Product Overview
The CLRC663 Reader Module V1 is a robust multi-protocol NFC/HF RFID reader designed for industrial integration and high-demand consumer applications. Powered by the NXP CLRC66303 IC, this module overcomes the limitations of standard readers by offering extended read ranges (up to 9cm), native support for industrial protocols (ISO15693), and flexible connectivity.
Unlike common consumer modules, the CLRC663 V1 features a dual-power architecture: it utilizes a 5V input to drive the RF antenna for maximum performance while maintaining a 3.3V logic interface for direct compatibility with modern microcontrollers like ESP32 and STM32.
Key Features
- Full Protocol Support: Reads ISO/IEC 14443A/B (MIFARE, NTAG), FeliCa, and crucially, ISO/IEC 15693 (ICODE SLIX/Vicinity Cards) for long-range industrial tagging.
- Superior Read Range: Optimized 4-turn PCB antenna and 5V RF driver achieve up to 9cm read distance with standard PVC cards.
- Tri-Interface Connectivity: Select between SPI, I2C, or UART instantly via the on-board DIP switch. No soldering required—just align the switch visually with the PCB silkscreen.
- Low Power Card Detection (LPCD): Hardware-supported low-power polling allows the module to sleep and wake the host MCU only when a card is presented, ideal for battery-operated locks.
- SAM Ready: Dedicated I2C port for connecting NXP SAM (Secure Access Module) AV2/AV3 for high-security key storage and encryption.
- Ready for Development: Open-source Arduino/ESP32 library available on GitHub.
Comparison: CLRC663 vs. PN532
While the PN532 is a popular legacy chip, the NXP CLRC66303 represents the next generation of high-performance readers. See why CLRC663 is the superior choice for reader applications:
| Feature | CLRC663 Module (This Product) | Standard PN532 Module | Verdict |
|---|---|---|---|
| Industrial Protocol (ISO15693) | (Reads ICODE / Vicinity tags) | CLRC663 is essential for industrial/inventory tracking. | |
| Read Range | High (Up to 9cm with 5V RF supply) | Medium (Typically 3-5cm) | CLRC663 offers ~2x the range due to higher transmitter current. |
| Power Saving | (Low Power Card Detection) | (Often requires host polling) | CLRC663 is better for battery devices. |
| Card Emulation / HCE | Use PN532 if you need to emulate a phone/card. |
Typical Applications
- Industrial Automation: Identification of trays and assets on conveyor belts using long-range ISO15693 tags.
- Smart Door Locks: Ultra-low power consumption with LPCD “wake-on-radio” functionality.
- Professional Access Control: Fast reading of employee badges (MIFARE DESFire/Plus).
- Secure Terminals: Financial-grade security possible via the external SAM interface extension.
Technical Specifications
| Core IC | NXP CLRC66303 |
|---|---|
| Operating Frequency | 13.56 MHz |
| RF Supply Voltage (Pin 1) | 4.5V – 5.5V (5.0V Recommended for max range) |
| Logic / IO Voltage (Pin 8) | 2.5V – 5.0V Input (Must match your MCU, e.g., 3.3V for ESP32) |
| Host Interfaces | SPI, I2C, UART (Selected via DIP Switch) |
| Antenna | Integrated 4-turn PCB Antenna (~39mm x 42mm) |
| Dimensions | 40.02 mm x 42.36 mm |
| Mounting | 2 x M3 Mounting Holes |
Package & Customization
- Standard Package: 1 x CLRC663 Reader Module V1 .
Customization Options (MOQ 500 pcs)
We offer customization services for volume orders to fit your specific integration needs:
- Chip Variant: Can be built with MFRC630 or SLRC610 if simplified protocols are preferred.
- Hardware: Connector changes, antenna tuning adjustments, or PCB redesigns.
Resources & Downloads
