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NXP Semiconductors PN5120A0ET/C2J
- Part No.:
- PN5120A0ET/C2J
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- 64-TFBGA
- Datasheet:
-
PN5120A0ET/C2J.pdf
- Description:
- IC RFID RDR/TRAN 13.56MZ 64TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,135
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Product details
Overview
PN5120A0ET/C2J 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 S2C interface for secure IC coupling. It drives ISO/IEC 14443A/MIFARE/FeliCa and NFCIP-1 communication up to 424 kbit/s in TFBGA64 packaging.
For engineers reviewing the PN5120A0ET/C2J datasheet, PN5120A0ET/C2J pinout, PN5120A0ET/C2J application, or PN5120A0ET/C2J equivalent, key selection criteria include its triple-mode NFC operation (ISO14443A/B, FeliCa, NFCIP-1), 2.5–3.6 V supply range, integrated RF level and data mode detectors, and support for SPI/I²C/UART host interfaces with programmable I/Os.
Technical Context
The PN5120A0ET/C2J implements a fully integrated analog front-end with dual TX outputs (TX1/TX2), differential RX input, and internal oscillator for 27.12 MHz crystal. Its digital baseband handles ISO/IEC 14443A framing, FeliCa sync/preamble generation, and NFCIP-1 active/passive mode switching with automatic CRC calculation per protocol.
It supports four distinct operational states: ISO14443A/MIFARE Reader/Writer with MIFARE Classic encryption; ISO14443B Read/Write (with external oscillator/power/coil); FeliCa at 212/424 kbit/s; and NFCIP-1 at 106/212/424 kbit/s - all managed via register bank and command state machine.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 13.56 MHz carrier with internal 27.12 MHz crystal oscillator support |
| Data Rates | Up to 424 kbit/s in ISO14443A, FeliCa, and NFCIP-1 modes |
| Supply Voltage | 2.5 V to 3.6 V for VDDA/VDDD/VDD(TVDD); PVDD ≤ VDDD |
| Power-Down Current | ≤5 µA hard power-down; ≤10 µA soft power-down with RF detector active |
| FIFO Depth | 64-byte bidirectional buffer for efficient host-to-RF data transfer |
| Host Interfaces | SPI (up to 10 Mbit/s), I²C (Fast/High-speed modes), UART (RS232-level), no parallel interface in TFBGA64 |
| Operating Temperature | −30 °C to +85 °C ambient for PN5120A0ET/C2 version |
Pinout & Package
PN5120A0ET/C2J uses a 64-ball TFBGA package (SOT1336-1) with 0.5 mm pitch, body size 7.0 × 7.0 × 0.9 mm, and thermal-enhanced construction for high-density NFC module integration.
| 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; connected to antenna via matching circuit |
| OSCIN / OSCOUT | Crystal Oscillator Interface | Supports 27.12 MHz quartz crystal or external clock source for precise RF timing |
| IRQ | Interrupt Request Output | Active-low signal indicating completed command, FIFO status, or error condition to host controller |
| SIGIN / SIGOUT | Serial Host Interface Signals | Support UART-style serial communication with host when SPI/I²C not selected |
| NRSTPD | Reset & Power-Down Control | Active-low pin enabling hardware reset and ultra-low-power shutdown (≤5 µA) |
| TVDD / TVSS | Transmitter Power/Ground | Dedicated supply rails for TX stage; decoupling required to minimize RF noise coupling |
| AVDD / AVSS | Analog Power/Ground | Isolated analog domain supply ensuring stable RF receiver performance and low-noise ADC operation |
Key Features
| Feature | Design Value |
|---|---|
| Triple-protocol NFC frontend | Native support for ISO14443A/MIFARE, ISO14443B, FeliCa, and NFCIP-1 - no external protocol stack required |
| Integrated RF level detector | Enables field presence detection without host polling, reducing system latency and power consumption |
| Programmable data mode detector | Automatically identifies MIFARE/FeliCa/NFCIP-1 modulation on RX path, accelerating mode switching |
| Secure IC coupling via S2C | Provides dedicated digital interface and auxiliary power (SVDD) for connecting secure elements in card emulation |
| Buffered antenna drivers | TX1/TX2 outputs drive standard 40 Ω matched antennas directly - minimal external components needed |
Applications
| Smart Access Control | Mobile Payment Terminal |
|---|---|
Use Scenario: Contactless door lock reader validating MIFARE Classic credentials in office buildings. IC Role / Device Role / Timing Role: PN5120A0ET/C2J acts as ISO14443A Reader/Writer, handling modulation, demodulation, framing, and CRC for credential exchange. Use Value: Enables 50 mm read range with compact antenna design and eliminates need for external RF amplifiers or protocol accelerators. | Use Scenario: Embedded NFC reader in point-of-sale terminal processing FeliCa transit cards in Japan. IC Role / Device Role / Timing Role: PN5120A0ET/C2J operates in FeliCa Reader/Writer mode, managing 424 kbit/s Manchester-coded communication and automatic preamble/sync insertion. Use Value: Delivers sub-100 ms transaction time with integrated FIFO and hardware CRC, meeting FeliCa speed requirements without host CPU overhead. |
| Wearable Device Card Emulation | NFC Peer-to-Peer Data Exchange |
Use Scenario: Smartwatch emulating ISO14443A card for contactless transit pass using secure element. IC Role / Device Role / Timing Role: PN5120A0ET/C2J runs in Card Operation mode, generating load-modulated responses via S2C-linked secure IC. Use Value: Achieves ~100 mm operating distance in card mode using same antenna as reader mode - simplifies mechanical design. | Use Scenario: Smartphone-to-smartphone NFC file sharing compliant with NFCIP-1 standard. IC Role / Device Role / Timing Role: PN5120A0ET/C2J executes NFCIP-1 active/passive mode negotiation and 424 kbit/s bidirectional data transfer. Use Value: Supports full Ecma-340/ISO/IEC 18092 compliance including frame formatting, error detection, and mode arbitration - no firmware adaptation needed. |
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 NFC controller with embedded firmware; single-chip solution vs. PN5120A0ET/C2J's host-dependent architecture | Reduces host MCU firmware burden but limits customization of low-level RF parameters | Select PN7150B0HN/C1 for rapid time-to-market with certified stack; retain PN5120A0ET/C2J for full protocol control and custom modulation schemes |
| CLRC66302HN | Supports ISO14443A/B, FeliCa, and NFCIP-1 but lacks integrated S2C interface and MIFARE Crypto1 licensing | Requires external secure element interface design and separate Crypto1 license negotiation | Choose CLRC66302HN when cost sensitivity outweighs need for out-of-box MIFARE Classic support and S2C power delivery |
Compared with PN7150B0HN/C1, PN5120A0ET/C2J offers greater RF parameter control and native MIFARE Classic acceleration but requires full host-side protocol stack implementation; versus CLRC66302HN, it provides licensed Crypto1 IP and integrated S2C power, enabling simpler secure element integration.
Availability
PN5120A0ET/C2J is available at Aetrix Electronics and suitable for smart access control systems, mobile payment terminals, wearable card emulation devices, and NFC peer-to-peer data exchange modules requiring stable component supply across industrial and consumer product lifecycles.
Supply support for PN5120A0ET/C2J 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, with headquarters in Eindhoven, Netherlands.
PN5120A0ET/C2J belongs to NXP's PN512 NFC frontend family, designed specifically for high-integration, multi-protocol contactless communication in space-constrained and power-sensitive embedded systems.
FAQ
What communication protocols does the PN5120A0ET/C2J support?
The PN5120A0ET/C2J supports ISO/IEC 14443A (including MIFARE Classic encryption), ISO/IEC 14443B, FeliCa, and NFCIP-1 (Ecma-340/ISO/IEC 18092) protocols. It operates in Reader/Writer, Card Operation, and NFCIP-1 modes with data rates up to 424 kbit/s. All protocol framing, CRC, and parity handling are performed internally by the PN5120A0ET/C2J hardware.
Does PN5120A0ET/C2J include MIFARE Classic cryptographic acceleration?
Yes, PN5120A0ET/C2J includes licensed NXP MIFARE Classic Crypto1 intellectual property, enabling hardware-accelerated authentication and data encryption in ISO/IEC 14443A Reader/Writer mode. This allows secure credential validation without offloading crypto operations to the host MCU, reducing transaction latency and computational load on PN5120A0ET/C2J's host system.
What host interfaces are available on PN5120A0ET/C2J?
PN5120A0ET/C2J supports SPI (up to 10 Mbit/s), I²C (Fast mode up to 400 kBd, High-speed mode up to 3400 kBd), and UART (RS232-level, up to 1228.8 kBd). The 8-bit parallel interface is not available in the TFBGA64 package (PN5120A0ET/C2J); it is only supported in HVQFN40 variants. Host interface selection is configured via pins and registers.
What is the operating temperature range for PN5120A0ET/C2J?
PN5120A0ET/C2J is rated for −30 °C to +85 °C ambient operating temperature. This specification applies to the commercial version (PN5120A0ET/C2); the industrial-grade variant (PN512AA0HN1/C2) extends to −40 °C to +90 °C but uses HVQFN32 packaging, not TFBGA64. Thermal derating is not required within this range under specified supply and load conditions.
How does PN5120A0ET/C2J handle antenna matching and RF tuning?
PN5120A0ET/C2J provides buffered TX1/TX2 outputs and a differential RX input, requiring external LC matching networks to achieve 50 mm typical read range in Reader/Writer mode. The IC includes an integrated RF level detector and programmable data mode detector to simplify antenna tuning and field detection. Matching must be optimized for 13.56 MHz with 40 Ω impedance between TX1 and TX2 per datasheet recommendations.
PN5120A0ET/C2J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- MIFARE®
- Package/Case:
- 64-TFBGA
- 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:
- 64-TFBGA (5.5x5.5)
PN5120A0ET/C2J FAQ
1.How can I place an order for PN5120A0ET/C2J through Aetrix?
Please submit a Request for Quotation (RFQ) for PN5120A0ET/C2J 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 PN5120A0ET/C2J reliable?
The price and inventory of PN5120A0ET/C2J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PN5120A0ET/C2J is usually 5 days.
3.What payment methods are accepted for PN5120A0ET/C2J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PN5120A0ET/C2J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PN5120A0ET/C2J?
PN5120A0ET/C2J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PN5120A0ET/C2J 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 PN5120A0ET/C2J?
For technical support, including PN5120A0ET/C2J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PN5120A0ET/C2J requirements.
6.How does Aetrix verify that PN5120A0ET/C2J is sourced from the original manufacturer or authorized distributors?
All PN5120A0ET/C2J 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 PN5120A0ET/C2J meets industry standards.
7.What is the process for return or replacement of PN5120A0ET/C2J?
All PN5120A0ET/C2J units undergo pre-shipment inspection (PSI). If there is an issue with PN5120A0ET/C2J, 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 PN5120A0ET/C2J part is unused and in its original packaging.
Return procedure for PN5120A0ET/C2J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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