NXP Semiconductors MF0ICU2001DUF,005

Overview

MF0ICU2001DUF,005 from NXP Semiconductors is a contactless ticket IC compliant with ISO/IEC 14443 Type A, featuring 1536-bit EEPROM, 7-byte UID with cascade level 2, 3DES authentication, 16 pF input capacitance, and operation at 13.56 MHz - deployed in public transport smart tickets and event access cards.

For engineers reviewing the MF0ICU2001DUF,005 datasheet, MF0ICU2001DUF,005 pinout, MF0ICU2001DUF,005 application, or MF0ICU2001DUF,005 equivalent, key selection criteria include contactless memory security (OTP, page/block locking), RF interface timing (<35 ms typical transaction), UID uniqueness for anticollision, and TFC.0/TFC.1 ticket format compatibility.

Technical Context

The MF0ICU2001DUF,005 integrates an RF interface with rectifier, clock regenerator, and power-on reset; a digital control unit handling ISO/IEC 14443-A command interpretation; a dedicated 3DES crypto coprocessor; and EEPROM organized in 48 pages of 32 bits each. It supports true anticollision via UID-based cascade-level-2 selection and executes authenticated READ/WRITE only after successful 3DES challenge-response.

Memory access is governed by field-programmable lock bytes (pages 02h and 28h) enabling irreversible per-page or 4-page-block read-only locking, while OTP (page 03h), 16-bit counter (page 41h), and dual 3DES keys (pages 44h–47h) are secured under configurable AUTH0/AUTH1 protection thresholds.

Key Specifications

Pinout & Package

Bare die package: 75 μm thickness, laser-diced on 8-inch wafer, mounted on film frame carrier; no external pins - connects directly to antenna coil via LA/LB terminals.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MF0ICU2001DUF,005, MF0ICU1001DUF sacrifices authentication and memory flexibility for lower cost, while MF0UL2101DUF trades input capacitance for mechanical fit - neither offers drop-in replacement due to differing RF tuning and security capabilities.

Availability

MF0ICU2001DUF,005 is available at Aetrix Electronics and suitable for public transport ticketing, event access control, and secure campus ID systems requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for MF0ICU2001DUF,005 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 identification markets.

The MF0ICU2001DUF,005 belongs to the MIFARE Ultralight C product line, engineered specifically for high-volume, cost-sensitive contactless ticketing applications demanding cryptographic security, field-programmable memory protection, and ISO/IEC 14443-A interoperability.

FAQ

What is the primary function of the MF0ICU2001DUF,005 in a contactless system?

The MF0ICU2001DUF,005 serves as a secure contactless ticket IC that stores and protects credential data using 1536-bit EEPROM, 3DES authentication, and field-programmable memory locking. It operates passively via RF coupling at 13.56 MHz and is designed for use in smart tickets where anticollision, UID uniqueness, and cryptographic integrity are mandatory - such as metro fare cards and event wristbands. The MF0ICU2001DUF,005 does not require external power or components beyond its antenna connections LA and LB.

Does the MF0ICU2001DUF,005 support true anticollision, and how is it implemented?

Yes, the MF0ICU2001DUF,005 implements true anticollision per ISO/IEC 14443-3 using its factory-programmed 7-byte UID and cascade-level-2 selection protocol. When multiple MF0ICU2001DUF,005 devices are present in a reader's field, the PCD resolves UIDs in two stages - first 3 bytes (READY1), then remaining 4 bytes (READY2) - ensuring deterministic, interference-free selection. Each device responds only when individually addressed, enabling reliable operation in dense environments like transit turnstiles. The MF0ICU2001DUF,005 does not rely on timing-based or probabilistic methods.

How is memory protection configured on the MF0ICU2001DUF,005?

Memory protection on the MF0ICU2001DUF,005 is enforced through two mechanisms: (1) Field-programmable lock bytes in pages 02h (for pages 03h–0Fh) and 28h (for pages 10h–27h), enabling irreversible per-page or 4-page-block read-only locking; and (2) 3DES authentication with AUTH0/AUTH1 configuration bytes (pages 2Ah/2Bh) defining the lowest page address requiring authentication for read/write access. Lock bits are set via OR-based WRITE commands and cannot be cleared - ensuring tamper-resistant personalization. The MF0ICU2001DUF,005 enforces these protections without firmware intervention.

What antenna design considerations apply to the MF0ICU2001DUF,005?

The MF0ICU2001DUF,005 requires direct connection to a tuned loop antenna via LA and LB terminals, leveraging its internal 16 pF resonance capacitor to match EN 753-2 TFC.0 and TFC.1 ticket formats. Antenna inductance must be selected so that the LC tank resonates near 13.56 MHz - typically 0.8–1.2 μH for standard TFC.1 layouts. No external capacitors are needed. Operating distance up to 100 mm depends on antenna geometry, reader field strength, and alignment; mismatched inductance causes detuning, reduced coupling efficiency, and failed transactions. The MF0ICU2001DUF,005 does not support external tuning components.

Can the MF0ICU2001DUF,005 be used in place of MF0ICU1, and what are the key compatibility differences?

The MF0ICU2001DUF,005 maintains backward compatibility with MF0ICU1 for the first 512 bits (pages 00h–0Fh), including UID, lock bytes, and OTP functionality. However, it extends memory to 1536 bits, adds 3DES authentication, 16-bit counter, and enhanced locking granularity - features absent in MF0ICU1. While basic READ/WRITE commands remain compatible, 3DES-related commands (AUTHENTICATE, etc.) and new memory regions (pages 28h–2Fh) are exclusive to MF0ICU2001DUF,005. Migration requires updating personalization firmware and verifying antenna resonance - the MF0ICU2001DUF,005 is not a drop-in replacement without system-level validation.