NXP Semiconductors MF3DH4201DUF/01V

Overview

MF3DH4201DUF/01V from NXP Semiconductors is a contactless multi-application IC compliant with ISO/IEC 14443A, featuring 4 KB EEPROM, 70 pF input capacitance for small-form-factor card designs, Common Criteria EAL5+ security certification, and support for AES-128 and 3DES cryptographic engines. It serves as the secure core of smart city mobility cards, enabling public transport, e-payment, and access control on a single credential.

For engineers reviewing the MF3DH4201DUF/01V datasheet, MF3DH4201DUF/01V pinout, MF3DH4201DUF/01V application, or MF3DH4201DUF/01V equivalent, key selection considerations include its 70 pF high-input-capacitance variant optimized for thin (75 μm) wafer-based inlays, Transaction MAC file support for backend-verified transactions, backward compatibility with MIFARE DESFire EV1/D40 infrastructure, and MIsmartApp-enabled delegated application management.

Technical Context

The MF3DH4201DUF/01V implements a dual-layer security architecture: hardware-accelerated AES-128 and 3DES cryptographic engines coexist with mutual three-pass authentication and on-chip exception sensors (glitch, voltage, temperature, light). Its flexible file system supports unlimited applications, each with up to 32 files-including Standard Data, Value, Linear/Cyclic Record, Backup Data, and Transaction MAC types-enabling atomic transaction integrity via automatic anti-tear mechanisms.

It operates at 13.56 MHz with RF data rates up to 848 kbit/s, uses ISO/IEC 14443-4 protocol with configurable ATS (supporting up to 128-byte frames), and integrates optional Random ID generation and Proximity Check to mitigate relay attacks. The device is delivered in FFC (film frame carrier) format as a 75 μm-thick sawn wafer die, requiring antenna coupling-not electrical pin connections-for operation.

Key Specifications

Pinout & Package

MF3DH4201DUF/01V is a contactless IC packaged as a bare die on film frame carrier (FFC); it has no electrical pins or solderable terminals. Operation relies entirely on inductive coupling via an external antenna coil - no PCB-level pinout applies. The 75 μm thickness and 70 pF input capacitance are optimized for embedding into thin plastic cards, laminates, or flexible substrates.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar contactless multi-application IC applications.

Compared with MF3D4201DUF/01 and MF3DH4200DA4/01, the MF3DH4201DUF/01V uniquely combines 70 pF input capacitance, 75 μm die thickness, and FFC packaging - making it the only option certified for high-yield lamination into sub-0.5 mm smart cards and wearables without antenna redesign.

Availability

MF3DH4201DUF/01V is available at Aetrix Electronics and suitable for secure public transport ticketing, smart city mobility credentialing, and multi-service access control requiring stable component supply across multi-year production cycles.

Supply support for MF3DH4201DUF/01V 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 company specializing in secure connectivity solutions for automotive, industrial, and identification markets, with leadership in NFC, RFID, and trusted execution technologies.

The MF3DH4201DUF/01V belongs to the MIFARE DESFire EV2 product line - engineered specifically for high-assurance, multi-application contactless systems in smart cities, transit, and digital identity applications.

FAQ

What is the primary function of MF3DH4201DUF/01V in a smart card system?

The MF3DH4201DUF/01V serves as the secure, multi-application contactless IC core of smart cards and inlays. It stores and processes sensitive data - such as transit balances, access credentials, and loyalty points - using hardware-accelerated AES-128 and 3DES cryptography. Its EAL5+ certification, Transaction MAC file capability, and MIsmartApp delegation make MF3DH4201DUF/01V ideal for citizen-facing credentials requiring both flexibility and bank-grade security.

Does MF3DH4201DUF/01V require electrical connections or soldering during integration?

No - MF3DH4201DUF/01V is a contactless IC delivered as a bare die on film frame carrier (FFC) and has no electrical pins. It operates solely via inductive coupling with an external antenna coil embedded in the card substrate. Integration involves laminating the die onto the antenna pattern - no PCB traces, vias, or soldering are involved. The 70 pF input capacitance is specifically tuned for reliable RF performance in thin (75 μm) inlay constructions.

How does MF3DH4201DUF/01V differ from earlier MIFARE DESFire generations?

The MF3DH4201DUF/01V implements the full MIFARE DESFire EV2 feature set: unlimited applications (vs. 28 in EV1), Transaction MAC file, MIsmartApp delegation, Proximity Check against relay attacks, Originality Check for authenticity, and EV2 Secure Messaging based on AES. Unlike MF3ICD40 or MF3Dx2 variants, MF3DH4201DUF/01V also includes 70 pF input capacitance - enabling robust operation in ultra-thin cards where standard 17 pF variants fail.

Can MF3DH4201DUF/01V be used in systems already deployed with MIFARE DESFire EV1 cards?

Yes - MF3DH4201DUF/01V is functionally backward compatible with MIFARE DESFire EV1 and D40. In its default delivery state, it behaves identically to MF3D4201DUF/01, supporting all existing EV1 commands and security modes (including 2TDEA and 3TDEA). New EV2 features like Transaction MAC or MIsmartApp require explicit activation via dedicated commands - allowing seamless infrastructure upgrades without reader replacement.

What security certifications apply to MF3DH4201DUF/01V?

The MF3DH4201DUF/01V holds Common Criteria EAL5+ certification for both hardware and software - the same assurance level required for electronic passports and EMV banking cards. This certification covers its cryptographic engines (AES-128, 3DES), memory protection mechanisms, anti-tamper sensors (voltage, glitch, temperature), and secure boot process. It also complies with ISO/IEC 14443A and supports ISO/IEC 7816-4 APDU structures for interoperability with global PKI and HSM ecosystems.