NXP Semiconductors MF3DH4201DUD/01V

Overview

MF3DH4201DUD/01V from NXP Semiconductors is a contactless multi-application IC compliant with ISO/IEC 14443A, featuring 4 KB EEPROM, 70 pF input capacitance, 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 concurrent public transport, e-payment, and access control on a single credential.

For engineers reviewing the MF3DH4201DUD/01V datasheet, MF3DH4201DUD/01V pinout, MF3DH4201DUD/01V application, or MF3DH4201DUD/01V equivalent, key selection considerations include its high-input-capacitance (70 pF) wafer form factor for thin card designs, Transaction MAC file support for backend-verified transactions, MIsmartApp delegation capability, Proximity Check against relay attacks, and backward compatibility with MIFARE DESFire EV1 and D40 systems.

Technical Context

The MF3DH4201DUD/01V implements a dual-layer security architecture: mutual three-pass authentication at PICC level and application-level cryptographic isolation using up to 14 keys per application. Its on-chip backup management system enforces transaction-oriented atomicity across file updates, while the Virtual Card Architecture enables privacy-preserving card selection in multi-VC environments.

It supports four secure messaging modes-D40 Native, EV1, and two EV2 variants-with EV2 Secure Messaging (AES-based) mandated for new deployments. The RF interface operates at 13.56 MHz with data rates up to 848 kbit/s, configurable ATS supporting up to 128-byte frames (256 bytes for larger memory variants), and optional Random ID generation to prevent tracking.

Key Specifications

Pinout & Package

MF3DH4201DUD/01V is supplied in FFC (Film Frame Carrier) package: 8-inch wafer, sawn, 120 μm thickness. As a contactless IC, it has no electrical pins; it interfaces via an integrated antenna coil coupled to an external reader's magnetic field. Terminal connections are not applicable - power and data are delivered wirelessly through inductive coupling at 13.56 MHz.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MF3DH4201DUD/01V, MF3D4201DUD/01 trades form-factor adaptability for broader antenna design tolerance, while MF3DH8201DUD/01 extends memory headroom without altering RF integration effort - making MF3DH4201DUD/01V the optimal balance of compactness, security, and functional capacity for mid-tier smart city deployments.

Availability

MF3DH4201DUD/01V is available at Aetrix Electronics and suitable for secure public transport ticketing, micro-payment systems, and smart campus access requiring stable component supply, long-term lifecycle assurance, and certified cryptographic integrity.

Supply support for MF3DH4201DUD/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 contactless IC technology since the introduction of MIFARE.

The MF3DH4201DUD/01V belongs to the MIFARE DESFire EV2 product line, engineered specifically for high-assurance, multi-service contactless credentialing in smart cities, transportation, and secure access - emphasizing EAL5+ certification, transaction integrity, and seamless ecosystem interoperability.

FAQ

What security certifications does the MF3DH4201DUD/01V hold?

The MF3DH4201DUD/01V is certified to Common Criteria EAL5+ for both hardware and software, matching the assurance level required for banking cards and electronic passports. This certification validates its resistance to side-channel attacks, fault injection, and logical exploitation. The MF3DH4201DUD/01V also implements hardware-based AES-128 and 3DES cryptographic engines, mutual three-pass authentication, Proximity Check, and Originality Check - all contributing to its certified security posture.

How does the MF3DH4201DUD/01V differ from earlier MIFARE DESFire generations?

The MF3DH4201DUD/01V is the third-generation MIFARE DESFire EV2 IC, introducing features absent in EV1 and D40 - including Transaction MAC files, MIsmartApp delegation, Multiple Key Sets with rolling, Virtual Card Architecture, Proximity Check, and Originality Check. Unlike MF3D4201DUD/01 (17 pF variant), the MF3DH4201DUD/01V uses 70 pF input capacitance for compact antenna integration, and unlike D40/EV1, it supports unlimited applications and EV2 Secure Messaging as the recommended protocol for new designs.

What is the purpose of the 70 pF input capacitance in the MF3DH4201DUD/01V?

The 70 pF input capacitance in the MF3DH4201DUD/01V enables reliable RF coupling in space-constrained antenna designs - such as thin PET cards, paper tickets, or wearable form factors - where traditional 17 pF variants require larger loop areas. This higher capacitance lowers the resonant frequency impedance mismatch, allowing efficient energy harvesting and data transfer even with miniaturized coils. It directly supports the MF3DH4201DUD/01V's target use cases in smart city mobility and flexible credentialing.

Can the MF3DH4201DUD/01V be used in systems designed for MIFARE DESFire EV1?

Yes, the MF3DH4201DUD/01V is functionally backward compatible with MIFARE DESFire EV1 and D40 systems in its default delivery configuration. It supports all EV1 commands, ISO/IEC 7816-4 APDUs, and legacy secure messaging modes (D40 Native, EV1). However, new features like Transaction MAC, MIsmartApp, and EV2 Secure Messaging require explicit activation via dedicated commands - ensuring seamless integration into existing infrastructures without hardware or firmware changes.

What file types does the MF3DH4201DUD/01V support, and how are they applied?

The MF3DH4201DUD/01V supports six file types: Standard Data, Backup Data, Value, Linear Record, Cyclic Record, and Transaction MAC. Each application can contain up to 32 files. Value files enable secure balance storage with anti-tear protection; Linear/Cyclic Record files log sequential events; Transaction MAC files generate cryptographically signed transaction proofs. File sizes are defined at creation (except Transaction MAC), and backup mechanisms ensure atomic updates - critical for fare calculation, access logging, and payment integrity in the MF3DH4201DUD/01V.