ST25 UHF Readers

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A UHF RFID reader is a device using an Ultra-High Frequency (UHF) range, between 840 MHz and 960 MHz. Its extended read range compared to HF NFC readers enables one reader to interact with many tags at the same time, at a very high speed, within distances of tens of meters.

ST25RU Series: RAIN© UHF RFID single chip readers

uhf rfid reader ic st25ruST25RU3993 is the latest UHF RFID RAIN© reader IC from our ST25RU Series. It provides multiprotocol support for the 840-960 MHz UHF band and follows GS1's EPC UHF Gen2 air interface protocol.

Optimal performances combined with very low-power consumption makes it ideal for battery operated handheld devices, such as mobile phones, but also for a large diversity of consumer, industrial and medical applications.

Its high level of integration enables the design of a complete UHF RFID reader system, using only an external 8-bit microcontroller. This eliminates the need for a complex RFID co-processor.

View all ST25RU UHF RFID products

Compatible with:

  • ISO/IEC 18000-6C (EPC Class1 Gen2)
  • ISO/IEC 18000-6A/B through direct mode
  • ISO/IEC 29143 (Air interface for mobile RFID)

rain rfid

Key application examples:

  • Fast Moving Consumer Goods
  • Retail/Stationary Readers
  • Industrial PDA's
  • Mobile phones / Handheld
  • Consumer, Industrial and Medical Applications
  • Portable Data Capture
  • Supply chain, logistics, asset tracking
  • Cold chain management
  • IoT-based applications

UHF RFID reader evaluation board:

UHF Link Budget to support your design

Our UHF Link Budget helps you assess whether a UHF RFID reader can establish an RF link suitable to enable a reliable Reader/TAG communication by checking whether a reader can deliver sufficient power to the transponder and if the reader can detect the transponder response taking into consideration the TX power, all gains and losses in the reader-tag-reader round-trip. For a reliable UHF RFID forward link, the parameter Pt_absorbed should be above the limit Pt_min. For a reliable reverse link Preceive should be above PReader_sensitivity_limit.

To help the user the required input parameter fields are pre-filled with typical values.

UHF Link Budget

UHF Link Budget

Enhanced security with UHF crypto-extension software

Add a stronger level of security for warehouses, retail stores, chemists and more, with the state-of-the-art UHF crypto features available in the ST25RU3993 software ecosystem.

Gen2 crypto commands, based on AES128 and Grain-128A crypto suites, safeguard product authenticity, thanks to the embedded UHF tag.

New Java, C# and python software wrappers speed up the design of UHF RFID reader
Flexible UHF RFID Reader Now Bends Backwards,
Discover the ST25RU3993 and Its New APIs