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NXP Semiconductors NT4H2421G0DUD/02Z
- Part No.:
- NT4H2421G0DUD/02Z
- Manufacturer:
- NXP Semiconductors
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
NT4H2421G0DUD/02Z.pdf
- Description:
- CLHW
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
NT4H2421G0DUD/02Z from NXP Semiconductors is a secure NFC Forum Type 4 Tag IC implementing ISO/IEC 14443-4 and ISO/IEC 7816-4, featuring AES-128 cryptography, Secure Unique NFC (SUN) message generation per tap, 416-byte file-based memory (256-byte NDEF + 128-byte proprietary file), 50 pF input capacitance, and Common Criteria EAL4 certification for hardware and software. It enables authenticated product tagging in smart packaging, anti-counterfeiting labels, and secure IoT device onboarding.
For engineers reviewing the NT4H2421G0DUD/02Z datasheet, NT4H2421G0DUD/02Z pinout, NT4H2421G0DUD/02Z application, or NT4H2421G0DUD/02Z equivalent, key selection considerations include SUN authentication support, LRP-wrapped AES side-channel resistance, configurable per-file access control with five customer-defined keys, 10 cm read range capability, and MOA8/SOT500-4 module compatibility.
Technical Context
The NT4H2421G0DUD/02Z implements a full ISO/IEC 14443-4 PICC Type A stack with ATS negotiation, supports data rates up to 848 kbit/s via PPS, and uses a half-duplex block transmission protocol with frame sizes up to 128 bytes. Its analog front-end includes a 50 pF resonance capacitor and rectifier optimized for small-antenna applications.
Security execution relies on dedicated co-processors: AES-128 engine, CRC unit, TRNG, and LRP wrapper for enhanced side-channel attack resistance. Memory management is handled by an MMU enforcing ISO/IEC 7816-4 file access policies, with three preconfigured Elementary Files (CC, NDEF, Proprietary) and five configurable AES keys supporting CMAC, SUN, mutual authentication, and encrypted NDEF access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| NFC Compliance | Fully compliant with NFC Forum Type 4 Tag IC spec (Cert ID: 58562), ISO/IEC 14443-2/3/4, and ISO/IEC 7816-4 - ensures interoperability with all certified NFC readers and mobile devices. |
| Memory Structure | 416-byte EEPROM user memory: 32-byte CC file, 256-byte NDEF file, 128-byte proprietary file - enables standard NDEF messaging plus protected storage for sensitive payloads. |
| Cryptography | AES-128 core with LRP wrapper, five customer-definable keys, 3-pass mutual authentication, and SUN message generation - delivers tamper-resistant tag authentication and dynamic data integrity per tap. |
| Electrical | 50 pF typical input capacitance (45–55 pF range), 13.56 MHz carrier frequency - allows compact antenna design without sacrificing read distance (up to 10 cm). |
| Endurance & Retention | 200,000 write cycles minimum, 50-year data retention at 22 °C - suitable for high-volume consumer labeling and industrial traceability deployments. |
| Security Certification | Common Criteria EAL4 certified for both hardware and software - validated assurance level for anti-counterfeiting, brand protection, and regulated document authentication. |
Pinout & Package
NT4H2421G0DUD/02Z is supplied in MOA8 plastic leadless module carrier package (SOT500-4), designed for surface-mount integration into NFC-enabled labels, tags, and smart packaging substrates.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| LA | Antenna coil connection LA | Primary RF interface terminal for one side of the external loop antenna; requires impedance-matched PCB trace or flexible foil antenna. |
| LB | Antenna coil connection LB | Secondary RF interface terminal completing the antenna loop; together with LA forms resonant LC circuit tuned to 13.56 MHz. |
Key Features
| Feature | Design Value |
|---|---|
| Secure Unique NFC (SUN) | Generates tap-unique cryptographic message per NFC read - enables real-time server-side verification of physical tag presence and prevents replay attacks. |
| LRP-wrapped AES | Leakage Resilient Primitive enhances side-channel resistance beyond standard AES-128 - critical for protecting keys during power analysis on resource-constrained tags. |
| Configurable File Access | Per-file Read/Write/ReadWrite/Change permissions assigned to five customer keys - supports multi-tier security models for brand owners, service providers, and end users. |
| Random ID (RID) | Optional 4-byte dynamic identifier replacing fixed UID - satisfies GDPR and other privacy regulations by preventing long-term device tracking across interactions. |
| Encrypted Communication Modes | Three modes: Plain, CMAC-protected, or Full Enciphered+CMAC - allows trade-off between performance, integrity, and confidentiality based on use-case sensitivity. |
Applications
| Advanced Anti-Counterfeiting | Secured Exclusive User Experiences |
|---|---|
|
Use Scenario: Brand owner embeds NT4H2421G0DUD/02Z in luxury product packaging to verify authenticity at point of sale or via consumer smartphone scan. IC Role / Device Role / Timing Role: Secure NFC tag providing cryptographic proof of genuine origin via SUN message and ECC-based originality signature. Use Value: Prevents unauthorized replication by requiring live tap-unique authentication response verified against cloud backend - no static QR code or barcode can replicate this behavior. |
Use Scenario: FMCG company deploys NT4H2421G0DUD/02Z in beverage bottle caps to unlock personalized content, loyalty rewards, or limited-edition digital assets upon tap. IC Role / Device Role / Timing Role: Trusted identity anchor enabling time-bound, one-time-use digital entitlement delivery via encrypted NDEF payload and SUN-verified session. Use Value: Ensures exclusive access only to verified purchasers - each tap yields unique cryptographic token, preventing credential sharing or bulk redemption. |
| Secure Authentication of Closed-Loop Devices | Document Authentication & Provenance Tracking |
|
Use Scenario: Medical device manufacturer integrates NT4H2421G0DUD/02Z into consumable cartridges to authenticate OEM parts and auto-configure instrument settings upon insertion. IC Role / Device Role / Timing Role: Secure configuration enabler using mutual authentication and encrypted communication mode to protect firmware parameters and usage counters. Use Value: Prevents third-party cartridge use while enabling safe, automated transfer of calibration data - no insecure plaintext exchange of sensitive operational values. |
Use Scenario: Government agency issues tamper-evident credentials (e.g., diplomas, certificates) with embedded NT4H2421G0DUD/02Z for instant verification via NFC-enabled smartphones. IC Role / Device Role / Timing Role: Immutable provenance anchor storing digitally signed metadata and issuing authority signature in protected file structure. Use Value: Enables offline verification of document integrity and issuer authenticity using public-key infrastructure - no internet connection required for basic validation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar secure NFC tag applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NT4H2421G0DA8/02 | Same die, packaged in MOA8 (SOT500-4) with identical 50 pF capacitance, 416-byte memory, and SUN/LRP features - differs only in mechanical form factor and bump thickness (120 μm vs. 75 μm). | Designed for direct SMT assembly onto rigid PCBs or modules rather than wafer-level integration into flexible labels. | Select NT4H2421G0DA8/02 when board-level mounting is preferred over FFC tape-and-reel handling; electrical and security functionality are identical to NT4H2421G0DUD/02Z. |
| NT4H2421GSDUD/02 | Factory preprogrammed with NDEF message and cryptographic keys - same silicon, but delivered with SUN enabled, SDM configured, and keys provisioned per customer specification. | Reduces time-to-market for production-ready secure tags; eliminates need for post-manufacturing personalization infrastructure. | Choose NT4H2421GSDUD/02 when deploying standardized secure NFC workflows at scale - avoids risk of key mismanagement during field programming. |
Compared with NT4H2421G0DUD/02Z, NT4H2421G0DA8/02 offers identical security and memory but targets rigid-board integration, while NT4H2421GSDUD/02 trades configurability for out-of-box readiness - making the former ideal for custom hardware design and the latter optimal for rapid deployment of branded NFC campaigns.
Availability
NT4H2421G0DUD/02Z is available at Aetrix Electronics and suitable for anti-counterfeiting labels, smart packaging systems, and secure IoT onboarding requiring stable component supply, long-term lifecycle support, and traceable sourcing from authorized channels.
Supply support for NT4H2421G0DUD/02Z 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 deep expertise in NFC, RFID, and trusted execution environments for consumer, automotive, and industrial markets.
The NTAG family - including NT4H2421G0DUD/02Z - was designed specifically for high-assurance brand protection, product authentication, and privacy-conscious NFC interactions in mass-market physical goods and documents.
FAQ
What is the primary security function enabled by NT4H2421G0DUD/02Z in anti-counterfeiting applications?
The NT4H2421G0DUD/02Z provides Secure Unique NFC (SUN) message generation on every tap, producing a cryptographic challenge-response tied to the physical tag's presence and internal state. This enables real-time server-side verification that cannot be replicated by cloning static identifiers - a core requirement for authenticating high-value goods where counterfeiters exploit predictable data patterns. The SUN mechanism is integral to NT4H2421G0DUD/02Z's architecture and operates without requiring app installation on iOS 11+ or Android devices.
Does NT4H2421G0DUD/02Z support encrypted communication with NFC readers, and how is it configured?
Yes, NT4H2421G0DUD/02Z supports three communication modes: Plain, CMAC-protected, and Full Enciphered+CMAC. These are configured per file using the ChangeFileSettings command and enforced after successful authentication with one of its five customer-defined AES-128 keys. The default for the proprietary file (EF 03h) is Full mode, ensuring confidentiality of sensitive payloads - a capability built into NT4H2421G0DUD/02Z's ISO/IEC 7816-4-compliant file system and not dependent on external host processing.
How does the 50 pF input capacitance of NT4H2421G0DUD/02Z impact antenna design compared to legacy NFC tags?
The 50 pF typical input capacitance of NT4H2421G0DUD/02Z reduces required external tuning capacitance, enabling smaller loop antennas with fewer turns or narrower traces - critical for embedding into thin labels, bottle caps, or medical packaging. Unlike older tags requiring 10–15 pF external capacitors, NT4H2421G0DUD/02Z achieves optimal 13.56 MHz resonance with minimal external components, preserving read range (up to 10 cm) even in space-constrained mechanical designs.
Can NT4H2421G0DUD/02Z be used without custom key programming, and what are the factory defaults?
Yes, NT4H2421G0DUD/02Z ships with transport keys (16 bytes of 0x00) and default access rights: free read access to CC and NDEF files, and key-restricted access (AppKey 2/3) to the proprietary file. SUN and LRP features are functional out-of-box but require key personalization for production use - NXP explicitly recommends changing all five keys during manufacturing to prevent exploitation of default configurations in deployed NT4H2421G0DUD/02Z units.
What certifications validate the security claims of NT4H2421G0DUD/02Z for regulated applications?
NT4H2421G0DUD/02Z holds Common Criteria EAL4 certification for both hardware and software components, independently validated against ISO/IEC 15408 requirements. This certification covers its AES-128 implementation, LRP wrapper, memory access controls, SUN message generation logic, and resistance to fault injection and side-channel attacks - making it suitable for applications governed by GDPR, HIPAA, or industry-specific anti-counterfeiting mandates where cryptographic assurance is contractually required.
NT4H2421G0DUD/02Z Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- RFID Transponder
- Frequency:
- 13.56MHz
- Standards:
- ISO 14443, ISO 7816-4
- Interface:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -25°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- Wafer
NT4H2421G0DUD/02Z FAQ
1.How can I place an order for NT4H2421G0DUD/02Z through Aetrix?
Please submit a Request for Quotation (RFQ) for NT4H2421G0DUD/02Z 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 NT4H2421G0DUD/02Z reliable?
The price and inventory of NT4H2421G0DUD/02Z are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NT4H2421G0DUD/02Z is usually 5 days.
3.What payment methods are accepted for NT4H2421G0DUD/02Z?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NT4H2421G0DUD/02Z transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NT4H2421G0DUD/02Z?
NT4H2421G0DUD/02Z orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NT4H2421G0DUD/02Z 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 NT4H2421G0DUD/02Z?
For technical support, including NT4H2421G0DUD/02Z datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NT4H2421G0DUD/02Z requirements.
6.How does Aetrix verify that NT4H2421G0DUD/02Z is sourced from the original manufacturer or authorized distributors?
All NT4H2421G0DUD/02Z 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 NT4H2421G0DUD/02Z meets industry standards.
7.What is the process for return or replacement of NT4H2421G0DUD/02Z?
All NT4H2421G0DUD/02Z units undergo pre-shipment inspection (PSI). If there is an issue with NT4H2421G0DUD/02Z, 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 NT4H2421G0DUD/02Z part is unused and in its original packaging.
Return procedure for NT4H2421G0DUD/02Z:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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