<h1>Tag Type ISO 14443 3A: The Foundation of Everyday NFC</h1> <p><strong>Tag Type ISO 14443 3A</strong> is a specific implementation standard within the broader ISO/IEC 14443 family, which governs proximity card communication. In my experience working with access control systems, this type of tag has been incredibly reliable for standard door entry and basic identification tasks. Its simplicity is its greatest strength, making it a cornerstone of many NFC applications we encounter daily.</p> <h2>Understanding the Technical Specifications of ISO 14443 3A Tags</h2> <p>My skill in system integration often requires a deep dive into component specs. For <strong>Tag Type ISO 14443 3A</strong>, the technical parameters are well-defined. The standard builds upon Type A modulation, coding, and anti-collision protocols. Here are some typical technical indicators and detailed parameters for a common <strong>ISO 14443 3A</strong> compliant chip:</p> <h3>Detailed Chip Parameters and Dimensions</h3> <ul> <li><strong>Chip Code/Model:</strong> NXP MIFARE Ultralight (Example: MF0ICU1).</li> <li><strong>Communication Protocol:</strong> ISO/IEC 14443-3A (Initialization and Anti-collision).</li> <li><strong>Operating Frequency:</strong> 13.56 MHz.</li> <li><strong>Data Transfer Rate:</strong> 106 kbit/s.</li> <li><strong>Memory:</strong> 512 bits (64 bytes) typically organized into 16 pages.</li> <li><strong>User Memory:</strong> Typically 48 bytes (e.g., pages 04h to 0Fh).</li> <li><strong>Unique Identifier (UID):</strong> 7-byte serial number.</li> <li><strong>Physical Dimensions (Example for a card):</strong> 85.6mm x 54mm x 0.84mm (ID-1 format).</li> <li><strong>Read Range:</strong> Up to approximately 10 cm, depending on the reader.</li> <li><strong>Write Endurance:</strong> 100,000 cycles minimum.</li> <li><strong>Data Retention:</strong> 10 years minimum.</li> </ul> <p><em>Note: These technical parameters are for reference data. For precise specifications, project requirements, or to source compliant components, you need to contact the backend management.</em></p> <h2>Practical and En