Features
- NFC Architecture:
- Sine wave output (SCPA patented driver)
- Accurate digital wave shaping
- Direct Antenna Connection (DiRAC)
- NFC split stack software architecture
- RF Communication:
- ISO/IEC 14443-A/B reader/writer mode (up to 848kBit/s)
- ISO18092 reader/writer mode (FeliCa™, 212/424kbit/s)
- ISO/IEC 15693 reader/writer mode (up to 53kBit/s)
- Supports reading/writing of NFC tag type 2/3/4A/4B/5
- ISO/IEC 14443-A/B card emulation mode
- ISO/IEC 18092-FeliCa card emulation mode
- NFC Forum Peer-to-Peer (ISO 18092) initiator/target
- NFC Forum certification compliant
- NFC Antenna Tool available for antenna design and matching calculations
- NFC IoT Tuner available for browser-based NFC evaluation
- Packages:
- QFN44
- WLCSP33
Description
The PTX205R is a highly integrated, mid-power NFC controller for NFC Forum applications, supporting reader/writer, card emulation, and peer-to-peer modes. Its patented Switched-Capacitor Power Amplifier (SCPA) architecture enables a sine-wave driver that simplifies system integration, supports compact antenna designs, and ensures best-in-class interoperability with existing NFC ecosystems. The modular NFC Soft Controller (NSC) architecture, combined with the advanced Split Stack software framework, enables the separation of time-critical operations, executed on the on-chip MCU, from high-level functionality running on the host controller. The result is a streamlined design that ensures real-time responsiveness while enabling implementation on cost-efficient host systems.
Parameters
| Attributes | Value |
|---|---|
| Device Functions | NFC Reader (excluding EMVCo & Android) |
| Wireless Standard | NFC Forum Reader/Writer + Host Card Emulation + P2P |
| Protocol | ISO/IEC 14443-A/B, ISO18092, ISO/IEC 15693, NFC tag type 2/3/4A/4B/5 |
| Comm. Interface | SPI, I2C/I3C, UART |
| Software Support | OS/non-OS |
| Temp. Range (°C) | -40 to 105°C |
Product Comparison
 |  | |
| PTX205R | PTX105R | |
| Pkg. Type | VFQFPN, WLCSP | VFQFPN |
| Lead Count (#) | 33, 44 | 56 |
| Carrier Type | Reel | Reel |
| Moisture Sensitivity Level (MSL) | 1, 3 | 3 |
Application Block Diagrams
 | Mode 3 AC EV Charger Wallbox Scalable Mode 3 AC EV charging platform for residential and public charging applications. |
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Additional Applications
- Smart lock
- Matter hub devices
- Public transportation
- Air purifiers
- Toothbrushes
- E-Cigarette
- Printers
- Gaming
- Smart meters