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Renesas PTX105R NFC Controller

An industry-first for IoT

The PTX105R by Renesas is an ideal NFC solution for small form factor IoT applications. Featuring high-sensitivity, accurate digital wave shaping, and a reduced BOM compared to conventional square-wave NFC controllers, this solution enables optimal interoperability, simplified FCC certification and faster NFC forum compliance.

Due to its modular Soft Controller architecture, the NFC functionalities are integrated into a split stack solution where time-critical operations are running on the on-chip MCU, and the rest of the NFC logic is in the host controller to carry out applications such as IOT reader and POS.


  • Output power up to 1W @5V
  • Very high Receiver sensitivity (-80dBc)
  • Sine Wave output
  • Accurate Digital Wave Shaping
  • Removal of second resonating structure introduced by EMI
  • DiRAC: Direct antenna connection
  • NFC Split Stack handling Time critical commands
  • Less packet exchanged between NFC and MCU
  • Customer accessible GPIOs


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