NXP Semiconductors PR5331C3HN/C350,51
- Part No.:
- PR5331C3HN/C350,51
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PR5331C3HN/C350,51.pdf
- Description:
- IC RFID READER 13.56MHZ 40HVQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PR5331C3HN/C350,51 from NXP Semiconductors is a USB/HSU-interfaced NFC transceiver IC implementing integrated 80C51 microcontroller, ISO/IEC 14443A/B (up to 848 kbps), FeliCa (212/424 kbps), MIFARE, and picoPass protocols at 13.56 MHz for contactless reader/writer systems in secure access, payment terminals, and identity verification.
For engineers reviewing the PR5331C3HN/C350,51 datasheet, PR5331C3HN/C350,51 pinout, PR5331C3HN/C350,51 application, or PR5331C3HN/C350,51 equivalent, key selection criteria include CCID-compliant USB 2.0 full-speed interface, dual TX/RX analog front-end with integrated RF level and data mode detectors, I²C master support for EEPROM configuration or TDA8029 smart card controller, and hard/soft power-down modes enabling <10 µA standby current.
Technical Context
The PR5331C3HN/C350,51 integrates an 80C51 CPU with 44 kB ROM and 1.2 kB RAM, executing protocol stacks for PCD-mode ISO/IEC 14443A/B, FeliCa, and MIFARE encryption directly on-chip. Its analog front-end features two independent 13.56 MHz transmitter outputs (TX1/TX2) with dedicated TVDD/TVSS supplies and a single high-sensitivity RX input referenced to AVDD.
RF communication uses a buffered output driver architecture minimizing external components, supported by an integrated 27.12 MHz crystal oscillator (ESR ≤100 Ω, CL = 10 pF) and internal fractional-N PLL. Host interface selection is controlled via I0/I1 pins, enabling USB (CCID), HSU (up to 1.2 Mbps), or I²C master operation without firmware reconfiguration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency | 13.56 MHz carrier - enables global compliance with ISO/IEC 14443, FeliCa, and EMV Contactless standards. |
| Data Rates | Up to 848 kbps (ISO/IEC 14443A/B), 424 kbps (FeliCa), 106 kbps (MIFARE/picoPass) - supports high-throughput card emulation and reader modes. |
| Host Interfaces | USB 2.0 full-speed (CCID) or HSU (9.6 kbps–1.2 Mbps) - provides plug-and-play integration with Windows/Linux/Mac OS via standard PC/SC drivers. |
| Supply Voltage Range | 2.5 V–3.6 V (non-USB) or 4.02 V–5.25 V (USB bus-powered) - accommodates both embedded battery-powered and desktop host designs. |
| Power-Down Current | 1.3 µA (hard) / 9 µA (soft) at 3 V - enables multi-year battery life in portable NFC readers and IoT edge devices. |
| Operating Temperature | −30 °C to +85 °C - qualified for industrial and outdoor access control hardware deployment. |
| Package | HVQFN40 (6 × 6 × 0.85 mm, SOT618-1) - thermally enhanced quad flat no-lead package supporting high-density PCB layouts. |
Pinout & Package
HVQFN40 (SOT618-1) package with 40-pin thermal-enhanced layout; exposed die pad for improved thermal dissipation in continuous RF transmission scenarios.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | RF Transmitter Outputs | Drive differential 13.56 MHz carrier into antenna matching network; each referenced to dedicated TVDD/TVSS rails for optimized EMI control. |
| RX | RF Receiver Input | High-impedance analog input for load-modulated signal recovery; referenced to AVDD/AVSS for noise immunity. |
| DP, DM | USB D+/D− or HSU TX/RX | Multiplexed interface pins - auto-configured as USB data lines or UART signals based on I0/I1 strap settings at power-up. |
| P50_SCL, SDA | I²C Master Interface | Open-drain outputs for connecting external EEPROM (A0h) to store UID/PID/RF tuning parameters or TDA8029 contact smart card controller. |
| RSTPD_N | Reset & Power-Down Control | Active-low input that disables internal current sources, inhibits oscillator, and isolates I/O pads - enables deterministic low-power state entry. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated CCID-compliant USB stack | Eliminates need for external USB protocol firmware; enables immediate Windows/Linux PC/SC compatibility without custom driver development. |
| Dual independent TX outputs with TVDD biasing | Supports balanced antenna topologies and adaptive power control - improves read range consistency across varying card types and orientations. |
| On-chip RF level and data mode detectors | Enables real-time signal quality monitoring and automatic protocol switching - reduces host-side software complexity for multi-standard applications. |
| I²C master interface with EEPROM support | Allows field-updatable RF parameters and device identification without reflashing main firmware - critical for OEM customization and certification traceability. |
| EMV Contactless v2.0.1 compliance | Fulfills core transaction layer requirements for payment terminal certification - accelerates regulatory approval for financial-grade deployments. |
Applications
| Secure Access Control Terminal | EMV Contactless Payment Reader |
|---|---|
Use Scenario: Door entry system authenticating employee badges using ISO/IEC 14443A/B and MIFARE cards. IC Role / Device Role / Timing Role: Acts as PCD-mode transceiver handling anti-collision, authentication, and encrypted data exchange with contactless credentials. Use Value: Achieves up to 50 mm read distance with standard antenna tuning, reducing mechanical alignment constraints during installation. | Use Scenario: Point-of-sale terminal processing tap-to-pay transactions compliant with EMV Contactless v2.0.1. IC Role / Device Role / Timing Role: Implements full PCD protocol stack including RF field management, frame encoding/decoding, and cryptographic acceleration for MIFARE DESFire EV1/EV2. Use Value: Delivers sub-100 ms transaction time with built-in RF level detection ensuring reliable card presence sensing under variable environmental conditions. |
| Multi-Protocol Identity Verification Kiosk | Industrial Asset Tagging Reader |
Use Scenario: Public service kiosk reading government eID (Smart eID), FeliCa transit cards, and Innovision Jewel tags. IC Role / Device Role / Timing Role: Switches between ISO/IEC 14443A/B, FeliCa, and proprietary protocols via firmware-controlled mode selection. Use Value: Single-hardware platform supports national ID schemes and regional transport systems - lowers BOM cost and simplifies logistics. | Use Scenario: Factory floor handheld scanner identifying NFC-enabled maintenance tags on machinery. IC Role / Device Role / Timing Role: Operates in battery-powered mode with soft power-down between scans to extend runtime. Use Value: Draws only 9 µA in soft power-down with RF detector active - enables >2-year operation on CR2032 coin cell. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN5180A/C1 | Higher RF output power (up to 200 mA per TX), integrated NFC Forum-certified firmware, supports LLCP and SNEP protocols not implemented in PR5331C3HN/C350,51. | Targeted at peer-to-peer and card emulation use cases requiring NFC Forum compliance; lacks native CCID USB stack. | Select when NFC Forum feature set and higher RF drive capability outweigh CCID plug-and-play advantage. |
| CLRC66303HN | Lower power consumption (2.5 µA hard power-down), supports ISO/IEC 14443A/B, FeliCa, and MIFARE but omits picoPass/Jewel; no integrated USB interface - requires external microcontroller. | Suitable for ultra-low-power embedded designs where host MCU handles USB/CCID and protocol logic. | Select when system already includes capable host processor and maximum energy efficiency is prioritized over integration. |
Compared with PN5180A/C1 and CLRC66303HN, PR5331C3HN/C350,51 uniquely combines CCID-compliant USB 2.0, integrated 80C51 protocol engine, and dual-TX analog front-end in a single HVQFN40 package - optimizing time-to-market for certified payment and access terminals without external firmware development.
Availability
PR5331C3HN/C350,51 is available at Aetrix Electronics and suitable for secure access control terminals, EMV contactless payment readers, and industrial asset tagging systems requiring stable component supply and long-term lifecycle assurance.
Supply support for PR5331C3HN/C350,51 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 deep expertise in NFC, RFID, and secure element technologies.
The PR533 product line delivers highly integrated NFC transceivers targeting certified contactless reader/writer systems - designed to reduce bill-of-materials, accelerate EMV/Smart eID certification, and simplify USB-based host integration.
FAQ
What host operating systems does the PR5331C3HN/C350,51 support natively?
The PR5331C3HN/C350,51 supports Microsoft Windows 2000 through Windows 7 (32/64-bit), Windows Server editions, and GNU/Linux via PC/SC-Lite with libusb 1.0.x+. Mac OS X Leopard/Snow Leopard, Solaris, and FreeBSD are also supported through standardized CCID drivers - eliminating need for proprietary software stacks. All OS compatibility is validated for PR5331C3HN/C350,51's USB 2.0 full-speed interface.
Does the PR5331C3HN/C350,51 require external memory to operate?
No, the PR5331C3HN/C350,51 contains 44 kB of on-chip ROM for firmware and 1.2 kB of RAM for runtime operations. External EEPROM is optional and used only for storing configurable parameters like PID, UID, and RF tuning values - the PR5331C3HN/C350,51 boots and functions fully without it. The I²C master interface enables this optional expansion.
How does the PR5331C3HN/C350,51 achieve EMV Contactless v2.0.1 compliance?
The PR5331C3HN/C350,51 implements the required RF physical layer, initialization, anti-collision, and data link layer commands specified in EMV Contactless Communication Protocol v2.0.1. Its integrated 80C51 executes certified protocol stacks for PCD mode, and its RF front-end meets field strength, modulation depth, and timing jitter requirements - enabling end-product certification when combined with appropriate antenna design and host application logic.
Can the PR5331C3HN/C350,51 interface with contact smart card readers?
Yes, the PR5331C3HN/C350,51 includes an I²C master interface specifically designed to control the TDA8029 contact smart card reader IC. This allows hybrid contact/contactless terminals to share a single host processor and power domain - the PR5331C3HN/C350,51 manages both interfaces independently while maintaining separate voltage domains (PVDD, SVDD) for isolation.
What is the maximum practical read distance achievable with the PR5331C3HN/C350,51?
The PR5331C3HN/C350,51 achieves up to 50 mm read/write distance with ISO/IEC 14443A/MIFARE, ISO/IEC 14443B, or FeliCa cards - contingent on antenna size, geometry, and tuning. This value is measured using a complementary driver configuration with 40 Ω antenna impedance matching at 13.56 MHz; actual performance varies with PCB layout, enclosure materials, and card orientation relative to the antenna plane.
PR5331C3HN/C350,51 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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/C350,51 FAQ
1.How can I place an order for PR5331C3HN/C350,51 through Aetrix?
Please submit a Request for Quotation (RFQ) for PR5331C3HN/C350,51 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/C350,51 reliable?
The price and inventory of PR5331C3HN/C350,51 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PR5331C3HN/C350,51 is usually 5 days.
3.What payment methods are accepted for PR5331C3HN/C350,51?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PR5331C3HN/C350,51 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PR5331C3HN/C350,51?
PR5331C3HN/C350,51 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PR5331C3HN/C350,51 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/C350,51?
For technical support, including PR5331C3HN/C350,51 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PR5331C3HN/C350,51 requirements.
6.How does Aetrix verify that PR5331C3HN/C350,51 is sourced from the original manufacturer or authorized distributors?
All PR5331C3HN/C350,51 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/C350,51 meets industry standards.
7.What is the process for return or replacement of PR5331C3HN/C350,51?
All PR5331C3HN/C350,51 units undergo pre-shipment inspection (PSI). If there is an issue with PR5331C3HN/C350,51, 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/C350,51 part is unused and in its original packaging.
Return procedure for PR5331C3HN/C350,51:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PR5331C3HN/C350,51 Tags

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