NXP Semiconductors MF0UL2101DA8,118

Overview

MF0UL2101DA8,118 from NXP Semiconductors is a contactless ticket IC compliant with ISO/IEC 14443 Type A, featuring 1024-bit user EEPROM, 17 pF on-chip resonance capacitance, and MOA8 plastic leadless module packaging (SOT500-4). It serves as a secure, low-cost smart ticket solution for public transit fare collection systems requiring fast <35 ms transaction times and true anticollision support.

For engineers reviewing the MF0UL2101DA8,118 datasheet, MF0UL2101DA8,118 pinout, MF0UL2101DA8,118 application, or MF0UL2101DA8,118 equivalent, this page delivers verified technical context, memory architecture details, security features including 32-bit password protection and ECC-based originality signature, and real-world deployment guidance for transit and event ticketing systems.

Technical Context

The MF0UL2101DA8,118 integrates a 1312-bit EEPROM organized in 41 pages of 4 bytes each, with 1024 bits allocated to user read/write memory, 3 independent 24-bit one-way counters, and a 32-bit OTP area. Its RF interface implements ISO/IEC 14443 Type A modulation/demodulation, rectification, clock regeneration, and Power-On Reset - all powered solely by the reader's 13.56 MHz field.

It supports cascade-level 2 anticollision selection, password-authenticated memory access via PWD_AUTH command, and field-programmable per-page or per-two-pages locking. Memory operations occur exclusively in the ACTIVE or AUTHENTICATED state, with HALT/IDLE wait states enabling multi-card field management.

Key Specifications

Pinout & Package

MF0UL2101DA8,118 is housed in the MOA8 plastic leadless module package (SOT500-4), designed for embedding into paper or PET-based tickets. The device connects directly to an antenna coil with no external components required.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MF0UL2101DUD and MF0ULH2101DA8, the MF0UL2101DA8,118 uniquely balances ready-to-use MOA8 packaging, 17 pF resonance for standard ISO ticket antennas, and full 1024-bit user memory - making it the optimal choice for volume production of transit and event tickets without antenna redesign.

Availability

MF0UL2101DA8,118 is available at Aetrix Electronics and suitable for public transportation fare collection, event access control, and loyalty program tokenization requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for MF0UL2101DA8,118 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, with headquarters in Eindhoven, Netherlands.

The MF0UL2101DA8,118 belongs to the MIFARE Ultralight EV1 product line - engineered specifically for cost-sensitive, high-volume contactless ticketing applications demanding robustness, ISO/IEC 14443 compliance, and field-deployable security primitives.

FAQ

What is the primary function of the MF0UL2101DA8,118 in a contactless system?

The MF0UL2101DA8,118 functions as a secure, ISO/IEC 14443 Type A-compliant contactless ticket IC. It stores and protects user data such as fare balance, access rights, or loyalty points using its 1024-bit EEPROM, 32-bit password, and ECC-based originality signature. The MF0UL2101DA8,118 derives power and communicates entirely via the reader's 13.56 MHz RF field - requiring no battery or external components.

Does the MF0UL2101DA8,118 support true anticollision, and how does it operate?

Yes, the MF0UL2101DA8,118 implements true ISO/IEC 14443-3 anticollision using cascade-level 1 and level 2 protocols. It allows multiple MF0UL2101DA8,118 devices to be present simultaneously in a reader field, with the PCD selecting each individually via UID exchange. This ensures reliable transaction execution without interference - critical for crowded transit gates or event entrances where multiple tickets may be presented at once.

How is memory protection implemented on the MF0UL2101DA8,118?

Memory protection on the MF0UL2101DA8,118 includes three layers: (1) per-page lock bits for pages 03h–0Fh, (2) per-two-pages lock bits for extended memory (pages 10h–28h), and (3) 32-bit password authentication enforced from a configurable AUTH0 page address. Once lock bits are set, writes to protected pages are permanently blocked. The MF0UL2101DA8,118 also supports anti-tearing for lock bit and OTP updates to prevent corruption during power loss.

What antenna design considerations apply to the MF0UL2101DA8,118?

The MF0UL2101DA8,118 is optimized for 17 pF input capacitance and supports both TFC.0 (Edmondson) and TFC.1 (ISO) ticket formats. Its LA/LB terminals connect directly to a printed loop antenna - no external capacitors or matching networks are required. Antenna geometry must be tuned to resonate near 13.56 MHz with the 17 pF load; deviations reduce operating distance and reliability. Reference designs for MOA8 modules are documented in NXP AN11022.

Is the MF0UL2101DA8,118 backward compatible with earlier MIFARE Ultralight devices?

Yes, the MF0UL2101DA8,118 is fully backward compatible with MF0ICU1 and earlier MIFARE Ultralight ICs at the command and memory map level for the first 512 bits. It retains identical READ, WRITE, and anticollision behavior for legacy systems while adding enhanced features - including extended memory (1024-bit user space), additional counters, and stronger security primitives - without requiring reader firmware updates.