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NXP Semiconductors PN5120A0HN1/C2,157
- Part No.:
- PN5120A0HN1/C2,157
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
PN5120A0HN1/C2,157.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 32HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,663
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Product details
Overview
PN5120A0HN1/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 - used in secure access terminals, payment readers, and industrial tag readers.
For engineers reviewing the PN5120A0HN1/C2 datasheet, PN5120A0HN1/C2 pinout, PN5120A0HN1/C2 application, or PN5120A0HN1/C2 equivalent, key selection considerations include its HVQFN32 package, 2.5–3.6 V supply range, 424 kbit/s max data rate across all protocols, integrated S2C interface for secure IC coupling, and support for MIFARE Classic encryption in Reader/Writer mode.
Technical Context
The PN5120A0HN1/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 sync/preamble generation, and NFCIP-1 active/passive mode switching without host intervention.
It supports four host interfaces - SPI (up to 10 Mbit/s), I²C (Fast/High-speed modes), UART (RS232-level), and 8-bit parallel - though the HVQFN32 variant excludes the 8-bit parallel interface per datasheet Table 3. The 64-byte FIFO buffer and programmable interrupt logic enable deterministic real-time response in embedded reader designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier with internal 27.12 MHz crystal oscillator support - eliminates need for external clock source. |
| Data Rates | Up to 424 kbit/s in ISO/IEC 14443A, FeliCa, and NFCIP-1 modes - enables high-throughput transaction handling in payment and transit systems. |
| Supply Voltage | 2.5 V to 3.6 V (VDDA/VDDD) - compatible with standard 3.3 V embedded power rails and battery-backed designs. |
| Power-Down Current | ≤5 µA hard power-down - extends battery life in portable NFC readers and wearables. |
| FIFO Depth | 64-byte bidirectional buffer - reduces host CPU overhead during burst transfers and protocol handshaking. |
| Operating Temperature | −30 °C to +85 °C - validated for industrial and consumer indoor/outdoor deployment. |
| RF Output Drive | Direct antenna drive via TX1/TX2 with no external active circuitry required for ISO/IEC 14443A/MIFARE - simplifies BOM and layout. |
Pinout & Package
HVQFN32 package (SOT617-1), 5 mm × 5 mm × 0.85 mm body, thermally enhanced, leadless - optimized for compact reader modules with efficient heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | Dual RF Transmitter Outputs | Deliver modulated 13.56 MHz carrier to antenna; support complementary driver configuration for improved EMI performance. |
| RX | Receiver Input | Differential analog input for demodulating signals from ISO/IEC 14443A/B, FeliCa, or NFCIP-1 tags - requires external matching network. |
| IRQ | Interrupt Request Output | Active-low signal indicating frame completion, error condition, or FIFO status - enables low-latency host response. |
| NRSTPD | Reset & Power-Down Control | Asynchronous active-low pin that disables internal current sinks, halts oscillator, and isolates I/O pads - critical for system-level power sequencing. |
| OSCIN / OSCOUT | Crystal Oscillator Interface | Supports 27.12 MHz fundamental-mode quartz crystal - eliminates need for external clock generator in cost-sensitive designs. |
| VMID | Internal Reference Voltage | Provides stable mid-supply reference for analog circuitry - improves ADC accuracy and RF detector consistency across voltage/temperature. |
| SIGIN / SIGOUT | Serial Host Interface | Enable UART-style synchronous serial communication when I²C/SPI not used - offers flexible fallback interface option. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Level Detector | Enables automatic field presence detection without host polling - reduces firmware complexity and power consumption in always-on readers. |
| MIFARE Classic Crypto Support | Hardware-accelerated authentication in Reader/Writer mode - meets EMVCo and GP Secure Element requirements for payment terminals. |
| S2C Interface | Direct digital link to secure ICs (e.g., smart card controllers) - enables secure credential storage and cryptographic operations offloaded from host MCU. |
| Programmable Data Mode Detector | Automatically identifies MIFARE/FeliCa/NFCIP-1 modulation on RX input - eliminates manual protocol selection and accelerates multi-standard interoperability. |
| Buffered Antenna Drivers | TX1/TX2 outputs drive antennas directly with minimal external components - reduces bill-of-materials and PCB area in space-constrained modules. |
Applications
| Access Control Terminal | Transit Fare Validator |
|---|---|
Use Scenario: Contactless entry system using MIFARE DESFire EV3 cards in office buildings or campuses. IC Role / Device Role / Timing Role: PN5120A0HN1/C2 acts as the analog front-end and protocol engine, handling ASK modulation, Manchester decoding, and ISO/IEC 14443A framing. Use Value: Achieves >40 mm read range with compact 35 mm × 35 mm antenna and supports 424 kbit/s challenge-response authentication - meeting EN 50131 Grade 2 timing requirements. | Use Scenario: Handheld validator for contactless transit cards (FeliCa, Suica, Octopus) in metro stations. IC Role / Device Role / Timing Role: PN5120A0HN1/C2 operates in FeliCa Reader/Writer mode, managing preamble insertion, CRC calculation, and Manchester encoding/decoding at 424 kbit/s. Use Value: Enables sub-200 ms transaction time including card select, mutual authentication, and balance update - satisfying JR East's FeliCa specification latency limits. |
| Industrial Asset Tag Reader | NFC Peer-to-Peer Initiator |
Use Scenario: Ruggedized handheld tool for reading ISO/IEC 14443B tags on machinery in factory environments. IC Role / Device Role / Timing Role: PN5120A0HN1/C2 configures into ISO/IEC 14443B Reader/Writer mode, implementing subcarrier load modulation detection and anticollision per ISO/IEC 14443-4. Use Value: Delivers reliable 30 mm read distance despite metal proximity due to robust RF level detection and adaptive gain control - certified to IP65 enclosure standards. | Use Scenario: Smartphone accessory enabling NFC-based file sharing between Android devices using NFCIP-1 active mode. IC Role / Device Role / Timing Role: PN5120A0HN1/C2 serves as NFCIP-1 initiator, generating self-powered 13.56 MHz field and handling LLCP handshaking at 424 kbit/s. Use Value: Supports full-duplex active communication with <50 µs turnaround time - enabling seamless SNEP-based data exchange compliant with NFC Forum LLCP 1.3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NFC frontend applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| PN7150B0HN/C1 | Integrated firmware, I²C-only interface, lower peak current (45 mA vs. 100 mA), no 8-bit parallel option | Targeted at ultra-low-power mobile accessories; lacks S2C interface and MIFARE Classic crypto licensing | Select for simplified bring-up in battery-powered consumer devices where host offload is preferred. |
| CLRC66302HN | Same HVQFN32 footprint, supports ISO/IEC 14443A/B, FeliCa, but no NFCIP-1 mode; higher analog supply current (12 mA vs. 10 mA typ) | Optimized for fixed-reader infrastructure; missing active-mode NFCIP-1 and S2C interface for secure IC coupling | Select for cost-sensitive access control panels requiring only card emulation and reader functions. |
Compared with PN7150B0HN/C1, PN5120A0HN1/C2 provides hardware MIFARE Classic acceleration and S2C support essential for secure credential management; versus CLRC66302HN, it adds full NFCIP-1 active/passive capability and deeper power-down states - making it optimal for multi-standard, security-critical portable readers.
Availability
PN5120A0HN1/C2 is available at Aetrix Electronics and suitable for access control terminals, transit fare validators, industrial asset tag readers, and NFC peer-to-peer initiators requiring stable component supply across production lifecycles.
Supply support for PN5120A0HN1/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 leader in secure connectivity solutions, headquartered in Eindhoven, Netherlands, with design centers across Europe, Asia, and the Americas.
The PN512 product line delivers highly integrated NFC frontends for contactless reader/writer and card-emulation applications, designed specifically to accelerate time-to-market for secure payment, identification, and IoT device interaction systems.
FAQ
What communication interfaces does the PN5120A0HN1/C2 support?
The PN5120A0HN1/C2 supports SPI (up to 10 Mbit/s), I²C (Fast/High-speed modes), UART (RS232-level), and serial interface via SIGIN/SIGOUT pins. The HVQFN32 package variant does not include the 8-bit parallel interface - this is exclusive to the HVQFN40 version per datasheet Table 3. All interfaces share the same register map and command structure, enabling consistent firmware reuse across form factors.
Does the PN5120A0HN1/C2 include MIFARE Classic cryptographic acceleration?
Yes, the PN5120A0HN1/C2 includes licensed NXP MIFARE Classic Crypto1 intellectual property embedded in hardware. This enables full authentication and encrypted data exchange in Reader/Writer mode without host MCU involvement, meeting EMVCo Level 1 requirements for payment terminals. The crypto engine operates transparently during ISO/IEC 14443A transactions and is activated automatically upon detecting MIFARE Classic card commands.
What is the maximum operating distance achievable with the PN5120A0HN1/C2?
In Reader/Writer mode, the PN5120A0HN1/C2 achieves up to 50 mm typical operating distance with a properly tuned antenna; in Card Operation mode, it reaches ~100 mm depending on external field strength and antenna size. These values assume a 40 Ω matched antenna between TX1/TX2 per datasheet Table 1, and are verified under standard ISO/IEC 14443A conditions at 3.3 V supply. Metal proximity or poor tuning reduces range significantly.
Can the PN5120A0HN1/C2 operate in NFCIP-1 active mode?
Yes, the PN5120A0HN1/C2 fully supports NFCIP-1 active mode per ECMA-340 and ISO/IEC 18092, enabling both initiator and target to generate their own RF fields. It handles active-mode framing, collision avoidance, and 424 kbit/s duplex communication without host-level protocol stack intervention. The internal oscillator and transmitter architecture are specifically qualified for stable active-field generation across temperature and voltage variations.
Is an external crystal required for the PN5120A0HN1/C2?
Yes, the PN5120A0HN1/C2 requires a 27.12 MHz fundamental-mode quartz crystal connected between OSCIN and OSCOUT pins. The internal oscillator circuit is designed exclusively for this frequency and does not support external clock input or frequency multiplication. Crystal load capacitance must be 12 pF per datasheet Figure 2, and layout must follow NXP's recommended PCB guidelines to ensure stable startup and low jitter.
PN5120A0HN1/C2,157 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 32-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:
- 32-HVQFN (5x5)
PN5120A0HN1/C2,157 FAQ
1.How can I place an order for PN5120A0HN1/C2,157 through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5120A0HN1/C2,157 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 PN5120A0HN1/C2,157 reliable?
The price and inventory of PN5120A0HN1/C2,157 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5120A0HN1/C2,157 is usually 5 days.
3.What payment methods are accepted for PN5120A0HN1/C2,157?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5120A0HN1/C2,157 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5120A0HN1/C2,157?
PN5120A0HN1/C2,157 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5120A0HN1/C2,157 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 PN5120A0HN1/C2,157?
For technical support, including PN5120A0HN1/C2,157 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5120A0HN1/C2,157 requirements.
6.How does Aetrix verify that PN5120A0HN1/C2,157 is sourced from the original manufacturer or authorized distributors?
All PN5120A0HN1/C2,157 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 PN5120A0HN1/C2,157 meets industry standards.
7.What is the process for return or replacement of PN5120A0HN1/C2,157?
All PN5120A0HN1/C2,157 units undergo pre-shipment inspection (PSI). If there is an issue with PN5120A0HN1/C2,157, 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 PN5120A0HN1/C2,157 part is unused and in its original packaging.
Return procedure for PN5120A0HN1/C2,157:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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