Our RFID reader IC and chip portfolio covers the main frequency ranges, including 13.56 MHz ( High-Frequency) with HF NFC reader devices and 840-960 MHz ( Ultra-High Frequency) with UHF RFID reader devices.
RFID readers are devices able to setup communications and interact with a tag or a controller. There are 2 main types: fixed and portable RFID readers, which can operate at different frequency ranges depending on the target applications.
Key features of ST25R RFID reader series

Standard compliant
- ISO/IEC 14443A/B
- ISO/IEC 15693
- FeliCa
- ISO/IEC 18092
- NFC Forum
- EMVCo & PBOC
- ISO/IEC 18000
- ISO/IEC 29143
- Rain Alliance

Feature-rich
- 13.56MHz HF interface
- 840-960MHz UHF
- Very High Bit Rate
- Peer-to-Peer
- Automatic Antenna Tuning (AAT)
- Operating temperature -40°C to 125°C

Best-In-Class Reader IP
- High Output power (up to 1.4W)
- High Receiver sensitivity
- Capacitive / Inductive Wake Up
- Low power operation & Standby
- Dense Reader Mode (DRM)

RFID Ecosystem
- Documentation (application notes, datasheets, product presentation, videos...)
- Evaluation boards
- Antenna Design Tool
- Associated NFC/RFID software
- ST25 Community
Free Webinar Why ST's RFID readers are the right fit for challenging environments
Get instant access for free to our recorded webinar (28 minutes), covering:
- How to save power by implementing general, inductive, and capacitive wake-up functions
- How to implement automatic antenna tuning (AAT)
- How to use its high output power capabilities
NFC/RFID Calculators to support your design
Our NFC / RFID set of calculators can help you with your ST25 NFC (13.56MHz) or RFID (UHF) designs:
- NFC Inductance Calculator provides the inductance value of a 13.56MHz rectangular antenna based on your footprint requirements and it applies to all ST25 Tag and Reader products
- NFC Tuning Circuit Calculator provides the component values of the matching network for a given NFC antenna and it applies to ST25R Readers
- Link Budget calculator helps you assess whether a UHF RFID Reader can establish an RF link suitable for a reliable Reader /Tag communication and it applies to the ST25RU3993 Reader
NFC: A World of Opportunities
Learn about Near-Field Communication (NFC) technology and how ST helps you build the most effective and secure solutions for all your RFID/NFC applications.