CLRC663 - Highly Integrated Transceiver

As the first member of NXP’s new generation of high-performance proximity contactless reader ICs, the CLRC663 combines robust multiprotocol support, high RF output power, and low-power card detection. High integration and a small housing make it ideal for small form-factor reader terminals, and a wide variety of contactless personal and infrastructure devices.


This new reader IC enables energy- and resource-efficient implementations by integrating low-power card detection. Its unique combination of features, paired with robustness and quality, creates a benchmark for the infrastructure industry, where installations with long lifetimes also need enhanced functionality. By supporting fast-mode SAM connection, in combination with NXP’s SAM AV2 product range, the CLRC663 makes it possible to create secure installations with the NXP MIFARE product range. Implementation of the initiator mode of P2P communication enables full support of NFC-based use cases in an infrastructure environment. To support mobile phones and the emerging use of credentials in different form factors and protocols, the device also integrates a large internal EEPROM, for fast, flexible configuration of register settings.

CLRC663 Features

  • Highly integrated analog circuitry to demodulate and decode responses
  • Buffered output drivers for connecting an antenna with the minimum number of external components
  • Supports ISO/IEC 14443 A/MIFARE, ISO/IEC 14443 B and FeliCa, P2P passive initiator mode in accordance with ISO/IEC 18092
  • Supports ISO/IEC15693, ICODE EPC UID and ISO/IEC 18000-3 Mode 3
  • Typical operating distance in read/write mode for communication to a ISO/IEC 14443A/MIFARE up to 12 cm depending on the antenna size and tuning
  • Supports MIFARE classic encryption in read/write mode
  • Supports higher transfer speed communication up to 848 kbit/s
  • Supported host interfaces
    - SPI up to 10 Mbit/s
    - Two I²C-bus interfaces up to 400 kBd in fast mode, up to 1000 kBd in fast mode plus
    - RS232 Serial UART up to 1228.8 kBd, with voltage levels dependent on pin voltage supply
  • FiFo buffer handles 512 byte send and receive
  • Flexible interrupt modes
  • Hard power down
  • Standby mode
  • Programmable and cascadable timers
  • Oscillator circuit for connection to 27.12 MHz quartz crystal
  • 3.3...5 V power supply with Integrated voltage regulators for 1.8 V analog and digital core supplies
  • Free programmable I/O pins (GPIO0/SIGIN; SIGOUT)
  • IntegerN PLL providing clock for standard microcontroller used frequencies
  • Low power card detection
  • Boundary scan interface
  • Integrated free-running low power oscillator
  • True random number generator

CLRC663 Block Diagram
Silica NXP CLRC663 bd

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