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NXP Semiconductors CLRC66303EVY
- Part No.:
- CLRC66303EVY
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 36-VFBGA
- Datasheet:
-
CLRC66303EVY.pdf
- Description:
- NFC/RFID TAGS & TRANSPONDERS
- Quantity:
- Payment:
- Shipping:
Inventory:1,378
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Product details
Overview
CLRC66303EVY 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 is used in secure access control readers requiring low-power card detection and SAM integration.
For engineers reviewing the CLRC66303EVY datasheet, CLRC66303EVY pinout, CLRC66303EVY application, or CLRC66303EVY equivalent, key selection considerations include its dual-package support (HVQFN32/VFBGA36), dedicated SAM I²C interface, hardware-accelerated MIFARE Classic encryption, LPCD_OPTIONS register flexibility, and compliance with EMV contactless RF-level requirements.
Technical Context
The CLRC66303EVY implements a fully integrated analog front-end for 13.56 MHz NFC communication, including dual transmitter outputs (TX1/TX2), differential receiver inputs (RXP/RXN), and internal PLL clock synthesis from a 27.12 MHz crystal. Its digital baseband handles ISO/IEC 14443-A framing, CRC/parity, and FeliCa demodulation/decoding - offloading layer-2/3 protocol handling to the host controller.
It features five programmable timers (including Timer4 as a wake-up timer driven by an internal LFO), interrupt-driven operation via IRQ pin, and flexible host interfacing through SPI (up to 10 Mbit/s), UART (RS-232 compatible), or I²C (Fast-mode Plus, up to 1000 kBd). A separate I²C bus is reserved exclusively for Secure Access Module (SAM) connection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.5 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 transactions in transit fare collection and secure credential reading. |
| FIFO Buffer | 512 bytes - minimizes host CPU overhead during burst transfers and improves transaction latency in multi-tag environments. |
| Operating Temp | −40 °C to +105 °C - qualified for industrial and outdoor access control deployments with wide thermal margins. |
| Power-Down Current | 8 nA typical - enables battery-powered handheld readers to achieve multi-year standby life with periodic low-power card detection. |
| Host Interfaces | SPI (10 Mbit/s), I²C (Fast-mode Plus, 1000 kBd), UART (1228.8 kBd) - provides design flexibility across microcontroller ecosystems. |
| LPCD Flexibility | LPCD_OPTIONS register - allows fine-tuned sensitivity and timing configuration for small antennas, critical in compact wearable or IoT reader designs. |
Pinout & Package
CLRC66303EVY is available in VFBGA36 package (3.5 mm × 3.5 mm × 0.8 mm, 0.5 mm pitch, MSL3), optimized for space-constrained embedded NFC reader modules. The package includes wettable flanks on HVQFN32 variants but CLRC66303EVY specifically uses VFBGA36 per ordering code "EV" suffix.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| IF0–IF3 | Configurable host interface pins | Support dynamic assignment to SPI/I²C/UART functions - eliminates fixed-interface layout constraints. |
| IFSEL0 / IFSEL1 | Host interface selection inputs | Determine active interface mode at power-up; enable seamless firmware-driven interface switching. |
| IRQ | Interrupt request output | Asserts on Rx/Tx completion, FIFO alerts, timer underflow, or card detection - enables event-driven host firmware. |
| PVDD | Pad power supply | Supplies internal voltage regulator for analog/digital domains; requires local 100 nF decoupling. |
| TVDD / TVSS | Transmitter power and ground | Isolated power domain for RF output stage - prevents noise coupling into sensitive analog receiver paths. |
| RXP / RXN | Differential RF input | Accepts antenna signals with common-mode rejection - improves immunity to EMI in noisy industrial environments. |
| TX1 / TX2 | Dual 13.56 MHz carrier outputs | Drive external matching network; support antenna diversity or increased field strength via parallel drive. |
| XTAL1 / XTAL2 | 27.12 MHz crystal oscillator terminals | Enable precise RF carrier generation without external clock source - reduces BOM count and jitter. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware MIFARE Classic crypto | Accelerates authentication and data encryption in read/write mode - eliminates software crypto overhead and timing side-channel risks. |
| Dedicated SAM I²C interface | Offloads key storage and cryptographic operations to external secure element - meets EMVCo and Common Criteria requirements. |
| Low-Power Card Detection (LPCD) | Configurable via LPCD_OPTIONS register - extends battery life in portable readers while maintaining reliable card presence sensing. |
| EMV contactless RF compliance | Meets RF-level requirements of EMV contactless specification - simplifies certification for payment terminal designs. |
| Integrated PLL clock synthesis | Derives system clock from 27.12 MHz crystal - eliminates need for external clock generator and reduces PCB area/cost. |
Applications
| Access Control Reader | Transit Fare Validator |
|---|---|
Use Scenario: Wall-mounted or desktop reader authenticating employee badges in office buildings or secure facilities. IC Role / Device Role / Timing Role: NFC frontend managing RF field generation, tag modulation/demodulation, and secure MIFARE DESFire EV2 session establishment. Use Value: Hardware-accelerated crypto and 12 cm typical read range ensure fast, reliable credential verification even with misaligned or shielded cards. | Use Scenario: Handheld validator used by transit staff to check contactless smartcards or mobile wallets onboard buses or trains. IC Role / Device Role / Timing Role: Multi-protocol frontend supporting ISO/IEC 14443A (MIFARE), FeliCa, and ISO/IEC 15693 for regional interoperability. Use Value: 848 kbit/s transfer speed and 512-byte FIFO reduce tap-and-go transaction time to under 300 ms, improving passenger throughput. |
| Industrial Asset Tag Reader | Secure IoT Gateway |
Use Scenario: Ruggedized tablet reader scanning NFC-enabled maintenance tags on factory equipment or HVAC units. IC Role / Device Role / Timing Role: Low-power card detector initiating full RF activation only upon tag presence - conserving battery during idle periods. Use Value: LPCD_OPTIONS register enables optimization for small loop antennas (<5 cm²), fitting compact industrial form factors without sacrificing detection reliability. | Use Scenario: Edge gateway authenticating NFC-based security tokens before granting access to cloud-connected industrial controllers. IC Role / Device Role / Timing Role: Frontend interfacing with host MCU over SPI while routing encrypted commands to external SAM via dedicated I²C. Use Value: Dual I²C interfaces isolate SAM traffic from main host bus - preventing side-channel leakage and meeting FIPS 140-2 Level 3 physical security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN5180A0HN/C1 | Single-chip NFC controller with integrated MCU core; supports same protocols but lacks dedicated SAM I²C interface. | Best suited for standalone NFC readers where host processing is minimal or absent. | Select PN5180A0HN/C1 when firmware execution must occur on-device and SAM integration is not required. |
| CLRC66302HN,157 | Same core architecture but 3.0–5.5 V supply range and no LPCD_OPTIONS register; HVQFN32 only. | Targeted at cost-sensitive, non-battery-powered access panels with standard antenna layouts. | Select CLRC66302HN,157 when operating voltage ≥3.0 V and advanced low-power card detection is unnecessary. |
Compared with PN5180A0HN/C1, CLRC66303EVY offers superior SAM integration and lower power-down current (8 nA vs. 100 nA), making it preferred for certified payment and battery-operated systems; versus CLRC66302HN,157, CLRC66303EVY adds LPCD configurability and wider voltage range - critical for portable and energy-harvesting designs.
Availability
CLRC66303EVY is available at Aetrix Electronics and suitable for access control systems, transit fare validators, industrial asset tracking, and secure IoT gateways requiring stable component supply and long-term lifecycle support.
Supply support for CLRC66303EVY 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 certified contactless reader systems requiring EMV compliance, hardware crypto acceleration, and flexible low-power operation.
FAQ
What is the primary function of the CLRC66303EVY in an NFC reader system?
The CLRC66303EVY serves as the analog and digital NFC frontend, handling RF signal generation (13.56 MHz carrier), modulation/demodulation, protocol framing (ISO/IEC 14443-A/B, FeliCa, ISO/IEC 15693), and hardware-accelerated crypto for MIFARE Classic. It interfaces with a host microcontroller via SPI/I²C/UART and connects to a Secure Access Module (SAM) via a dedicated I²C bus. CLRC66303EVY does not execute application firmware - it relies on the host for higher-layer protocol handling.
Does CLRC66303EVY support EMV contactless payment certification?
Yes, CLRC66303EVY complies with EMV contactless protocol specifications at the RF physical layer, including field strength, modulation depth, and timing requirements. Its hardware MIFARE Classic crypto engine and dedicated SAM interface support secure key management needed for EMVCo Level 1 certification. However, full EMV Level 2/3 certification depends on the complete system design, including antenna layout, host firmware, and SAM implementation - CLRC66303EVY provides the foundational RF and crypto capabilities required.
What package type is used by CLRC66303EVY, and why is it significant?
CLRC66303EVY uses the VFBGA36 package (3.5 mm × 3.5 mm × 0.8 mm, 0.5 mm pitch, MSL3). This ultra-compact ball grid array enables high-density PCB layouts essential for handheld readers, wearables, and space-constrained industrial gateways. Unlike HVQFN32 variants, VFBGA36 provides superior thermal dissipation and signal integrity for RF performance - confirmed by NXP's recommendation of CLRC66303EVY for new designs requiring optimized antenna integration and miniaturization.
How does the LPCD_OPTIONS register in CLRC66303EVY improve low-power operation?
The LPCD_OPTIONS register in CLRC66303EVY enables fine-grained configuration of low-power card detection parameters - including sensitivity thresholds, sampling intervals, and wake-up timing - allowing optimization for small antennas or battery-limited devices. This capability is absent in CLRC66301/02 variants. CLRC66303EVY leverages this register to achieve reliable card presence detection at <10 µA average current, extending battery life in portable readers without compromising responsiveness.
Can CLRC66303EVY directly drive an NFC antenna without external components?
No, CLRC66303EVY requires external matching circuitry - including capacitors and inductors - between its TX1/TX2 outputs and the antenna to tune the 13.56 MHz resonant circuit and maximize power transfer efficiency. The IC integrates the transmitter driver and receiver front-end but does not include integrated matching networks. Reference designs specify discrete LC networks calibrated for specific antenna geometries; omitting these components results in severely reduced read range and potential RF compliance failures.
CLRC66303EVY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE PLUS™
- Package/Case:
- 36-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Reader/Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443, ISO 15693, 18000-3, ISO 18092, Mifare, NFC
- Interface:
- I2C, SPI, UART
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -25°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 36-VFBGA (3.5x3.5)
CLRC66303EVY FAQ
1.How can I place an order for CLRC66303EVY through Aetrix?
Please submit a Request for Quotation (RFQ) for CLRC66303EVY 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 CLRC66303EVY reliable?
The price and inventory of CLRC66303EVY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLRC66303EVY is usually 5 days.
3.What payment methods are accepted for CLRC66303EVY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLRC66303EVY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLRC66303EVY?
CLRC66303EVY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLRC66303EVY 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 CLRC66303EVY?
For technical support, including CLRC66303EVY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLRC66303EVY requirements.
6.How does Aetrix verify that CLRC66303EVY is sourced from the original manufacturer or authorized distributors?
All CLRC66303EVY 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 CLRC66303EVY meets industry standards.
7.What is the process for return or replacement of CLRC66303EVY?
All CLRC66303EVY units undergo pre-shipment inspection (PSI). If there is an issue with CLRC66303EVY, 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 CLRC66303EVY part is unused and in its original packaging.
Return procedure for CLRC66303EVY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CLRC66303EVY Tags
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