My Inquiry
My Account
NXP Semiconductors PN5120A0HN/C2,518
- Part No.:
- PN5120A0HN/C2,518
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
PN5120A0HN/C2,518.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 40HVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,830
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PN5120A0HN/C2 from NXP Semiconductors is a full NFC Forum-compliant frontend IC for 13.56 MHz contactless communication, supporting Reader/Writer (ISO/IEC 14443A/MIFARE, ISO/IEC 14443B, FeliCa), Card Operation, and NFCIP-1 modes. It integrates analog modulation/demodulation, CRC coprocessing, RF level detection, and buffered TX1/TX2 drivers enabling direct antenna connection with minimal external components. It operates from 2.5 V to 3.6 V and delivers up to 50 mm read range in Reader mode.
For engineers reviewing the PN5120A0HN/C2 datasheet, PN5120A0HN/C2 pinout, PN5120A0HN/C2 application, or PN5120A0HN/C2 equivalent, this page provides verified technical context, HVQFN40 package mapping, confirmed 40-pin configuration, real-world operating distance data (up to 100 mm in Card Operation mode), and validated alternative options for NFC system design.
Technical Context
The PN5120A0HN/C2 implements a fully integrated analog front-end with dual transmitter outputs (TX1/TX2) for 13.56 MHz carrier generation, an RF level detector for field presence sensing, and a data mode detector to auto-identify MIFARE/FeliCa/NFCIP-1 protocols prior to demodulation. Its digital baseband handles ISO/IEC 14443A framing, parity, and CRC16 per Part 3, plus FeliCa-specific framing with automatic preamble/sync insertion and CRC calculation.
It supports four host interfaces-SPI (up to 10 Mbit/s), I²C (Fast/High-speed modes), UART (RS232-level, up to 1228.8 kBd), and 8-bit parallel-with IRQ-driven interrupt control and a 64-byte FIFO buffer. The internal oscillator accepts 27.12 MHz crystal input via OSCIN/OSCOUT, and S2C interface enables secure IC coupling for card emulation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier with integrated oscillator support for 27.12 MHz crystal - eliminates need for external clock source. |
| Supply Voltage Range | 2.5 V to 3.6 V (VDDA/VDDD/VDD(TVDD)) - single-rail compatibility with common logic domains. |
| Reader Mode Range | Up to 50 mm with tuned antenna - enables robust proximity interaction in access control and payment terminals. |
| Card Operation Range | Up to 100 mm depending on antenna and field strength - supports extended-range card emulation in wearables and smart tags. |
| Max Data Rate | 424 kbit/s in ISO/IEC 14443A, FeliCa, and NFCIP-1 modes - meets high-throughput requirements for transit ticketing and fast pairing. |
| FIFO Depth | 64-byte send/receive buffer - reduces host CPU overhead and prevents data loss during burst transfers. |
| Power-Down Current | ≤10 µA (soft), ≤5 µA (hard) at 3 V - extends battery life in portable NFC readers and IoT edge devices. |
Pinout & Package
PN5120A0HN/C2 is housed in a plastic thermal enhanced very thin quad flat no-lead (HVQFN40) package measuring 6 × 6 × 0.85 mm (SOT618-1), with 40 terminals arranged in a perimeter layout and exposed thermal pad for improved heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TX1, TX2 | Modulated RF output | Drive 13.56 MHz carrier directly into antenna network; supports complementary driver configuration for 40 Ω matched loads. |
| RX | Receiver input | Accepts load-modulated signals from cards/targets; feeds analog demodulator chain for ISO/IEC 14443A/B, FeliCa, NFCIP-1 decoding. |
| IRQ | Interrupt request output | Active-low signal indicating frame completion, error, or RF field detection - enables event-driven host firmware architecture. |
| N_RSTPD | Reset & power-down control | Low-active pin disabling oscillator, current sinks, and I/O pads; rising edge triggers internal reset sequence. |
| D0–D7 | Bi-directional data bus | Supports 8-bit parallel interface (with ALE/NRD/NWR/NCS); repurposed as I²C address pins or test I/Os in serial mode. |
| OSCIN / OSCOUT | Crystal oscillator interface | Connects to 27.12 MHz quartz; internal inverting amplifier forms Pierce oscillator - no external capacitors required per spec. |
| TVDD / TVSS | Transmitter power supply | Dedicated 2.5–3.6 V rail for TX stage; decoupling critical for stable RF output amplitude and EMI control. |
| SVDD | S2C interface supply | Provides regulated power to S2C pads for secure IC coupling - enables standalone card emulation when paired with certified secure element. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated RF Level Detector | Enables automatic wake-up on field detection without host polling - reduces system power consumption in always-on NFC readers. |
| Programmable Data Mode Detector | Identifies MIFARE/FeliCa/NFCIP-1 protocol pre-demodulation - ensures optimal receiver configuration before signal processing begins. |
| Buffered TX Outputs | Drives antenna directly with minimal external components - eliminates need for discrete MOSFET drivers or matching networks in basic designs. |
| CRC Coprocessor | Hardware-accelerated CRC16 per ISO/IEC 14443-3 and FeliCa standards - offloads checksum computation from host MCU and guarantees protocol compliance. |
| S2C Interface Support | Provides digital path for secure IC communication - essential for EMV-compliant card emulation and cryptographic operations in payment applications. |
Applications
| Access Control Terminal | Public Transit Validator |
|---|---|
Use Scenario: Contactless credential reading at building entry points using ISO/IEC 14443A MIFARE Classic cards. IC Role / Device Role / Timing Role: PN5120A0HN/C2 acts as the analog front-end and protocol handler, managing modulation, demodulation, framing, and CRC for secure authentication exchange. Use Value: Achieves ≥45 mm reliable read range with compact PCB antenna, reducing mechanical integration complexity and enabling sleek industrial design. |
Use Scenario: High-speed fare validation in metro turnstiles using FeliCa-based Suica/Pasmo cards. IC Role / Device Role / Timing Role: PN5120A0HN/C2 operates in FeliCa Reader/Writer mode at 424 kbit/s, handling Manchester-coded physical layer and automatic preamble/sync insertion. Use Value: Enables sub-200 ms transaction time with hardware CRC and 64-byte FIFO - meets strict throughput requirements for peak-hour passenger flow. |
| Smart Wearable Emulator | NFC Peer-to-Peer Initiator |
Use Scenario: Wristband emulating contactless credit card via ISO/IEC 14443A Card Operation mode. IC Role / Device Role / Timing Role: PN5120A0HN/C2 generates digital load-modulated signals and interfaces with secure element via S2C to respond to reader commands. Use Value: Supports up to 100 mm operating distance with optimized antenna tuning - allows tap-free interaction even when device is in pocket or bag. |
Use Scenario: Smartphone accessory initiating NFC data exchange with another NFC device using NFCIP-1 Active mode. IC Role / Device Role / Timing Role: PN5120A0HN/C2 serves as NFCIP-1 initiator, generating its own 13.56 MHz field and handling full duplex 424 kbit/s communication per ECMA-340/ISO/IEC 18092. Use Value: Eliminates dependency on host SoC's NFC controller - enables dedicated, low-latency P2P link for secure file sharing or device pairing. |
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 power (2.5 µA deep sleep), no parallel interface or S2C support. | Targeted at simple reader applications without secure element coupling or high-speed parallel host interfacing. | Select when firmware abstraction and ultra-low-power operation outweigh need for S2C or multi-interface flexibility. |
| ST25DV04K-IER | Dynamic NFC tag IC (I²C EEPROM + RF interface), not a frontend - lacks transmitter, RX demodulator, or host protocol stack support. | Used for passive tag emulation only; cannot act as reader or NFCIP-1 initiator. | Select only for pure tag-side applications requiring rewritable memory and RF energy harvesting - not a functional replacement. |
Compared with PN7150B0HN/C1, PN5120A0HN/C2 offers broader interface support and S2C capability for secure card emulation but requires external firmware development; versus ST25DV04K-IER, it provides full active frontend functionality essential for reader and initiator roles, not just passive tag behavior.
Availability
PN5120A0HN/C2 is available at Aetrix Electronics and suitable for access control systems, public transit validators, smart wearable emulators, and NFC peer-to-peer initiators requiring stable component supply across industrial temperature ranges (−30 °C to +85 °C).
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, with core expertise in RFID, NFC, automotive MCUs, and secure elements.
PN5120A0HN/C2 belongs to NXP's PN512 NFC frontend product line, designed specifically for high-reliability, multi-protocol 13.56 MHz contactless communication in industrial and consumer terminals where analog integration, protocol flexibility, and secure IC coupling are critical.
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 (ECMA-340/ISO/IEC 18092) protocols across all four operating modes: Reader/Writer, Card Operation, and NFCIP-1 Active/Passive. Each mode uses dedicated analog and digital signal paths within PN5120A0HN/C2 to ensure protocol fidelity and timing compliance.
Does the PN5120A0HN/C2 include an integrated oscillator?
Yes, the PN5120A0HN/C2 includes an internal oscillator circuit that accepts a 27.12 MHz crystal connected between OSCIN and OSCOUT pins. The oscillator uses an inverting amplifier with built-in feedback, requiring no external capacitors per the datasheet specification - simplifying BOM and layout for the PN5120A0HN/C2 design.
What is the maximum operating distance achievable with the PN5120A0HN/C2 in Reader mode?
The PN5120A0HN/C2 achieves a typical operating distance of up to 50 mm in Reader/Writer mode, dependent on antenna size, tuning, and power supply. This performance is measured using a complementary driver configuration and antenna matched to 40 Ω between TX1 and TX2 at 13.56 MHz - values confirmed in the official datasheet Quick Reference Data table.
Can the PN5120A0HN/C2 operate as a contactless smart card emulator?
Yes, the PN5120A0HN/C2 supports Card Operation mode for both ISO/IEC 14443A/MIFARE and FeliCa schemes. In this mode, it generates digital load-modulated signals and - when paired with a secure IC via the S2C interface - delivers full card emulation functionality. PN5120A0HN/C2 alone provides the RF interface and baseband processing; secure element handles cryptography.
Which host interfaces are available on the PN5120A0HN/C2?
The PN5120A0HN/C2 provides SPI (up to 10 Mbit/s), I²C (Fast mode up to 400 kBd, High-speed mode up to 3400 kBd), UART (RS232-level, up to 1228.8 kBd), and 8-bit parallel interfaces. The parallel interface is only available in the HVQFN40 package variant (PN5120A0HN/C2), confirmed in Section 1.1 of the datasheet.
PN5120A0HN/C2,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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/C2,518 FAQ
1.How can I place an order for PN5120A0HN/C2,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5120A0HN/C2,518 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/C2,518 reliable?
The price and inventory of PN5120A0HN/C2,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5120A0HN/C2,518 is usually 5 days.
3.What payment methods are accepted for PN5120A0HN/C2,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5120A0HN/C2,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5120A0HN/C2,518?
PN5120A0HN/C2,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5120A0HN/C2,518 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/C2,518?
For technical support, including PN5120A0HN/C2,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5120A0HN/C2,518 requirements.
6.How does Aetrix verify that PN5120A0HN/C2,518 is sourced from the original manufacturer or authorized distributors?
All PN5120A0HN/C2,518 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/C2,518 meets industry standards.
7.What is the process for return or replacement of PN5120A0HN/C2,518?
All PN5120A0HN/C2,518 units undergo pre-shipment inspection (PSI). If there is an issue with PN5120A0HN/C2,518, 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/C2,518 part is unused and in its original packaging.
Return procedure for PN5120A0HN/C2,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PN5120A0HN/C2,518 Tags
-
SL2S2602FTBX
NXP Semiconductors
-
ST25DV04K-IER6S3
STMicroelectronics
-
ST25DV04K-IER6C3
STMicroelectronics
-
LXMSJZNCMD-217
Murata Electronics
-
NT3H2111W0FTTJ
NXP Semiconductors
-
NT3H2111W0FHKH
NXP Semiconductors
-
M24LR04E-RMC6T/2
STMicroelectronics
-
ST25DV04KC-JF6D3
STMicroelectronics
-
ST25DV64KC-IE6S3
STMicroelectronics
-
ST25DV64K-IER6T3
STMicroelectronics
-
NT3H2211W0FTTJ
NXP Semiconductors
-
NT3H2211W0FHKH
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
