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NXP Semiconductors CLRC66303HNE
- Part No.:
- CLRC66303HNE
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
CLRC66303HNE.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:147
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Product details
Overview
CLRC66303HNE 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 HF modes. It delivers up to 848 kbit/s transfer speed for MIFARE Classic, integrates a 512-byte FIFO buffer, and operates from 2.5 V to 5.5 V supply. It serves as the RF front-end in contactless reader systems for secure access control terminals.
For engineers reviewing the CLRC66303HNE datasheet, CLRC66303HNE pinout, CLRC66303HNE application, or CLRC66303HNE equivalent, key selection considerations include its HVQFN32 wettable-flank package, dual transmitter outputs (TX1/TX2), dedicated SAM I²C interface, low-power card detection (LPCD) enhancements over CLRC66301/02, and support for three host interfaces (SPI, UART, I²C).
Technical Context
The CLRC66303HNE implements a fully integrated analog front-end with two independent 13.56 MHz transmitter outputs (TX1, TX2) and differential receiver inputs (RXP/RXN), enabling robust antenna matching and extended read range up to 12 cm. Its digital baseband handles ISO/IEC 14443-A framing, CRC, parity, and MIFARE Classic encryption in hardware.
It features a dedicated SAM interface (separate I²C bus), five programmable timers including Timer4 for wake-up from standby, and flexible LPCD configuration via the LPCD_OPTIONS register - a distinguishing capability of the CLRC66303 variant not available in earlier versions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 V to 5.5 V - enables direct integration with 3.3 V or 5 V microcontroller systems without level-shifting. |
| Max Data Rate | 848 kbit/s (MIFARE Classic) - supports high-throughput transactions in transit fare collection and secure credential reading. |
| FIFO Size | 512 bytes - reduces host CPU overhead by buffering full command/response frames during burst transfers. |
| Operating Temp | −40 °C to +105 °C - qualified for industrial and automotive-adjacent embedded reader applications. |
| Power-Down Current | 8 nA typical - enables battery-powered devices to maintain ultra-low standby power while retaining card presence detection. |
| Host Interfaces | SPI (10 Mbit/s), I²C (Fast-mode Plus, 1000 kBd), UART (1228.8 kBd) - provides layout flexibility across MCU platforms with varying peripheral availability. |
| LPCD Capability | Enhanced register-based configuration (LPCD_OPTIONS) - allows fine-tuning of sensitivity and timing for small-form-factor antennas in space-constrained designs. |
Pinout & Package
CLRC66303HNE is packaged in HVQFN32 (SOT617-1), a 5 mm × 5 mm × 0.85 mm thermally enhanced quad flat no-lead package with wettable flanks for automated optical inspection (AOI) and reliable solder joint quality verification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1 / TX2 | RF Transmitter Outputs | Deliver modulated 13.56 MHz carrier to antenna matching network; dual outputs support differential or diversity antenna configurations. |
| RXP / RXN | Differential RF Receiver Inputs | Accept demodulated signal from antenna; differential input improves noise immunity and extends read range. |
| IRQ | Interrupt Request Output | Asserts active-low signal to host MCU upon completion of Tx/Rx, timer expiry, card detection, or FIFO threshold events. |
| PDOWN | Power-Down Input | Active-high signal that places device into 8 nA power-down state; resets internal logic and disables all analog blocks. |
| SCL / SDA | Dedicated SAM I²C Bus | Isolated I²C interface for secure access module - prevents SAM communication interference with main host interface. |
| IFSEL0 / IFSEL1 | Host Interface Selection | Configure pin multiplexing to select SPI, UART, or I²C mode for multifunction interface pins IF0–IF3. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Protocol Support | Hardware-accelerated handling of ISO/IEC 14443A/B, FeliCa, ISO/IEC 15693, and P2P passive initiator - eliminates need for external protocol co-processors. |
| MIFARE Classic Encryption | On-die cryptographic engine for MIFARE Classic authentication and data encryption - reduces host MCU computational load and latency. |
| Low-Power Card Detection | Configurable LPCD_OPTIONS register enables optimized sensitivity tuning for compact antennas - critical for handheld and wearable readers. |
| Integrated PLL | Derives system clock from 27.12 MHz crystal - eliminates external clock generator and simplifies BOM. |
| Wettable Flank Packaging | HVQFN32 with solderable side terminations - enables automated AOI and improves manufacturing yield in high-volume SMT lines. |
Applications
| Access Control Terminal | Gaming Kiosk |
|---|---|
Use Scenario: Contactless credential validation at office building entry points with tamper-resistant enclosure and offline credential storage. IC Role / Device Role / Timing Role: NFC frontend managing RF field generation, card polling, and encrypted MIFARE Classic transaction execution under host MCU control. Use Value: Achieves >10 cm read distance using compact PCB antenna and maintains <8 nA standby current during idle periods between badge presentations. | Use Scenario: Player account login and balance top-up on self-service casino kiosks operating in high-interference environments. IC Role / Device Role / Timing Role: Dual-transmitter NFC interface synchronizing with host application processor to handle concurrent FeliCa (Japan) and MIFARE (global) card formats. Use Value: Supports 424 kbit/s FeliCa and 848 kbit/s MIFARE throughput to minimize transaction time and reduce queue formation. |
| Industrial Asset Tag Reader | Secure Mobile Point-of-Sale |
Use Scenario: Ruggedized handheld scanner identifying ISO/IEC 15693 ICODE tags on factory equipment for maintenance logging. IC Role / Device Role / Timing Role: Vicinity protocol frontend performing anti-collision, UID read, and memory block access with CRC-16 error checking. Use Value: Leverages 512-byte FIFO to buffer multi-block reads from large-capacity ICODE SLIX2 tags without host intervention. | Use Scenario: EMV-compliant mobile POS terminal accepting contactless bank cards and transit credentials via single-reader hardware. IC Role / Device Role / Timing Role: RF front-end implementing EMV contactless protocol stack at physical layer, including subcarrier modulation and ASK envelope shaping. Use Value: Meets EMV RF-level compliance requirements while enabling secure SAM co-location via dedicated I²C bus. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CLRC66302HN,157 | Same core functionality but 3.0–5.5 V supply range and no LPCD_OPTIONS register; HVQFN32 package without wettable flanks. | Limited to fixed LPCD thresholds; unsuitable for miniaturized antennas requiring dynamic sensitivity adjustment. | Select only for legacy designs where CLRC66303HNE's enhanced LPCD and wettable flanks are unnecessary. |
| PN5180A0HN/C1 | Successor NFC frontend with integrated voltage regulator, lower active current (12 mA), and extended temperature range (−40 °C to +105 °C); same HVQFN32 footprint. | Requires updated firmware for register mapping and lacks separate SAM I²C bus - SAM must share main host interface. | Choose for new designs prioritizing power efficiency and simplified power delivery, accepting trade-off in SAM isolation. |
Compared with CLRC66302HN,157, CLRC66303HNE offers superior LPCD configurability and manufacturability via wettable flanks; compared with PN5180A0HN/C1, it retains dedicated SAM security isolation but consumes more active current and lacks integrated regulation.
Availability
CLRC66303HNE is available at Aetrix Electronics and suitable for access control terminals, gaming kiosks, industrial asset tag readers, and secure mobile point-of-sale systems requiring stable component supply across multi-year production cycles.
Supply support for CLRC66303HNE 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.
The CLRC663 product line delivers high-integration NFC frontends designed for cost-sensitive, high-reliability contactless reader systems requiring multi-standard interoperability and low-power operation.
FAQ
What is the primary function of the CLRC66303HNE in an NFC reader system?
The CLRC66303HNE serves as the complete RF analog front-end and digital baseband controller for contactless reader systems. It generates and modulates the 13.56 MHz carrier, demodulates incoming signals, handles ISO/IEC 14443-A/B, FeliCa, ISO/IEC 15693, and P2P protocol framing, and interfaces with the host MCU via SPI, UART, or I²C. The CLRC66303HNE offloads low-level RF processing and cryptographic operations (e.g., MIFARE Classic authentication) from the host, enabling efficient, standards-compliant NFC transactions.
How does the CLRC66303HNE differ from the CLRC66301 and CLRC66302 variants?
The CLRC66303HNE differs in three key ways: (1) wider supply voltage range (2.5 V–5.5 V vs. 3.0 V–5.5 V), (2) introduction of the LPCD_OPTIONS register for fine-grained low-power card detection tuning, and (3) availability in HVQFN32 with wettable flanks - a manufacturing enhancement absent in CLRC66301/02. These features make CLRC66303HNE the recommended version for new designs requiring flexibility with small antennas or automated optical inspection.
Does the CLRC66303HNE support EMV contactless payment certification?
Yes, the CLRC66303HNE complies with EMV contactless protocol specifications at the RF physical layer, including ASK modulation depth, subcarrier frequency, and timing parameters defined in EMVCo Book 2. While the CLRC66303HNE handles the RF layer, full EMV Level 1 certification requires validation of the complete system - including antenna design, matching network, host firmware stack, and secure element integration - per EMVCo test procedures.
What is the purpose of the dedicated SAM I²C interface on the CLRC66303HNE?
The dedicated SAM I²C interface on the CLRC66303HNE provides electrically isolated, protocol-independent communication between the NFC frontend and a Secure Access Module (e.g., NXP's SE050). This separation prevents interference between SAM commands and main host traffic, ensures deterministic timing for cryptographic operations, and enhances security by limiting attack surface - a requirement for payment and eID applications where key storage and signing must be physically and logically segregated from the application processor.
Can the CLRC66303HNE drive multiple antennas simultaneously?
The CLRC66303HNE features two independent transmitter outputs (TX1 and TX2) and one differential receiver pair (RXP/RXN), enabling support for antenna switching or diversity reception - but not true simultaneous multi-antenna operation. To drive multiple antennas concurrently, external RF switches (e.g., SPDT/SP4T) controlled by GPIOs (such as the eight programmable I/O pins) are required. Antenna tuning and impedance matching must be individually optimized for each antenna path to maintain performance and regulatory compliance.
CLRC66303HNE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- RFID Reader/Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443
- Interface:
- I2C, SPI, UART
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -25°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-HVQFN (5x5)
CLRC66303HNE FAQ
1.How can I place an order for CLRC66303HNE through Aetrix?
Please submit a Request for Quotation (RFQ) for CLRC66303HNE 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 CLRC66303HNE reliable?
The price and inventory of CLRC66303HNE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLRC66303HNE is usually 5 days.
3.What payment methods are accepted for CLRC66303HNE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLRC66303HNE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLRC66303HNE?
CLRC66303HNE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLRC66303HNE 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 CLRC66303HNE?
For technical support, including CLRC66303HNE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLRC66303HNE requirements.
6.How does Aetrix verify that CLRC66303HNE is sourced from the original manufacturer or authorized distributors?
All CLRC66303HNE 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 CLRC66303HNE meets industry standards.
7.What is the process for return or replacement of CLRC66303HNE?
All CLRC66303HNE units undergo pre-shipment inspection (PSI). If there is an issue with CLRC66303HNE, 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 CLRC66303HNE part is unused and in its original packaging.
Return procedure for CLRC66303HNE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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