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RFID involves contactless reading and writing of data into an RFID tag's nonvolatile memory through an RF signal. Low-frequency RFID devices typically consist of a transponder (tag) and reader.

To help you reach the extensive vertical markets that rely on RFID, we offer a broad range of contactless products. Our transponders operate within the 100 to 150 kHz bandwidth range. Our RFID chips are suitable for the smallest devices and require no external components, lowering your tag costs.

You can choose from a broad range of read or read/write devices, available as identification ICs (die on wafer, with optional gold bumps, or packaged die, e.g., micromodule, XDFN package) or as an entire transponder.

Key Features


  • Standards based — You can rely on the fact that we comply to industry-specific standards, such as ISO 11784/85 (FDX-B and FDX-A) for animal identification and waste management
  • Flexible modulation coding options — The chips can be easily configured to suit a broad array of modulation schemes: FSK, PSK ,ASK, Manchester, Bi-phase, NRZ direct coding, and more
  • Security — Our R/W transponders contain a unique identification number (UID) with traceability code
  • Low-power design — All RFIDs ICs are designed for low power consumption which extends the read/write operating distance
  • Development support — Internal test structures make verification and standard compliance testing convenient and time-efficient, even for designers with little prior RFID experience. Self-contained demonstration kits include an LCD and control buttons so you can interact with the RFID system. Source code, building blocks, and reference designs let you quickly evaluate and prototype complete system-level designs.
Device Family Summary Benefit Applications Key Parameters
100−150 kHz OTP Simplifies the production process and accelerates time to market. Contactless access control systems used in hotel room, office and parking lot applications as well as customer loyalty and membership cards OTP
100−150 kHz Read/Write Integrates components to reduce your bill of materials Contactless access control systems used in hotel room, office and parking lot applications as well as customer loyalty and membership cards On-chip EEPROM
125 kHz Transponder A range of packaging options, data rates, and memory sizes and security levels Contactless access control systems used in hotel room, office and parking lot applications and customer loyalty tags, industrial identification. factory automation and asset tagging 125 kHz

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