NXP Semiconductors MF0MOU2101DA8,118

Overview

MF0MOU2101DA8,118 from NXP Semiconductors is a contactless ticket IC in the MIFARE Ultralight C family, designed for secure, low-cost smart ticketing applications. It implements ISO/IEC 14443 Type A RF interface at 13.56 MHz, features 1536-bit EEPROM (including 32-bit OTP and 16-bit counter), 7-byte UID with cascade level 2, and hardware-accelerated 3DES authentication. It is used in public transport tickets where fast (<35 ms) transaction time, field-programmable memory locking, and anti-cloning are required.

For engineers reviewing the MF0MOU2101DA8,118 datasheet, MF0MOU2101DA8,118 pinout, MF0MOU2101DA8,118 application, or MF0MOU2101DA8,118 equivalent, this page delivers verified technical context, exact package mapping to MOA8 (SOT500-4), validated pin functions, real-world use scenarios, and two confirmed alternative parts - all derived from NXP's official Rev. 3.5 product data sheet dated 30 January 2026.

Technical Context

The MF0MOU2101DA8,118 integrates an RF interface compliant with ISO/IEC 14443-2 and -3 Type A, a digital control unit with command interpreter, a 3DES crypto coprocessor, and 1536-bit EEPROM organized in 48 × 32-bit pages. Its antenna interface uses LA/LB terminals with integrated 50 pF resonance capacitance optimized for TFC.0 ticket formats.

It supports true anticollision via 7-byte UID and cascade level 2 selection, executes authenticated read/write operations only after successful 3DES challenge-response, and enforces memory protection through field-programmable per-page and per-block lock bytes (pages 02h and 28h). All lock configurations become active after next REQA or WUPA command.

Key Specifications

Pinout & Package

MF0MOU2101DA8,118 is supplied in the MOA8 plastic leadless module carrier package (SOT500-4), designed for direct integration into thin contactless tickets. It has two antenna connection terminals only - no power or digital I/O pins - as energy and data are fully harvested and exchanged wirelessly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MF0MOU2101DA8,118, MF0MOU2001DA8 offers identical functionality but mismatched capacitance for TFC.0, while MF0ICU2101DUD removes the integrated antenna interface entirely - making both unsuitable as drop-in replacements unless mechanical and RF layout changes are acceptable.

Availability

MF0MOU2101DA8,118 is available at Aetrix Electronics and suitable for public transport ticketing, event access control, and secure campus ID badge programs requiring stable component supply, long-term lifecycle assurance, and certified ISO/IEC 14443-A compliance.

Supply support for MF0MOU2101DA8,118 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, IoT, and identification markets, with core expertise in RFID, NFC, and trusted execution environments.

The MF0MOU2101DA8,118 belongs to NXP's MIFARE Ultralight C product line - engineered specifically for cost-sensitive, high-volume contactless ticketing applications demanding robust security, field-programmable memory protection, and seamless integration into thin-form-factor smart tickets.

FAQ

What is the input capacitance of MF0MOU2101DA8,118 and why does it matter?

The MF0MOU2101DA8,118 has a fixed on-chip input capacitance of 50 pF, explicitly designed for TFC.0 (Edmonson) ticket formats. This eliminates the need for external capacitors and enables reliable resonance with compact, low-inductance antenna geometries typical in thin paper or PET tickets. Using a 16 pF variant (e.g., MF0MOU2001DA8) in a TFC.0 design would degrade coupling efficiency and reduce operating distance.

How does MF0MOU2101DA8,118 implement memory protection?

The MF0MOU2101DA8,118 uses dual-layer memory protection: per-page locking (pages 03h–0Fh) via lock byte 0/1 (page 02h), and 4-page block locking (pages 10h–27h) via lock bytes 2/3 (page 28h). Lock bits are set irreversibly using WRITE commands; once set, they prevent further writes to protected pages. Authentication (3DES) adds read/write access control beyond locking.

Can MF0MOU2101DA8,118 be used without 3DES authentication?

Yes - MF0MOU2101DA8,118 operates in unauthenticated mode by default. Pages 04h–27h are freely readable and writable until AUTH0 is configured to require authentication. Setting AUTH0 = 30h disables memory protection entirely. However, 3DES authentication is mandatory for secure applications like transit fare media to prevent cloning and unauthorized balance manipulation.

What is the purpose of the 16-bit counter in MF0MOU2101DA8,118?

The 16-bit counter in MF0MOU2101DA8,118 (located in page 41h) provides a tamper-evident, monotonically increasing value used for usage tracking - e.g., counting rides on a transit pass. It increments automatically on each successful READ or WRITE command targeting its page and can be locked permanently to prevent reset or overwrite, ensuring auditability.

Is MF0MOU2101DA8,118 pin-compatible with other MIFARE Ultralight variants?

MF0MOU2101DA8,118 shares the same MOA8 (SOT500-4) package and LA/LB pinout with all MF0MOU2x01DA8 variants, including MF0MOU2001DA8. Mechanical and electrical pin compatibility is guaranteed within the MOA8 family. However, functional compatibility depends on input capacitance (50 pF vs. 16 pF) and associated antenna tuning - swapping variants without antenna redesign will impair performance.