
Antenna conneciton
Not connected - pads are for mechanical support and planarity after assembly. Must be electrically floating.

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