NXP Semiconductors PN5331B3HN/C270,55
- Part No.:
- PN5331B3HN/C270,55
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN5331B3HN/C270,55.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 40HVQFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PN5331B3HN/C270,55 from NXP Semiconductors is a Near Field Communication (NFC) controller IC built on an 80C51 microcontroller core, supporting ISO/IEC 14443A/B, FeliCa, and NFCIP-1 (ECMA-340) protocols with bidirectional data rates up to 424 kbit/s. It integrates RF demodulation/decoding, framing, CRC/parity error detection, and on-chip antenna drivers for Reader/Writer and Card Emulation modes. It operates in USB 2.0 full-speed or high-speed UART host interface configurations and supports secure IC interfacing via NFC-WI/S2C.
For engineers reviewing the PN5331B3HN/C270,55 datasheet, PN5331B3HN/C270,55 pinout, PN5331B3HN/C270,55 application, or PN5331B3HN/C270,55 equivalent, key selection considerations include its 40-pin HVQFN package, 27.12 MHz crystal oscillator, 45056-byte ROM + 1224-byte RAM memory architecture, integrated RF level/data mode detectors, and support for MIFARE 1 KB/4 KB emulation with hardware-accelerated encryption in Reader/Writer mode.
Technical Context
The PN5331B3HN/C270,55 implements a complete contactless communication stack at 13.56 MHz, handling ISO/IEC 14443A framing and error detection (Parity & CRC), FeliCa layer 2–3 framing, and NFCIP-1 passive/active mode compliance per ECMA-340 and ISO/IEC 18092. Its embedded 80C51 core executes firmware for anticollision (ISO/IEC 14443B), card emulation logic, and host interface protocol translation.
It features buffered TX1/TX2 outputs driving external antennas without active components, integrated RF level and data mode detectors for automatic signal adaptation, and a dedicated power switch (SVDD) for secure companion ICs. Host connectivity includes USB 2.0 full-speed (bus/non-bus powered), HSU, and restricted I²C master for EEPROM control - all managed via programmable timers and interrupt vectors mapped to 14 distinct sources.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier with internal 27.12 MHz crystal oscillator and on-chip PLL for USB clock generation |
| Data Rate Support | Up to 424 kbit/s bidirectional for ISO/IEC 14443A/MIFARE, FeliCa, and NFCIP-1 modes |
| Memory Resources | 45056 bytes ROM for firmware; 1224 bytes RAM (IDATA + XRAM) for runtime execution and buffer management |
| Supply Voltage Range | 2.5 V to 3.6 V (non-USB mode); 4.02 V to 5.25 V (USB bus-powered mode) |
| Power Consumption | 10 µA hard-power-down current; 30 µA soft-power-down current; 250 µA USB suspend current |
| Operating Temperature | −30 °C to +85 °C ambient, validated for industrial and consumer embedded deployment |
| RF Operating Distance | Up to 50 mm in Reader/Writer mode; ~100 mm in card emulation mode (antenna-dependent) |
Pinout & Package
HVQFN40 (SOT618-1) package: 6 × 6 × 0.85 mm, leadless, MSL level 2, thermal pad exposed on underside for heatsinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1 / TX2 | RF Transmitter Outputs | Drive modulated 13.56 MHz carrier to external antenna; require no external active components |
| RX | RF Receiver Input | Accepts load-modulated signal from antenna; internally conditioned for demodulation and decoding |
| LOADMOD | Load Modulation Output | Provides digital modulation signal for FeliCa/MIFARE card emulation; drives external active circuit if needed |
| DP / DM | USB D+/D− Interface | Full-speed USB 2.0 physical layer; also configurable as HSU RX/TX in non-USB mode |
| SCL / SDA | I²C Master Interface | Open-drain lines for controlling external I²C EEPROM; restricted functionality per datasheet |
| P34 / SIGIN / SIGOUT | NFC-WI/S2C Secure Interface | Serial interface for secure IC communication; SVDD-switched power delivery enables overload protection |
| RSTPD_N | Reset & Power-Down Control | Active-low input that disables oscillator, disconnects I/O pads, and initiates internal reset on falling edge |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Front-End | On-die demodulator, decoder, framing generator, and CRC/parity checker eliminate need for external RF signal processing ICs |
| Multi-Protocol Hardware Acceleration | Dedicated MIFARE Classic Unit and CIU (Contactless Interface Unit) enable real-time protocol handling without CPU overhead |
| Secure IC Co-Processing Support | ECMA-373 NFC-WI interface with SVDD power switch and overload detection ensures safe, standards-compliant secure element integration |
| Low-Power Operation Modes | Hard-power-down (10 µA), soft-power-down (30 µA), and USB suspend (250 µA) enable battery-constrained designs |
| Antenna Flexibility | Buffered TX/RX drivers and integrated RF level detector simplify antenna tuning and support variable coil geometries |
Applications
| Smart Access Control System | Mobile Point-of-Sale Terminal |
|---|---|
Use Scenario: Contactless credential reading and secure access granting in enterprise door controllers or hotel lock systems. IC Role / Device Role / Timing Role: PN5331B3HN/C270,55 acts as ISO/IEC 14443A Reader/Writer and MIFARE 4 KB emulator, performing cryptographic authentication and session key exchange. Use Value: Enables interoperability with legacy MIFARE infrastructure while supporting higher-speed 424 kbit/s transactions and integrated secure IC co-processing for key storage. | Use Scenario: Compact handheld POS devices accepting contactless payments via EMVCo-compliant cards and mobile wallets. IC Role / Device Role / Timing Role: PN5331B3HN/C270,55 serves as NFCIP-1 initiator in active communication mode, managing peer-to-peer handshaking and data exchange with payment terminals. Use Value: Delivers certified NFCIP-1 compliance at 424 kbit/s with hardware-based framing and error detection, reducing host CPU load and ensuring deterministic transaction timing. |
| Industrial Asset Tagging Reader | Consumer Electronics NFC Hub |
Use Scenario: Rugged handheld scanners identifying maintenance tags on machinery using FeliCa or ISO/IEC 14443B transponders. IC Role / Device Role / Timing Role: PN5331B3HN/C270,55 operates in FeliCa Reader/Writer mode with integrated data mode detector, adapting to varying field strengths during scanning. Use Value: Eliminates need for external signal conditioning; typical 50 mm read range accommodates industrial tag placement without antenna redesign. | Use Scenario: Smart home hubs enabling tap-to-pair setup with Bluetooth/Wi-Fi devices using NFC handover. IC Role / Device Role / Timing Role: PN5331B3HN/C270,55 functions as NFCIP-1 target in passive mode, receiving configuration payloads from smartphones via standardized NDEF records. Use Value: Leverages built-in NFCIP-1 framing and error correction to ensure reliable handover even in electrically noisy environments, with low-latency wake-up from soft-power-down. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN5321A3HN/C270,55 | Lower memory (32 KB ROM), no FeliCa support, lacks NFC-WI interface and SVDD power switch | Restricted to ISO/IEC 14443A/B-only use cases; unsuitable for secure element integration or FeliCa markets | Select only when cost sensitivity outweighs multi-protocol and security requirements |
| PN7150B0HN/C1E | ARM Cortex-M0+ core, 64 KB flash, integrated firmware, I²C-only host interface, no USB/HSU | Designed for simplified integration in resource-constrained hosts; lacks 80C51 firmware flexibility and dual-host interface capability | Prefer for rapid time-to-market where pre-certified stack and minimal host driver effort are critical |
Compared with PN5321A3HN/C270,55 and PN7150B0HN/C1E, the PN5331B3HN/C270,55 uniquely combines full multi-protocol support (including FeliCa), secure IC co-processing via NFC-WI, and dual-host interface flexibility (USB + HSU), making it optimal for complex, field-upgradable NFC systems requiring both performance and extensibility.
Availability
PN5331B3HN/C270,55 is available at Aetrix Electronics and suitable for smart access control systems, mobile point-of-sale terminals, and industrial asset tagging readers requiring stable component supply across extended product lifecycles.
Supply support for PN5331B3HN/C270,55 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 PN533 product line delivers highly integrated NFC controllers targeting secure, multi-standard contactless interfaces in embedded systems - designed for interoperability with legacy infrastructure (MIFARE/FeliCa) while enabling next-generation NFCIP-1 peer-to-peer and card emulation use cases.
FAQ
What host interface options does the PN5331B3HN/C270,55 support?
The PN5331B3HN/C270,55 supports USB 2.0 full-speed (bus-powered or self-powered), high-speed UART (HSU), and a restricted I²C master interface for external EEPROM control. USB and HSU are mutually exclusive via I0/I1 pin configuration; I²C operates independently with open-drain SCL/SDA pins. All interfaces are managed by the embedded 80C51 core and supported by dedicated interrupt vectors and firmware drivers in the NXP-provided stack.
Does the PN5331B3HN/C270,55 support MIFARE Classic 4 KB emulation with hardware encryption?
Yes, the PN5331B3HN/C270,55 supports MIFARE Classic 1 KB and 4 KB emulation in Reader/Writer mode with hardware-accelerated encryption. Its dedicated MIFARE Classic Unit handles cryptographic operations including Crypto1 cipher execution and authentication sequences without CPU intervention, enabling compliant emulation at 212 kbit/s and 424 kbit/s transfer speeds as specified in the official PN533 datasheet Rev. 3.4.
What is the maximum operating distance achievable with the PN5331B3HN/C270,55 in card emulation mode?
The PN5331B3HN/C270,55 achieves a typical operating distance of approximately 100 mm in ISO/IEC 14443A/MIFARE or FeliCa card emulation mode. This range is dependent on antenna size, tuning, and external field strength - not an absolute limit but a validated performance benchmark under standard test conditions documented in the PN533 datasheet Section 2 (Features and benefits).
How does the PN5331B3HN/C270,55 handle power management for battery-operated devices?
The PN5331B3HN/C270,55 provides three low-power states: Hard-Power-down (10 µA), Soft-Power-down (30 µA), and USB suspend (250 µA). It supports automatic wake-up on HSU activity while in Power-down mode, and includes programmable timers and dedicated host interrupts (e.g., P32_INT0, P33_INT1) to minimize polling. These features enable robust energy efficiency in portable and battery-powered NFC applications.
Can the PN5331B3HN/C270,55 interface directly with a secure element such as an eSE or UICC?
Yes, the PN5331B3HN/C270,55 interfaces directly with secure elements via the ECMA-373 NFC-WI (NFC Wireless Interface) or S2C protocol using SIGIN/SIGOUT pins and the switched SVDD power rail. The integrated SVDD switch includes overload detection, and firmware controls power delivery - enabling standards-compliant, electrically safe communication with secure ICs used in payment, ID, and transit applications.
PN5331B3HN/C270,55 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- RFID Reader/Transponder
- Frequency:
- 13.56MHz
- Standards:
- FeliCa, ISO 14443, MIFARE, NFC
- Interface:
- -
- Voltage - Supply:
- 2.5V ~ 3.6V
- Operating Temperature:
- -30°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (6x6)
PN5331B3HN/C270,55 FAQ
1.How can I place an order for PN5331B3HN/C270,55 through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5331B3HN/C270,55 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 PN5331B3HN/C270,55 reliable?
The price and inventory of PN5331B3HN/C270,55 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5331B3HN/C270,55 is usually 5 days.
3.What payment methods are accepted for PN5331B3HN/C270,55?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5331B3HN/C270,55 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5331B3HN/C270,55?
PN5331B3HN/C270,55 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5331B3HN/C270,55 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 PN5331B3HN/C270,55?
For technical support, including PN5331B3HN/C270,55 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5331B3HN/C270,55 requirements.
6.How does Aetrix verify that PN5331B3HN/C270,55 is sourced from the original manufacturer or authorized distributors?
All PN5331B3HN/C270,55 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 PN5331B3HN/C270,55 meets industry standards.
7.What is the process for return or replacement of PN5331B3HN/C270,55?
All PN5331B3HN/C270,55 units undergo pre-shipment inspection (PSI). If there is an issue with PN5331B3HN/C270,55, 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 PN5331B3HN/C270,55 part is unused and in its original packaging.
Return procedure for PN5331B3HN/C270,55:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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