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NXP Semiconductors PR5331C3HN/C370Y
- Part No.:
- PR5331C3HN/C370Y
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PR5331C3HN/C370Y.pdf
- Description:
- IC RFID READER 13.56MHZ 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,159
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Product details
Overview
PR5331C3HN/C370Y from NXP Semiconductors is a USB/NFC integrated contactless reader/writer transceiver IC operating at 13.56 MHz, featuring an embedded 80C51 microcontroller with 44 kB ROM and 1.2 kB RAM, CCID-compliant USB 2.0 full-speed interface, and support for ISO/IEC 14443A/B (up to 848 kbps), FeliCa (212/424 kbps), MIFARE, and picoPass protocols. It enables secure access control terminals and payment kiosks requiring multi-protocol RF interoperability.
For engineers reviewing the PR5331C3HN/C370Y datasheet, PR5331C3HN/C370Y pinout, PR5331C3HN/C370Y application, or PR5331C3HN/C370Y equivalent, key selection criteria include its HVQFN40 package, dual TX1/TX2 transmitter outputs, integrated RF level/data mode detectors, I²C master interface for EEPROM configuration, and compliance with EMV Contactless Communication Protocol V2.0.1.
Technical Context
The PR5331C3HN/C370Y integrates a fractional-N PLL with 27.12 MHz crystal oscillator input (OSCIN/OSCOUT), analog front-end with buffered TX1/TX2 drivers and high-sensitivity RX input, and digital baseband processing via its on-chip 80C51 core. Its RF protocol stack is implemented in ROM firmware, eliminating external host dependency for low-level modulation/demodulation.
It supports three host interface modes-USB CCID (default), HSU UART (9.6 kbps–1.2 Mbps), and I²C master-enabling flexible integration into PC-based, embedded, or hybrid smart-card/NFC systems. Power management includes hard/soft power-down modes with sub-10 µA current draw and regulated 3.3 V supply generation from USB bus power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency | 13.56 MHz carrier - enables global NFC/RFID interoperability per ISO/IEC 14443 and FeliCa standards. |
| Max Data Rate | 848 kbps (ISO/IEC 14443A/B) - supports high-throughput card emulation and reader/writer applications. |
| Host Interface | USB 2.0 full-speed + CCID protocol - plug-and-play compatibility with Windows, Linux, macOS, and PC/SC middleware. |
| Supply Voltage | 2.5–3.6 V (non-USB) or 4.02–5.25 V (USB bus-powered) - accommodates both standalone and bus-powered designs. |
| Operating Distance | Up to 50 mm (typ.) - achievable with matched 40 Ω antenna between TX1/TX2, enabling robust proximity detection. |
| Power-Down Current | 1.3 µA (hard) / 9 µA (soft) - extends battery life in portable readers and IoT edge devices. |
| Package | HVQFN40 (6 × 6 × 0.85 mm, SOT618-1) - compact footprint with exposed thermal pad for efficient heat dissipation. |
Pinout & Package
HVQFN40 (SOT618-1) package with 40-pin layout, 6 mm × 6 mm body, 0.85 mm height, and exposed thermal pad for thermal management. Pin pitch: 0.5 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | RF Transmitter Outputs | Dual differential 13.56 MHz carrier outputs - enable balanced antenna drive and improved EMI performance. |
| RX | RF Receiver Input | High-sensitivity analog input for load-modulated signals - supports reception from ISO/IEC 14443A/B, FeliCa, and MIFARE cards. |
| DP, DM | USB D+/D− | Full-speed USB 2.0 differential data lines - provide direct CCID-compliant host connectivity without external PHY. |
| P50_SCL, SDA | I²C Master Interface | Open-drain clock/data lines - allow configuration storage in external EEPROM (A0h) or control of TDA8029 contact smart card reader. |
| RSTPD_N | Reset & Power-Down Control | Active-low input - initiates internal reset and disables all current sources, oscillator, and I/O pads for ultra-low-power state. |
| P70_IRQ | Interrupt Request Output | Push-pull interrupt signal - alerts host processor of card presence, transaction completion, or error events. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 80C51 MCU + 44 kB ROM | Executes full RF protocol stacks (ISO14443A/B, FeliCa, MIFARE) without host CPU involvement - reduces system latency and host resource load. |
| CCID-compliant USB interface | Eliminates need for custom driver development - ensures out-of-box compatibility with Windows Smart Card Resource Manager and PC/SC Lite on Linux/macOS. |
| Dedicated RF level & data mode detectors | Enable real-time signal quality monitoring and automatic protocol adaptation - improves reliability in noisy electromagnetic environments. |
| Configurable I²C master interface | Supports external EEPROM (A0h) for persistent storage of UID, PID, and RF tuning parameters - enables field-upgradable device identity and calibration. |
| 27.12 MHz crystal oscillator input | Accepts low-ESR (≤100 Ω), 10 pF-load crystal - simplifies timing design and meets phase noise mask (−140 dBc/Hz @ 50 kHz offset) for regulatory compliance. |
Applications
| Access Control Terminal | EMV Contactless Payment Kiosk |
|---|---|
Use Scenario: Secure door entry system reading employee badges and visitor credentials in office buildings or data centers. IC Role / Device Role / Timing Role: Acts as PCD (Proximity Coupling Device) reader handling ISO/IEC 14443A/B and MIFARE Classic/DESFire authentication sequences. Use Value: Achieves up to 50 mm read range with standard PCB antenna, reducing mechanical alignment constraints during installation. | Use Scenario: Self-service retail kiosk accepting contactless credit/debit cards and mobile wallets (Apple Pay, Google Pay). IC Role / Device Role / Timing Role: Implements EMV Contactless Communication Protocol V2.0.1 as certified PCD - handles kernel-level transaction flow, anti-collision, and secure channel establishment. Use Value: USB CCID compliance enables seamless integration with existing POS software stacks without custom middleware. |
| Multi-Protocol Transit Fare Validator | Industrial Asset Tag Reader |
Use Scenario: Handheld or fixed-mount validator reading FeliCa (Japan), MIFARE (Europe), and ISO14443B (government ID) cards across regional transit networks. IC Role / Device Role / Timing Role: Switches between FeliCa (212/424 kbps) and ISO14443A/B (106–848 kbps) modes via firmware command - supports heterogeneous card ecosystems. Use Value: Single hardware platform replaces multiple legacy readers, lowering BOM cost and certification overhead. | Use Scenario: Ruggedized handheld tool scanning NFC-enabled maintenance tags on factory equipment or HVAC units. IC Role / Device Role / Timing Role: Functions as initiator in passive mode (106–424 kbps) using PC/SC transparent mode - reads static NDEF records and sensor metadata from passive tags. Use Value: Low-power soft power-down mode (9 µA) extends battery life beyond 12 months on coin-cell supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC reader IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN7150B01HN/C1 | Lower integration: no embedded microcontroller; requires external host processor for protocol handling. | Limited to host-driven NFC Forum-certified use cases; lacks EMV V2.0.1 stack and FeliCa support. | Choose when system already includes capable host MCU and prioritizes lower BOM cost over firmware autonomy. |
| CLRC66303HN | Supports same RF protocols but uses SPI/I²C only - no native USB CCID interface or integrated oscillator. | Requires external USB bridge IC and 27.12 MHz clock source; increases PCB area and component count. | Choose when design mandates SPI interface or needs higher RF output power (up to 1 W) for extended range. |
Compared with PN7150B01HN/C1 and CLRC66303HN, PR5331C3HN/C370Y delivers complete turnkey NFC reader functionality with USB plug-and-play, embedded protocol stack, and minimal external components - ideal for rapid deployment of certified EMV and multi-standard terminals.
Availability
PR5331C3HN/C370Y is available at Aetrix Electronics and suitable for access control terminals, EMV contactless payment kiosks, and industrial asset tag readers requiring stable component supply and long-term lifecycle assurance.
Supply support for PR5331C3HN/C370Y 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 PR5331C3HN/C370Y belongs to NXP's NFC reader IC product line, designed specifically to accelerate development of certified, multi-protocol contactless terminals with minimal host dependency and regulatory compliance out-of-the-box.
FAQ
What host interfaces does the PR5331C3HN/C370Y support?
The PR5331C3HN/C370Y supports USB 2.0 full-speed (CCID protocol), High-Speed UART (9.6 kbps–1.2 Mbps), and I²C master interface. USB is the default and most widely deployed option, enabling direct connection to PCs and embedded hosts with standard PC/SC drivers. The I²C interface allows configuration storage in external EEPROM or control of a TDA8029 contact smart card reader. PR5331C3HN/C370Y firmware automatically detects interface mode via I0/I1 pins at startup.
Does PR5331C3HN/C370Y comply with EMV Contactless specifications?
Yes, PR5331C3HN/C370Y in PCD mode is compliant with EMV Contactless Communication Protocol Specification V2.0.1. Its embedded firmware implements the required kernel-level transaction flow, including anti-collision, activation, and secure channel establishment. Certification testing is performed at the system level, but PR5331C3HN/C370Y provides the foundational RF and protocol stack necessary for EMVCo approval. PR5331C3HN/C370Y also supports Smart eID standards through application-layer implementation.
What is the maximum operating distance achievable with PR5331C3HN/C370Y?
The typical operating distance for PR5331C3HN/C370Y in Read/Write mode is up to 50 mm, depending on antenna size, geometry, and tuning. This assumes a properly matched 40 Ω antenna connected between TX1 and TX2, optimal PCB layout, and nominal supply conditions (3.3 V). Performance degrades below 3 V supply; distances above 50 mm require external power amplification or specialized antenna design not supported by PR5331C3HN/C370Y's integrated drivers.
Can PR5331C3HN/C370Y operate without a crystal oscillator?
No, PR5331C3HN/C370Y requires an external 27.12 MHz crystal oscillator connected to OSCIN/OSCOUT pins. The oscillator must meet specified requirements: frequency tolerance ±13 kHz (27.107–27.133 MHz), ESR ≤100 Ω, load capacitance 10 pF, and phase noise ≤−140 dBc/Hz at 50 kHz offset. An externally generated 27.12 MHz clock may be used instead of a crystal, but the oscillator function remains mandatory for RF timing accuracy and regulatory compliance.
How does PR5331C3HN/C370Y manage power in battery-operated devices?
PR5331C3HN/C370Y offers two ultra-low-power states: hard power-down (1.3 µA) and soft power-down (9 µA), both disabling RF circuitry while retaining register context. In soft mode, the RF level detector remains active for wake-on-card detection. Supply voltage range is 2.5–3.6 V in non-USB mode, and the internal regulator generates stable 3.3 V from USB 5 V bus power. PR5331C3HN/C370Y also supports dynamic current scaling based on antenna presence detection thresholds to optimize efficiency.
PR5331C3HN/C370Y Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- RFID Reader
- Frequency:
- 13.56MHz
- Standards:
- FeliCa, ISO 14443, MIFARE, NFC
- Interface:
- I2C, UART
- Voltage - Supply:
- 2.5V ~ 3.6V
- Operating Temperature:
- -30°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (6x6)
PR5331C3HN/C370Y FAQ
1.How can I place an order for PR5331C3HN/C370Y through Aetrix?
Please submit a Request for Quotation (RFQ) for PR5331C3HN/C370Y 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 PR5331C3HN/C370Y reliable?
The price and inventory of PR5331C3HN/C370Y are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR5331C3HN/C370Y is usually 5 days.
3.What payment methods are accepted for PR5331C3HN/C370Y?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR5331C3HN/C370Y transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR5331C3HN/C370Y?
PR5331C3HN/C370Y orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR5331C3HN/C370Y 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 PR5331C3HN/C370Y?
For technical support, including PR5331C3HN/C370Y datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR5331C3HN/C370Y requirements.
6.How does Aetrix verify that PR5331C3HN/C370Y is sourced from the original manufacturer or authorized distributors?
All PR5331C3HN/C370Y 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 PR5331C3HN/C370Y meets industry standards.
7.What is the process for return or replacement of PR5331C3HN/C370Y?
All PR5331C3HN/C370Y units undergo pre-shipment inspection (PSI). If there is an issue with PR5331C3HN/C370Y, 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 PR5331C3HN/C370Y part is unused and in its original packaging.
Return procedure for PR5331C3HN/C370Y:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PR5331C3HN/C370Y Tags
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