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NXP Semiconductors PN5120A0HN/C2,551
- Part No.:
- PN5120A0HN/C2,551
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN5120A0HN/C2,551.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:337
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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, 64-byte FIFO, and supports ISO/IEC 14443A/MIFARE, ISO/IEC 14443B, FeliCa, and NFCIP-1 protocols - enabling secure contactless transactions in payment terminals and access control readers.
For engineers reviewing the PN5120A0HN/C2 datasheet, PN5120A0HN/C2 pinout, PN5120A0HN/C2 application, or PN5120A0HN/C2 equivalent, this page delivers verified technical context, HVQFN40 package mapping, confirmed 40-pin configuration, real-world operating distances (up to 50 mm in Reader mode), and validated alternative parts for NFC system design.
Technical Context
The PN5120A0HN/C2 implements a fully integrated analog front-end with buffered TX1/TX2 outputs capable of driving tuned antennas without external active circuitry in ISO/IEC 14443A/MIFARE Reader mode. Its receiver includes RF level detection, data mode detection, and demodulation circuitry optimized for MIFARE, FeliCa, and NFCIP-1 signal formats.
Digital subsystems include a contactless UART, programmable timer, interrupt controller, and register bank supporting SPI (up to 10 Mbit/s), I²C (Fast/High-speed modes), UART (up to 1228.8 kBd), and 8-bit parallel interface - all managed via a 64-byte FIFO buffer and CRC16 coprocessor compliant with ISO/IEC 14443-3 and FeliCa standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier - enables interoperability with global NFC standards including ISO/IEC 14443, FeliCa, and NFCIP-1. |
| Supply Voltage Range | 2.5 V to 3.6 V (VDDA/VDDD) - supports single-supply operation across industrial and consumer voltage rails. |
| Transfer Speeds | Up to 424 kbit/s in ISO/IEC 14443A, FeliCa, and NFCIP-1 modes - enables high-throughput card emulation and peer-to-peer exchange. |
| Operating Distance | Up to 50 mm in Reader/Writer mode (antenna-dependent) - meets typical requirements for handheld POS and access readers. |
| FIFO Buffer Size | 64 bytes - reduces host CPU overhead by enabling burst transfers and minimizing interrupt frequency. |
| Host Interfaces | SPI (10 Mbit/s), I²C (400 kBd Fast / 3400 kBd High-speed), UART (1228.8 kBd), 8-bit parallel - provides flexible integration with microcontrollers and SoCs. |
| Power-Down Current | ≤10 µA (soft power-down with RF detector active) - extends battery life in portable NFC readers and wearables. |
Pinout & Package
PN5120A0HN/C2 is housed in a 6 × 6 × 0.85 mm HVQFN40 (SOT618-1) thermally enhanced quad flat no-lead package with wettable flanks for reliable solder joint inspection.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | RF Transmitter Outputs | Deliver modulated 13.56 MHz carrier to antenna; support complementary driver configuration for efficient field generation. |
| RX | Receiver Input | Accepts load-modulated signals from cards/transponders; feeds internal demodulator and data mode detector. |
| IRQ | Interrupt Request Output | Active-low signal indicating completion of command execution, FIFO status, or error condition - enables event-driven host control. |
| N_RSTPD | Reset & Power-Down Control | Low-active input that disables oscillator, disconnects I/O pads, and shuts down internal current sinks - critical for low-power sequencing. |
| D0–D7, A0–A5, NCS, NRD, NWR, ALE | 8-bit Parallel Host Interface | Enables direct memory-mapped access; only available in HVQFN40 package - simplifies integration with legacy MCU buses. |
| OSCIN/OSCOUT | 27.12 MHz Crystal Interface | Supports external quartz crystal or clock source for precise RF carrier generation - eliminates need for external oscillator IC. |
| TVDD/TVSS, PVDD/PVSS, AVDD/AVSS, DVDD/DVSS, SVDD | Separated Power Domains | Isolate analog, digital, transmitter, pad, and S2C supply paths - minimizes noise coupling and improves RF sensitivity. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Level Detector | Enables automatic field presence detection without host polling - reduces latency in wake-on-field applications. |
| MIFARE Classic Crypto-1 Licensing | Embedded IP allows secure authentication with MIFARE Classic cards without external crypto co-processor - accelerates payment terminal certification. |
| S2C Interface Support | Provides dedicated digital path for secure IC communication - enables full card emulation when paired with certified secure elements. |
| Programmable I/O Pins | D0–D7 and AUX1/AUX2 pins configurable as test points, GPIO, or I²C address selectors - increases board-level debug and configuration flexibility. |
| Internal Oscillator + Crystal Interface | On-chip oscillator circuit with 27.12 MHz crystal input eliminates external timing components - reduces BOM count and PCB area. |
Applications
| Payment Terminal Reader | Access Control Reader |
|---|---|
Use Scenario: Contactless EMV transaction initiation at point-of-sale terminals using ISO/IEC 14443A cards and mobile wallets. IC Role / Device Role / Timing Role: NFC frontend handling analog modulation/demodulation, protocol framing, and CRC validation for PCD-to-PICC communication. Use Value: Enables full EMVCo Level 1 compliance with ≤50 mm read range and 424 kbit/s throughput - meeting PCI PTS v6.0 timing requirements. |
Use Scenario: Secure credential verification in office building entry systems using MIFARE DESFire EV2 or FeliCa cards. IC Role / Device Role / Timing Role: Reader/writer IC managing anti-collision, authentication, and encrypted data exchange per ISO/IEC 14443-4. Use Value: Supports dual-protocol operation (MIFARE + FeliCa) on single hardware - reduces SKU count for global deployments. |
| Smartphone NFC Extension Module | Industrial Asset Tag Reader |
Use Scenario: External NFC reader add-on for tablets lacking built-in NFC, used in logistics scanning and inventory management. IC Role / Device Role / Timing Role: Standalone NFC controller interfacing via SPI to host application processor - handles all physical and data-link layer functions. Use Value: 64-byte FIFO and programmable interrupts minimize host CPU load during rapid tag polling - sustains >10 tags/sec scan rate. |
Use Scenario: Ruggedized handheld reader for maintenance technicians verifying NFC-enabled equipment tags in factory environments. IC Role / Device Role / Timing Role: Industrial-grade NFC frontend operating from −30 °C to +85 °C with robust ESD protection on RX/TX lines. Use Value: HVQFN40 package with thermal enhancement ensures stable RF performance under continuous duty cycle - avoids thermal throttling in enclosed enclosures. |
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, smaller HVQFN32 package, lower power (3.5 mA typical active current), but no 8-bit parallel interface. | Targeted at space-constrained consumer devices; lacks MIFARE Classic licensing and full ISO/IEC 14443B support. | Select for cost-sensitive, firmware-offloaded designs where parallel bus is unnecessary and MIFARE Classic is not required. |
| ST25R3916B | Higher RF output (1.5 W), extended temperature range (−40 °C to +105 °C), integrated analog front-end calibration, but requires external microcontroller for protocol stack. | Optimized for automotive and industrial readers requiring extended ambient range and higher field strength. | Select when >50 mm operating distance or AEC-Q100 qualification is mandatory - note ST25R3916B lacks embedded MIFARE IP. |
Compared with PN5120A0HN/C2, PN7150B0HN/C1 reduces host software burden via embedded firmware but sacrifices MIFARE Classic support and parallel interface flexibility; ST25R3916B delivers superior RF robustness and temperature range but requires full protocol stack implementation externally - making PN5120A0HN/C2 optimal for balanced performance, licensing, and interface versatility in commercial readers.
Availability
PN5120A0HN/C2 is available at Aetrix Electronics and suitable for payment terminals, access control readers, industrial asset tag scanners, and smartphone NFC extension modules requiring stable component supply and long-term 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 IoT markets, with over 20 years of NFC innovation.
The PN512 product line was designed as a highly integrated, standards-compliant NFC frontend to accelerate development of interoperable contactless readers and card emulators - targeting EMVCo, NFC Forum, and ISO/IEC certification readiness.
FAQ
What communication protocols does the PN5120A0HN/C2 support?
The PN5120A0HN/C2 supports ISO/IEC 14443A/MIFARE (including MIFARE Classic encryption), ISO/IEC 14443B, FeliCa, and NFCIP-1 protocols across Reader/Writer, Card Operation, and peer-to-peer modes. It handles full physical and data-link layer processing for all four standards, with CRC and parity generation performed in hardware. The PN5120A0HN/C2 does not implement higher-layer application logic - that remains the responsibility of the host controller.
Does the PN5120A0HN/C2 include MIFARE Classic cryptographic licensing?
Yes, the PN5120A0HN/C2 includes embedded NXP MIFARE Classic Crypto-1 intellectual property licensing rights, enabling secure authentication with MIFARE Classic 1K/4K cards without external crypto hardware. This licensing is factory-programmed and requires no additional royalty payments or license activation - it is fully operational upon power-up and configuration of the MIFARE unit in the PN5120A0HN/C2 register set.
What is the maximum operating distance achievable with the PN5120A0HN/C2?
The PN5120A0HN/C2 achieves up to 50 mm operating distance in Reader/Writer mode and NFCIP-1 mode, and approximately 100 mm in Card Operation mode - all dependent on antenna size, tuning, and external field strength. These values are typical under standardized test conditions using a 40 Ω matched antenna between TX1 and TX2. Real-world performance varies with PCB layout, shielding, and power supply stability.
Which host interfaces are available on the PN5120A0HN/C2?
The PN5120A0HN/C2 supports SPI (up to 10 Mbit/s), I²C (Fast mode up to 400 kBd, High-speed mode up to 3400 kBd), UART (RS232-compatible up to 1228.8 kBd), and an 8-bit parallel interface - the latter exclusive to the HVQFN40 package. All interfaces share the same register map and FIFO buffer, allowing seamless migration between host architectures without firmware redesign.
What power supply requirements does the PN5120A0HN/C2 have?
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, ≤VDDD), PVDD/PVSS (pad supply), and SVDD (S2C interface). VDDA, VDDD, and VDD(TVDD) must be equal; PVDD must be ≤ VDDD. Total active current is typically <100 mA, with soft power-down consuming ≤10 µA - enabling battery-powered operation with proper sequencing.
PN5120A0HN/C2,551 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/C2,551 FAQ
1.How can I place an order for PN5120A0HN/C2,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5120A0HN/C2,551 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/C2,551 reliable?
The price and inventory of PN5120A0HN/C2,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5120A0HN/C2,551 is usually 5 days.
3.What payment methods are accepted for PN5120A0HN/C2,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5120A0HN/C2,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5120A0HN/C2,551?
PN5120A0HN/C2,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5120A0HN/C2,551 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/C2,551?
For technical support, including PN5120A0HN/C2,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5120A0HN/C2,551 requirements.
6.How does Aetrix verify that PN5120A0HN/C2,551 is sourced from the original manufacturer or authorized distributors?
All PN5120A0HN/C2,551 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/C2,551 meets industry standards.
7.What is the process for return or replacement of PN5120A0HN/C2,551?
All PN5120A0HN/C2,551 units undergo pre-shipment inspection (PSI). If there is an issue with PN5120A0HN/C2,551, 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/C2,551 part is unused and in its original packaging.
Return procedure for PN5120A0HN/C2,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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