<h1>NXP Mifare Ultralight Ultralight: A Comprehensive Overview</h1> <p>NXP Mifare Ultralight Ultralight is a foundational contactless IC technology that has become ubiquitous in applications requiring fast, simple, and cost-effective data exchange. From my personal experience working on access control systems, the reliability and simplicity of these chips in low-security environments are truly impressive. I've found that understanding their technical limits is a skill that saves significant development time.</p> <h2>Technical Specifications and Detailed Parameters</h2> <p>In my view, the true value of the Mifare Ultralight series lies in its optimized balance of features and cost. For a practical, entertainment-focused application, I once prototyped a concert wristband using these chips. Attendees could tap their wristbands at interactive kiosks to unlock exclusive digital content or enter raffles, greatly enhancing the fan experience. This was made possible by <strong>TIANJUN</strong> providing high-quality, pre-programmed tags and reader modules, which accelerated our deployment timeline.</p> <h3>Core Product Data Sheet</h3> <p>The following technical parameters are for reference. For precise specifications for your project, please contact our backend management team.</p> <h4>Mifare Ultralight EV1 (MF0ULx1) Key Metrics:</h4> <ul> <li><strong>Memory:</strong> 512 bits (64 bytes) of user EEPROM, organized in 16 pages of 4 bytes each.</li> <li><strong>Communication:</strong> ISO/IEC 14443 Type A, 106 kbit/s.</li> <li><strong>Chip Code:</strong> NXP MF0UL1101 / MF0UL2101.</li> <li><strong>Detailed Dimensions (Chip):</strong> The die size is approximately 0.76 mm² (typical). Module/antenna dimensions vary by inlay manufacturer; a common inlay format is CR80 (85.6 x 54 mm).</li> <li><strong>Functionality:</strong> Supports a 7-byte UID, 32-bit OTP (One-Time Programmable) area, and a 3-pass mutual authentication.</li> </ul> <h2>Applications and Broader Implications</h2> <p>A compelling case for its use is in supporting