NXP Semiconductors CLEV6630AM
- Part No.:
- CLEV6630AM
- Manufacturer:
- NXP Semiconductors
- Category:
- RF, RFID, Wireless Evaluation Boards
- Package:
- Datasheet:
-
CLEV6630AM.pdf
- Description:
- CLRC663 CUSTOMER DEV BOARD
- Quantity:
- Payment:

- Shipping:

Inventory:2,490
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Product details
Overview
CLRV6630AM 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 18000-3 mode 3, and P2P passive initiator mode per ISO/IEC 18092. It delivers up to 848 kbit/s transfer speed for MIFARE Classic, integrates 512-byte FIFO, and operates from 2.5 V to 5.5 V - deployed in industrial access control readers and secure transit ticketing terminals.
For engineers reviewing the CLEV6630AM datasheet, CLEV6630AM pinout, CLEV6630AM application, or CLEV6630AM equivalent, this page provides verified technical context, host interface timing constraints (SPI up to 10 Mbit/s, I²C Fast-mode Plus up to 1000 kBd), RF performance metrics (12 cm typical read range with tuned antenna), low-power card detection (LPCD) register configuration, and validated alternative part selection guidance.
Technical Context
The CLEV6630AM implements dual transmitter outputs (TX1/TX2) and differential receiver inputs (RXP/RXN) for robust 13.56 MHz contactless communication, with integrated PLL deriving system clock from 27.12 MHz crystal. Its analog front-end handles ASK modulation (100% depth) and subcarrier load modulation, while digital logic manages ISO/IEC 14443-A framing, CRC, and parity error detection without host intervention.
It supports three host interfaces - SPI (10 Mbit/s), UART (RS-232–compatible, up to 1228.8 kBd), and dual I²C buses (one for SAM, one for host) - with programmable IFSEL pins selecting active interface. The dedicated SAM I²C interface enables hardware-accelerated cryptographic operations using external secure element, isolating key storage from main host.
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. |
| RF Transfer Speed | Up to 848 kbit/s (ISO/IEC 14443-A/MIFARE Classic) - reduces transaction time in high-throughput access gates and payment terminals. |
| FIFO Buffer Size | 512 bytes - minimizes host CPU polling overhead during burst data transfers with MIFARE DESFire or FeliCa cards. |
| Host Interface Speeds | SPI: 10 Mbit/s; I²C Fast-mode Plus: 1000 kBd; UART: 1228.8 kBd - ensures low-latency command-response cycles in real-time reader firmware. |
| Operating Temperature | −40 °C to +105 °C - qualified for deployment in uncontrolled industrial environments and outdoor transit kiosks. |
| Power-Down Current | 8 nA typical - enables battery-powered handheld readers to maintain >1-year shelf life in standby with LPCD enabled. |
| Read Range | Up to 12 cm (ISO/IEC 14443-A/MIFARE Classic, antenna-dependent) - supports ergonomic user interaction without precise card alignment. |
Pinout & Package
CLV6630AM is packaged in HVQFN32 (SOT617-1), 5 × 5 × 0.85 mm, wettable flanks, MSL2 - optimized for automated optical inspection and reflow soldering yield in high-volume manufacturing.
| 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 demodulated signal from antenna; enable high common-mode noise rejection in electrically noisy industrial settings. |
| IFSEL0 / IFSEL1 | Host Interface Selection | Configure active host interface (SPI/I²C/UART) at power-up; eliminate need for external multiplexers or firmware reconfiguration. |
| SCL / SDA | Main I²C Host Interface | Support Fast-mode Plus (1000 kBd) for rapid register access and firmware updates; separate from SAM I²C bus. |
| IRQ | Interrupt Request Output | Asserts on RxIRQ, TxIRQ, LPCDIRQ, or timer underflow - enables event-driven host firmware without continuous polling. |
| PDOWN | Power-Down Control Input | Active-HIGH signal entering hard power-down mode with 8 nA quiescent current - critical for battery longevity in portable readers. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-protocol RF Frontend | Native support for ISO/IEC 14443-A/B, FeliCa, ISO/IEC 15693, and P2P - eliminates need for multiple discrete RF ICs in global deployments. |
| Hardware MIFARE Encryption | On-die acceleration of MIFARE Classic Crypto1 cipher - offloads encryption/decryption from host MCU, reducing firmware complexity and latency. |
| Dedicated SAM I²C Interface | Isolated I²C bus (SCL_SAM/SDA_SAM not shown in HVQFN32 pinout but documented in datasheet) - enables secure key management without exposing secrets to main host bus. |
| Low-Power Card Detection (LPCD) | Configurable via LPCD_OPTIONS register (CLRC66303 variant) - detects card presence at <100 µA average current, enabling always-on battery operation. |
| Integrated PLL Clock Synthesis | Derives all internal clocks from 27.12 MHz crystal - removes need for external oscillator or clock generator, saving BOM cost and PCB area. |
Applications
| Access Control Reader | Transit Fare Terminal |
|---|---|
Use Scenario: Secure door entry system reading MIFARE Classic 1 kB credentials at building entrances. IC Role / Device Role / Timing Role: NFC frontend handling analog RF layer, ASK modulation, and ISO/IEC 14443-A framing - relieves host MCU of low-level protocol timing. Use Value: 12 cm read range allows hands-free credential presentation; 848 kbit/s speed cuts authentication time to <150 ms, preventing queue buildup. |
Use Scenario: Contactless fare validator in subway turnstiles processing FeliCa-based Suica or ICOCA cards. IC Role / Device Role / Timing Role: FeliCa demodulator and framer - performs subcarrier decoding, CRC validation, and 424 kbit/s bidirectional data exchange. Use Value: Hardware-accelerated FeliCa protocol stack ensures sub-200 ms tap-to-validate latency compliant with JR East specifications. |
| Industrial Asset Tagging | Secure Mobile Payment Dongle |
Use Scenario: Ruggedized handheld scanner identifying ISO/IEC 15693 ICODE SLI tags on factory equipment. IC Role / Device Role / Timing Role: Vicinity protocol controller managing 13.56 MHz load modulation, Manchester decoding, and EPC UID read sequences. Use Value: 64-byte buffer and configurable timeout registers enable reliable tag reads in metal-rich environments with RF interference. |
Use Scenario: USB-C dongle enabling Android phones to emulate EMV-compliant contactless cards via P2P mode. IC Role / Device Role / Timing Role: Passive initiator per ISO/IEC 18092 - generates RF field, negotiates LLCP, and routes APDU traffic between phone and terminal. Use Value: Integrated LPCD and 8 nA power-down current extend dongle battery life to >3 months between charges during intermittent use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN5180A | Single-chip NFC controller with integrated MCU and firmware; no external host required for basic operations. | Targeted at ultra-low-cost, self-contained readers; lacks dedicated SAM interface and 512-byte FIFO. | Select PN5180A only when eliminating host MCU dependency is prioritized over cryptographic flexibility and high-speed throughput. |
| ST25R3916B | Supports same protocols (14443A/B/FeliCa/15693) but uses different register map and interrupt model; 128-byte FIFO. | Better suited for compact designs with tight PCB space; lower max SPI speed (5 Mbit/s vs 10 Mbit/s). | Choose ST25R3916B when footprint reduction outweighs need for 848 kbit/s MIFARE speed and SAM-based security architecture. |
Compared with PN5180A and ST25R3916B, CLEV6630AM uniquely balances high-speed MIFARE throughput, hardware crypto acceleration, and dual I²C isolation - making it optimal for industrial readers requiring field-upgradable firmware and certified secure key handling.
Availability
CLV6630AM is available at Aetrix Electronics and suitable for industrial access control, transit fare collection, and secure mobile payment dongles requiring stable component supply across extended product lifecycles.
Supply support for CLEV6630AM 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 core expertise in RFID, NFC, and secure element technologies.
The CLRC663 family - including CLEV6630AM - was engineered for high-reliability contactless reader systems demanding multi-standard interoperability, low-power operation, and hardware-accelerated cryptography in harsh electromagnetic environments.
FAQ
What host interfaces does the CLEV6630AM support, and what are their maximum speeds?
The CLEV6630AM supports SPI (up to 10 Mbit/s), I²C-bus (Fast-mode Plus up to 1000 kBd), and UART (RS-232 compatible, up to 1228.8 kBd). These speeds are specified under recommended operating conditions and enable low-latency communication with host microcontrollers. The CLEV6630AM also includes a separate I²C interface dedicated to secure access module (SAM) connection, ensuring cryptographic operations remain isolated from the main host bus.
Does the CLEV6630AM support MIFARE Classic encryption in hardware?
Yes, the CLEV6630AM includes on-die hardware acceleration for the MIFARE Classic Crypto1 cipher. This enables secure read/write operations with MIFARE Classic 1 kB and 4 kB cards without burdening the host MCU. The CLEV6630AM handles key scheduling, challenge-response authentication, and data encryption/decryption internally - a capability confirmed in Section 2 Features and Benefits of the official datasheet.
What is the maximum operating temperature range for the CLEV6630AM?
The CLEV6630AM is rated for an operating ambient temperature range of −40 °C to +105 °C when mounted on a PCB with sufficient heat dissipation. This specification applies specifically to the CLRC66303 variant (which CLEV6630AM belongs to), as documented in Table 2 of the datasheet, and qualifies it for deployment in industrial enclosures and outdoor transit infrastructure without active cooling.
How does the CLEV6630AM implement low-power card detection (LPCD)?
The CLEV6630AM implements LPCD via the LPCD_OPTIONS register (introduced in CLRC66303), enabling configurable sensitivity and detection thresholds without host polling. In LPCD mode, the device draws <100 µA average current while monitoring for card-induced antenna detuning. Upon detection, it asserts LPCDIRQ and wakes the host via IRQ pin - a feature validated in Section 2 and Figure 27 of the datasheet for battery-powered reader designs.
What package type is used for the CLEV6630AM, and does it include wettable flanks?
The CLEV6630AM uses the HVQFN32 (SOT617-1) package: 5 × 5 × 0.85 mm, 32-terminal no-lead format with wettable flanks. This is explicitly listed in Table 3 (Ordering Information) for part number CLRC66303HNE, and the wettable flanks facilitate automated optical inspection (AOI) of solder joints during high-volume PCB assembly - a key reliability enhancement for industrial-grade readers.
CLEV6630AM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Contents:
- Board(s)
- Utilized IC / Part:
- CLRC663
CLEV6630AM FAQ
1.How can I place an order for CLEV6630AM through Aetrix?
Please submit a Request for Quotation (RFQ) for CLEV6630AM 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 CLEV6630AM reliable?
The price and inventory of CLEV6630AM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CLEV6630AM is usually 5 days.
3.What payment methods are accepted for CLEV6630AM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CLEV6630AM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CLEV6630AM?
CLEV6630AM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CLEV6630AM 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 CLEV6630AM?
For technical support, including CLEV6630AM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CLEV6630AM requirements.
6.How does Aetrix verify that CLEV6630AM is sourced from the original manufacturer or authorized distributors?
All CLEV6630AM 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 CLEV6630AM meets industry standards.
7.What is the process for return or replacement of CLEV6630AM?
All CLEV6630AM units undergo pre-shipment inspection (PSI). If there is an issue with CLEV6630AM, 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 CLEV6630AM part is unused and in its original packaging.
Return procedure for CLEV6630AM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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