<h1>MIFARE Ultralight C: A Comprehensive Overview</h1> <p><strong>MIFARE Ultralight C</strong> represents a significant evolution in contactless smart card technology, particularly for applications requiring a balance of security, cost-effectiveness, and ease of use. From my personal experience working on access control systems for small to medium-sized enterprises, the transition from basic read/write cards to the <strong>MIFARE Ultralight C</strong> was a game-changer. The enhanced security features provided the peace of mind that simpler cards couldn't offer, while keeping the project budget in check. This firsthand encounter solidified my view that it's a cornerstone product for secure, low-cost ticketing and data logging.</p> <h2>Technical Specifications and Detailed Parameters</h2> <p>Understanding the hardware is crucial. The <strong>MIFARE Ultralight C</strong> chip is built on a robust architecture. Here are its key technical indicators and detailed parameters:</p> <h3>Memory Structure & Chip Details</h3> <ul> <li><strong>Chip Code/Type:</strong> Typically NXP MF0ICU2.</li> <li><strong>Memory:</strong> 192 bytes of EEPROM, organized into 48 pages of 4 bytes each.</li> <li><strong>User Memory:</strong> 144 bytes (Page 4 to Page 39).</li> <li><strong>Unique Identifier (UID):</strong> 7-byte serial number stored in Pages 0-2.</li> <li><strong>Communication:</strong> ISO/IEC 14443 Type A, 106 kbps data rate.</li> <li><strong>Operating Frequency:</strong> 13.56 MHz.</li> <li><strong>Operating Distance:</strong> Up to 100 mm (depending on the reader antenna).</li> <li><strong>Data Retention:</strong> Minimum of 10 years.</li> <li><strong>Write Endurance:</strong> 100,000 cycles minimum.</li> </ul> <p><em>Note: These technical parameters are for reference. For precise specifications and chip sourcing, you must contact the backend administration.</em></p> <h3>Security Features: The "C" Advantage</h3> <p>The standout skill of the <strong>MIFARE Ultralight C</strong> lies in its security. Unlike its predecessor, it integrates a mutual three-pass authentication using the <strong>MIFARE Ultralight C</strong> crypto algorithm. My opinion is that this 3DES-based authentication is its most critical feature, effectively preven