NXP Semiconductors MF1S5001XDUD2/V1A

Overview

MF1S5001XDUD2/V1 from NXP Semiconductors is a contactless smart card IC compliant with ISO/IEC 14443 Type A, featuring 1 kB EEPROM organized in 16 sectors, 7-byte UID, 13.56 MHz operating frequency, and CRYPTO1-based mutual three-pass authentication. It enables sub-100 ms ticketing transactions in public transport systems.

For engineers reviewing the MF1S5001XDUD2/V1 datasheet, MF1S5001XDUD2/V1 pinout, MF1S5001XDUD2/V1 application, or MF1S5001XDUD2/V1 equivalent, key selection considerations include UID length (7-byte), wafer format (12-inch FFC bump), EEPROM access control per sector, anticollision support for multi-card environments, and compatibility with MIFARE Classic EV1 infrastructure.

Technical Context

The MF1S5001XDUD2/V1 implements a fully integrated RF interface per ISO/IEC 14443A, including rectifier, voltage regulator, clock regenerator, and Power-On Reset - requiring no external components beyond an antenna coil. Its digital control unit handles anticollision, sector-based authentication, and value-block arithmetic (increment/decrement/transfer).

Memory is partitioned into 16 sectors, each with three data blocks and one trailer block containing two programmable keys (A/B) and access bits. Authentication uses the proprietary CRYPTO1 stream cipher, and all memory operations require prior successful authentication with either key A or B per sector configuration.

Key Specifications

Pinout & Package

MF1S5001XDUD2/V1 is supplied as a bumped die on 12-inch wafer (120 μm thickness, film frame carrier), with Au bumps and SECS-II electronic die marking. It has no conventional pins; electrical connection is made exclusively via two antenna terminals (LA and LB) bonded to an external planar coil.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar contactless smart card IC applications.

Compared with MF1S5001XDUD2/V1, MF1S5001XDUD/V1 offers identical electrical and functional behavior but differs in wafer diameter - impacting supply chain scalability - while MF1S5031XDUD2/V1 trades UID uniqueness for lower cost and reduced anticollision robustness, limiting suitability for high-density reader fields.

Availability

MF1S5001XDUD2/V1 is available at Aetrix Electronics and suitable for public transport ticketing, physical access control, and electronic toll collection requiring stable component supply and long-term lifecycle assurance.

Supply support for MF1S5001XDUD2/V1 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 consumer applications, with leadership in RFID and NFC technologies.

The MF1S5001XDUD2/V1 belongs to the MIFARE Classic EV1 family, designed specifically for mainstream contactless smart card applications demanding proven security, fast transaction times, and broad reader interoperability in mass-transit and access management systems.

FAQ

What is the primary application domain for the MF1S5001XDUD2/V1?

The MF1S5001XDUD2/V1 is engineered for contactless smart card systems requiring ISO/IEC 14443A compliance, including public transport ticketing, physical access control, and electronic toll collection. Its 7-byte UID, sub-100 ms transaction time, and CRYPTO1 authentication make it ideal for high-volume, security-conscious deployments where interoperability with legacy MIFARE infrastructure is essential. MF1S5001XDUD2/V1 delivers deterministic anticollision and sector-level key management without external components.

Does the MF1S5001XDUD2/V1 support both key A and key B authentication?

Yes, the MF1S5001XDUD2/V1 supports mutual three-pass authentication using either key A or key B per sector, as defined in the sector trailer. Each of the 16 sectors contains independently configurable access bits that determine whether key A, key B, or both may be used for read, write, or value operations. This enables flexible multi-application architectures - for example, key A for system administration and key B for end-user balance updates - all enforced by hardware-level logic within the MF1S5001XDUD2/V1.

How is memory organized in the MF1S5001XDUD2/V1?

The MF1S5001XDUD2/V1 contains 1 kB of EEPROM organized into 16 sectors, each comprising four 16-byte blocks. Blocks 0–2 in each sector are user data blocks (or value blocks), while block 3 is the sector trailer holding keys A/B and access condition bits. Sector 0's block 0 is the manufacturer block (read-only, pre-programmed). Access to each block is governed by sector-specific keys and access bits stored in the trailer - a structure that enables granular permission control without firmware intervention. MF1S5001XDUD2/V1 enforces this layout in hardware.

What package form does the MF1S5001XDUD2/V1 ship in?

The MF1S5001XDUD2/V1 is supplied as a bumped die on a 12-inch silicon wafer, with 120 μm thickness, mounted on a film frame carrier and marked per SECS-II format. It features gold bumps for flip-chip bonding and includes a factory-programmed 7-byte UID. This bare-die format is intended for integration into contactless modules (e.g., MOA4/MOA8) or direct embedding into smart cards - not for PCB mounting. MF1S5001XDUD2/V1 has no leads or encapsulation; its only electrical interfaces are LA and LB antenna terminals.

Is the MF1S5001XDUD2/V1 compatible with existing MIFARE Classic readers?

Yes, the MF1S5001XDUD2/V1 is fully backward-compatible with all MIFARE Classic infrastructure, including legacy readers certified for MIFARE Classic 1K. It implements the same command set (e.g., 60h/61h authentication, 30h read, A0h write), ATQA/SAK responses, and CRYPTO1 cipher as earlier generations. The 7-byte UID ensures seamless integration into systems using ISO/IEC 14443-3 cascade level 2 anticollision - meaning no reader firmware update or configuration change is needed to deploy MF1S5001XDUD2/V1 in place of prior MIFARE Classic 1K devices.