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NXP Semiconductors PN5120A0HN/C2,557
- Part No.:
- PN5120A0HN/C2,557
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN5120A0HN/C2,557.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,825
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Product details
Overview
PN5120A0HN/C2 from NXP Semiconductors is a full NFC Forum-compliant 13.56 MHz NFC frontend IC supporting Reader/Writer, Card Operation, and NFCIP-1 modes. It integrates analog modulation/demodulation, CRC coprocessing, and RF level detection, enabling contactless communication with ISO/IEC 14443A/MIFARE, ISO/IEC 14443B, FeliCa, and NFCIP-1 devices. Its HVQFN40 package supports up to 424 kbit/s transfer speeds in all modes and delivers typical operating distances of 50 mm (Reader/Writer) and 100 mm (Card Operation).
For engineers reviewing the PN5120A0HN/C2 datasheet, PN5120A0HN/C2 pinout, PN5120A0HN/C2 application, or PN5120A0HN/C2 equivalent, key selection considerations include its support for MIFARE Classic encryption, integrated S2C interface for secure IC coupling, 2.5–3.6 V supply range, 64-byte FIFO buffer, and compatibility with SPI (10 Mbit/s), I²C (up to 3.4 MBd), UART, and parallel host interfaces.
Technical Context
The PN5120A0HN/C2 implements a fully integrated analog front-end with dual transmitter outputs (TX1/TX2), differential receiver input (RX), and internal oscillator for 27.12 MHz crystal operation. Its digital baseband handles ISO/IEC 14443A framing, FeliCa protocol layering, and NFCIP-1 frame generation-including parity, CRC16, and Manchester/modified Miller encoding-without host intervention.
It features programmable interrupt control, hardware reset/power-down (NRSTPD), RF-level and data-mode detectors, and dedicated power domains (VDDA, VDDD, TVDD, PVDD, SVDD) enabling precise analog-digital isolation. The S2C interface provides direct digital signaling to secure elements, while AUX1/AUX2 pins support factory test and debug functions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier frequency with internal 27.12 MHz crystal oscillator support |
| Data Rates | Up to 424 kbit/s in ISO/IEC 14443A, FeliCa, and NFCIP-1 modes |
| Supply Voltage Range | 2.5 V to 3.6 V for analog/digital domains; separate 1.6–3.6 V for PVDD/SVDD |
| FIFO Depth | 64-byte bidirectional buffer enabling burst transfers without host latency stalls |
| Host Interfaces | SPI (10 Mbit/s), I²C (Fast/High-speed modes), UART (RS232-level), 8-bit parallel (HVQFN40 only) |
| Operating Temperature | −30 °C to +85 °C ambient for standard version (PN5120A0HN/C2) |
| Package | HVQFN40 (6 × 6 × 0.85 mm, SOT618-1) with 40 terminals and thermal enhancement |
Pinout & Package
HVQFN40 package (SOT618-1) with 40-terminal no-lead construction, 6 mm × 6 mm body, 0.85 mm height, and exposed thermal pad for enhanced thermal dissipation in high-duty-cycle NFC applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | RF Transmitter Outputs | Differential 13.56 MHz carrier outputs driving antenna matching network; require external LC tuning |
| RX | RF Receiver Input | Differential input for demodulated card response signals; referenced to AVSS |
| TVDD, TVSS | Transmitter Power/Ground | Dedicated supply domain isolating high-current RF output stage from digital/analog logic |
| AVDD, AVSS | Analog Power/Ground | Isolated supply for RF front-end, oscillator, and ADC circuitry to minimize noise coupling |
| DVDD, DVSS | Digital Power/Ground | Core logic and register bank supply; decoupling critical for SPI/I²C timing integrity |
| IRQ | Interrupt Request Output | Active-low open-drain signal indicating FIFO status, error, or protocol event completion |
| NRSTPD | Reset & Power-Down Control | Active-low pin enabling hard power-down (≤5 µA) or soft power-down (≤10 µA) with oscillator disable |
| OSCIN, OSCOUT | Crystal Oscillator Interface | Supports 27.12 MHz fundamental-mode quartz crystal; internal inverter eliminates external components |
| NCS, NRD, NWR, ALE, D0–D7 | Parallel Host Interface | 8-bit address/data bus with chip-select and strobe control-available only on HVQFN40 variant |
Key Features
| Feature | Design Value |
|---|---|
| MIFARE Classic Encryption Support | Integrated Crypto1 IP enables secure authentication and data exchange with legacy MIFARE Classic cards in Reader/Writer mode |
| Multi-Protocol Framing Engine | Hardware-accelerated ISO/IEC 14443A, FeliCa, and NFCIP-1 framing with automatic CRC16 and parity generation |
| RF Field Detection | On-chip RF level detector triggers wake-up or field presence alerts without host polling overhead |
| S2C Secure Interface | Dedicated digital interface with independent SVDD supply for connecting secure elements (e.g., smart card ICs) at >424 kbit/s |
| Low-Power Operation | Hard power-down current ≤5 µA enables battery-powered designs with extended standby life |
| Programmable I/O Pins | AUX1/AUX2 configurable as test outputs or general-purpose signals during development and production testing |
Applications
| Smart Access Control Terminal | Mobile Point-of-Sale (mPOS) Reader |
|---|---|
Use Scenario: Contactless credential verification at office entry gates using MIFARE DESFire EV2 cards. IC Role / Device Role / Timing Role: PN5120A0HN/C2 acts as the analog/digital NFC transceiver, handling ASK modulation, Manchester decoding, and ISO/IEC 14443-4 protocol framing. Use Value: Enables 50 mm read range with minimal external components and supports fast 424 kbit/s secure session establishment via MIFARE Crypto1. |
Use Scenario: Compact handheld payment terminal accepting FeliCa-based Suica and ICOCA transit cards. IC Role / Device Role / Timing Role: PN5120A0HN/C2 operates in FeliCa Reader/Writer mode, managing preamble insertion, sync byte generation, and CRC calculation per FeliCa spec. Use Value: Delivers reliable 424 kbit/s FeliCa transactions with built-in load modulation detection and robust demodulation under noisy EMI conditions. |
| Industrial Asset Tag Reader | NFCIP-1 Peer-to-Peer Link |
Use Scenario: Ruggedized handheld scanner reading ISO/IEC 14443B ID cards in warehouse inventory systems. IC Role / Device Role / Timing Role: PN5120A0HN/C2 implements ISO/IEC 14443B reader functionality including subcarrier load modulation detection and BPSK decoding. Use Value: Supports interoperability with government-issued ID cards and e-passports requiring ISO/IEC 14443B compliance without external protocol stack overhead. |
Use Scenario: Bidirectional data exchange between two NFC-enabled devices (e.g., smartphone-to-kiosk) using NFCIP-1 active/passive modes. IC Role / Device Role / Timing Role: PN5120A0HN/C2 serves as NFCIP-1 initiator/target, executing Ecma-340/ISO/IEC 18092 framing, collision avoidance, and 424 kbit/s Manchester encoding. Use Value: Enables certified NFC Forum peer-to-peer handover (e.g., Bluetooth pairing, URL sharing) with deterministic timing and hardware CRC validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN5180A0HN/C2 | Successor IC with integrated NFC controller firmware, higher integration (no external MCU required), and extended 848 kbit/s support | Reduces BOM count and firmware development effort for standalone NFC readers | Select when migrating to firmware-offloaded architecture or requiring higher data rates beyond 424 kbit/s |
| CLRC66302HN/C2 | Lower-cost NFC frontend with identical HVQFN40 package but reduced feature set: no S2C interface, no MIFARE Crypto1 licensing, max 212 kbit/s | Suitable for cost-sensitive ISO/IEC 14443A-only applications without secure element coupling | Select when MIFARE Classic or S2C connectivity is not required and budget constraints dominate |
Compared with PN5120A0HN/C2, PN5180A0HN/C2 adds embedded firmware and 848 kbit/s capability but increases system complexity for simple transceiver use cases; CLRC66302HN/C2 offers lower cost and footprint compatibility but omits critical security and speed features needed for modern NFC deployments.
Availability
PN5120A0HN/C2 is available at Aetrix Electronics and suitable for smart access control terminals, mobile point-of-sale readers, industrial asset tag scanners, and NFCIP-1 peer-to-peer links requiring stable component supply across automotive-grade temperature ranges and long lifecycle support.
Supply support for PN5120A0HN/C2 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 consumer applications, with deep expertise in RFID and NFC technology.
The PN512 product line was designed as a highly integrated, standards-compliant NFC frontend to accelerate development of interoperable contactless readers and card emulators across payment, identification, and IoT markets.
FAQ
What host interfaces does the PN5120A0HN/C2 support?
The PN5120A0HN/C2 supports SPI (up to 10 Mbit/s), I²C (Fast mode up to 400 kBd, High-speed mode up to 3.4 MBd), serial UART (RS232-level), and an 8-bit parallel interface. The parallel interface is exclusive to the HVQFN40 package variant (PN5120A0HN/C2) and requires NCS, NRD, NWR, and ALE control signals. All interfaces share the same register map and command structure, enabling flexible host MCU selection without firmware redesign.
Does the PN5120A0HN/C2 include MIFARE Classic encryption capability?
Yes, the PN5120A0HN/C2 includes licensed NXP MIFARE Crypto1 intellectual property, enabling full authentication and encrypted data exchange with MIFARE Classic 1K/4K cards in Reader/Writer mode. This hardware-accelerated crypto engine operates independently of the host controller and is activated automatically during ISO/IEC 14443A anticollision and authentication sequences defined in the MIFARE protocol specification.
What is the maximum operating distance achievable with the PN5120A0HN/C2?
The PN5120A0HN/C2 achieves a typical operating distance of 50 mm in Reader/Writer mode and up to 100 mm in Card Operation mode, depending on antenna size, tuning, and external field strength. These values assume optimal 40 Ω antenna matching between TX1 and TX2, 3 V supply, and compliant ISO/IEC 14443A/FeliCa/NFCIP-1 transponders. Distance is not guaranteed for non-standard antennas or unshielded environments.
Can the PN5120A0HN/C2 operate in both Reader and Card Emulation modes simultaneously?
No, the PN5120A0HN/C2 operates in one mode at a time-Reader/Writer, Card Operation, or NFCIP-1-as configured via its Command Register. Mode switching requires software reconfiguration and may involve resetting the analog front-end. Simultaneous dual-role operation is not supported; for true concurrent functionality, a companion secure element or external controller is required to manage state transitions.
What power supply domains does the PN5120A0HN/C2 require?
The PN5120A0HN/C2 requires five independent supply domains: VDDA/VSSA (2.5–3.6 V analog), VDDD/VSSD (2.5–3.6 V digital), TVDD/TVSS (transmitter stage, ≤VDDD), PVDD/PVSS (pad voltage, ≤VDDD), and SVDD (S2C interface, 1.6–3.6 V). Each domain must be decoupled with ≥100 nF ceramic capacitors close to respective pins. Mixing or shorting domains risks functional failure or increased EMI susceptibility.
PN5120A0HN/C2,557 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:
- I2C, SPI, UART
- Voltage - Supply:
- 2.5V ~ 3.6V
- Operating Temperature:
- -40°C ~ 90°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 40-HVQFN (6x6)
PN5120A0HN/C2,557 FAQ
1.How can I place an order for PN5120A0HN/C2,557 through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5120A0HN/C2,557 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 PN5120A0HN/C2,557 reliable?
The price and inventory of PN5120A0HN/C2,557 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5120A0HN/C2,557 is usually 5 days.
3.What payment methods are accepted for PN5120A0HN/C2,557?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5120A0HN/C2,557 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5120A0HN/C2,557?
PN5120A0HN/C2,557 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5120A0HN/C2,557 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 PN5120A0HN/C2,557?
For technical support, including PN5120A0HN/C2,557 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5120A0HN/C2,557 requirements.
6.How does Aetrix verify that PN5120A0HN/C2,557 is sourced from the original manufacturer or authorized distributors?
All PN5120A0HN/C2,557 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 PN5120A0HN/C2,557 meets industry standards.
7.What is the process for return or replacement of PN5120A0HN/C2,557?
All PN5120A0HN/C2,557 units undergo pre-shipment inspection (PSI). If there is an issue with PN5120A0HN/C2,557, 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 PN5120A0HN/C2,557 part is unused and in its original packaging.
Return procedure for PN5120A0HN/C2,557:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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