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NXP Semiconductors CLRC66302HN,557
- Part No.:
- CLRC66302HN,557
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CLRC66302HN,557.pdf
- Description:
- IC RFID READER 13.56MHZ 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,563
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Product details
Overview
CLRC66302HN,557 from NXP Semiconductors is a high-performance multi-protocol NFC frontend IC supporting ISO/IEC 14443A/B, FeliCa (JIS X 6319-4), ISO/IEC 15693, ISO/IEC 18092 P2P passive initiator, and EPC Class-1 HF modes. It delivers up to 848 kbit/s transfer speed in MIFARE Classic read/write mode, integrates a 512-byte FIFO buffer, and operates from 3.0 V to 5.5 V supply voltage.
For engineers reviewing the CLRC66302HN,557 datasheet, CLRC66302HN,557 pinout, CLRC66302HN,557 application, or CLRC66302HN,557 equivalent, this page provides verified technical context, exact pin functions for HVQFN32 packaging, real-world use cases in access control and industrial readers, and two validated alternative parts with documented functional differences.
Technical Context
The CLRC66302HN,557 implements dual transmitter outputs (TX1/TX2) for 13.56 MHz carrier generation, integrated PLL for clock derivation from 27.12 MHz crystal, and hardware-accelerated MIFARE Classic encryption. Its analog front-end handles full ASK modulation and subcarrier load demodulation without external active circuitry.
It supports three host interfaces-SPI (up to 10 Mbit/s), I²C (Fast-mode Plus at 1000 kBd), and UART (RS-232–compatible up to 1228.8 kBd)-with dedicated I²C for secure access module (SAM) connection. The interrupt controller uses IRQ0/IRQ1 registers with configurable sources including TxIRQ, RxIRQ, LPCDIRQ, and timer underflow events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0 V to 5.5 V - enables direct compatibility with 3.3 V and 5 V system rails without level-shifting. |
| Max Data Rate | 848 kbit/s (MIFARE Classic) - supports high-throughput card authentication and bulk data exchange in transit fare systems. |
| FIFO Size | 512 bytes - reduces host CPU overhead by buffering complete command/response frames during burst transfers. |
| Operating Temp | −25 °C to +85 °C - qualified for industrial reader deployments in uncontrolled ambient environments. |
| Power-Down Current | 8 nA typical - enables ultra-low-power card detection (LPCD) with extended battery life in portable readers. |
| Host Interfaces | SPI, I²C (Fast-mode Plus), UART - provides flexible integration with microcontrollers lacking native NFC peripherals. |
| Antenna Range | Up to 12 cm (ISO14443A/MIFARE) - achievable with optimized 5 × 5 cm loop antenna and proper tuning. |
Pinout & Package
HVQFN32 package (SOT617-1), 5 mm × 5 mm × 0.85 mm body, wettable flanks, MSL2, 32 terminals + central ground pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1 / TX2 | RF Transmitter Outputs | Deliver modulated 13.56 MHz carrier to antenna matching network; support differential or single-ended antenna drive configurations. |
| RXP / RXN | Differential RF Receiver Inputs | Accept weak induced signals from nearby cards; enable high-SNR demodulation of subcarrier load-modulated responses. |
| XTAL1 / XTAL2 | 27.12 MHz Crystal Interface | Drive internal PLL to generate precise system clock; XTAL1 accepts external 27.12 MHz clock if crystal omitted. |
| IF0–IF3 | Configurable Host Interface Pins | Multifunction pins assigned dynamically to SPI/I²C/UART signals based on IFSEL0/IFSEL1 configuration at power-up. |
| IRQ | Interrupt Request Output | Active-low signal indicating frame completion (TxIRQ/RxIRQ), card detection (LPCDIRQ), or timer underflow events. |
| PDOWN | Power-Down Control Input | High-level assertion places device in hard power-down mode with 8 nA quiescent current; resets internal state. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-protocol Support | Hardware-accelerated ISO/IEC 14443A/B, FeliCa, ISO/IEC 15693, and P2P passive initiator - eliminates need for external protocol stack offload. |
| Integrated SAM Interface | Dedicated I²C bus (SCL/SDA) isolated from main host interface - enables secure key storage and cryptographic operations without host exposure. |
| Low-Power Card Detection | Hardware-assisted LPCD mode with programmable sensitivity and wake-up timer (Timer4 + LFO) - achieves <10 µA average current in standby. |
| Flexible Power Architecture | Separate DVDD, AVDD, TVDD, PVDD supplies - allows independent noise isolation and voltage optimization for digital, analog, and RF sections. |
| Robust Interrupt System | Two 8-bit IRQ registers (IRQ0/IRQ1) with per-source enable/disable and global IRQ pin - simplifies real-time host response to asynchronous NFC events. |
Applications
| Access Control Reader | Industrial Asset Tagging |
|---|---|
Use Scenario: Secure door entry system reading MIFARE DESFire EV2 credentials and validating access rights via SAM-secured session keys. IC Role / Device Role / Timing Role: NFC frontend handling RF modulation/demodulation, frame assembly/disassembly, and crypto-offload coordination with SAM. Use Value: Enables EMV-compliant contactless authentication with hardware-enforced key protection and 848 kbit/s credential exchange for sub-200 ms unlock latency. |
Use Scenario: Ruggedized handheld scanner identifying ISO/IEC 15693 ICODE SLI-X tags on factory equipment during maintenance audits. IC Role / Device Role / Timing Role: Vicinity protocol transceiver managing long-range (up to 12 cm) tag polling, CRC validation, and anti-collision sequencing. Use Value: Delivers reliable read range beyond standard 10 cm limits using optimized TX1/TX2 drive strength and low-noise RXP/RXN receiver path. |
| Gaming Kiosk Authentication | Transit Fare Validator |
Use Scenario: Arcade cabinet verifying player identity via FeliCa-based Suica or PASMO cards before game session launch. IC Role / Device Role / Timing Role: FeliCa protocol engine performing 424 kbit/s bidirectional communication, framing, and error detection per JIS X 6319-4. Use Value: Meets Japan's transit card timing requirements with hardware CRC and Manchester/BPSK decoding - no firmware bit-banging required. |
Use Scenario: Bus-mounted validator processing MIFARE Classic 4 kB e-purse transactions with offline balance updates and transaction logging. IC Role / Device Role / Timing Role: High-speed MIFARE Classic read/write controller executing sector authentication, value block operations, and encrypted data transfer. Use Value: Achieves full e-purse transaction (<500 ms) using hardware AES acceleration and 512-byte FIFO to minimize host intervention. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CLRC66303HNE | Wettable flanks HVQFN32; adds LPCD_OPTIONS register and enhanced Load Protocol settings for small antennas. | Better suited for space-constrained designs with miniaturized antennas; supports lower-power card detection profiles. | Select CLRC66303HNE for new designs requiring improved LPCD flexibility or smaller PCB footprints. |
| PN5180A0HN/C1 | Single-chip NFC controller with integrated MCU core; supports same protocols but adds firmware-executed stack layers. | Reduces host processor dependency but increases BOM cost and firmware development effort. | Choose PN5180A0HN/C1 only when offloading full protocol stack execution to the NFC IC is required. |
Compared with CLRC66302HN,557, CLRC66303HNE offers superior LPCD configurability for compact readers, while PN5180A0HN/C1 shifts protocol handling to embedded firmware - making CLRC66302HN,557 optimal for host-controlled, cost-sensitive, and power-optimized industrial readers.
Availability
CLRC66302HN,557 is available at Aetrix Electronics and suitable for access control systems, industrial asset tracking, gaming kiosks, and transit fare validators requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CLRC66302HN,557 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with over 30 years of RFID/NFC innovation.
The CLRC663 product line delivers high-performance, multi-standard NFC frontends designed specifically for industrial-grade contactless readers requiring robust RF performance, low-power operation, and secure SAM integration.
FAQ
What is the primary function of the CLRC66302HN,557 in an NFC system?
The CLRC66302HN,557 serves as the analog and digital front-end for contactless communication, handling RF modulation/demodulation, protocol framing (ISO/IEC 14443A/B, FeliCa, ISO/IEC 15693), and host interface bridging. It does not execute higher-layer protocol stacks - those run on the external host microcontroller. CLRC66302HN,557 manages all physical layer signaling, CRC, parity, and timing-critical operations to offload the host CPU.
Does the CLRC66302HN,557 support MIFARE DESFire EV2 authentication?
Yes, the CLRC66302HN,557 supports MIFARE DESFire EV2 in read/write mode as part of its ISO/IEC 14443A compliance. It handles the RF layer, frame assembly, and cryptographic command routing to an external Secure Access Module (SAM) connected via its dedicated I²C interface. CLRC66302HN,557 itself does not perform AES encryption - that occurs in the SAM.
What is the maximum operating distance achievable with the CLRC66302HN,557?
The CLRC66302HN,557 achieves up to 12 cm read/write range with ISO/IEC 14443A and MIFARE Classic cards when paired with a properly tuned 5 × 5 cm loop antenna and optimal matching network. Range depends on antenna geometry, coil Q-factor, and environmental factors - CLRC66302HN,557's dual TX outputs and low-noise RX inputs maximize usable field strength within regulatory limits.
Can the CLRC66302HN,557 operate from a 3.3 V supply?
Yes, the CLRC66302HN,557 supports a 3.0 V to 5.5 V supply range (VDD), making it fully compatible with standard 3.3 V logic systems. All I/O pins are 3.3 V tolerant, and the internal voltage regulators (DVDD, AVDD, TVDD) derive appropriate rail voltages from the main supply. CLRC66302HN,557 requires no external level shifters when interfacing with 3.3 V microcontrollers.
How does the CLRC66302HN,557 handle low-power card detection (LPCD)?
The CLRC66302HN,557 implements hardware-assisted LPCD using its internal receiver path and Timer4 with LFO clock source. In LPCD mode, it periodically wakes to sample antenna signal amplitude and triggers LPCDIRQ upon card presence - drawing only ~10 µA average current. CLRC66302HN,557 does not require host polling, enabling true battery-operated standby operation for portable readers.
CLRC66302HN,557 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443, ISO 15693, 18000-3, MIFARE, NFC
- Interface:
- I2C, SPI, UART
- Voltage - Supply:
- 3V ~ 5.5V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HVQFN (5x5)
CLRC66302HN,557 FAQ
1.How can I place an order for CLRC66302HN,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for CLRC66302HN,557 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CLRC66302HN,557 reliable?
The price and inventory of CLRC66302HN,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLRC66302HN,557 is usually 5 days.
3.What payment methods are accepted for CLRC66302HN,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLRC66302HN,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLRC66302HN,557?
CLRC66302HN,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLRC66302HN,557 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CLRC66302HN,557?
For technical support, including CLRC66302HN,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLRC66302HN,557 requirements.
6.How does Aetrix verify that CLRC66302HN,557 is sourced from the original manufacturer or authorized distributors?
All CLRC66302HN,557 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CLRC66302HN,557 meets industry standards.
7.What is the process for return or replacement of CLRC66302HN,557?
All CLRC66302HN,557 units undergo pre-shipment inspection (PSI). If there is an issue with CLRC66302HN,557, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CLRC66302HN,557 part is unused and in its original packaging.
Return procedure for CLRC66302HN,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CLRC66302HN,557 Tags
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NXP Semiconductors
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