NTAG213 / 215 / 216 vs ST25TN512

Choose NTAG213, NTAG215, or NTAG216 if you need higher memory capacity and ISO/IEC 14443 Type A / NFC Forum Type 2 compatibility. The NTAG213 provides 144 bytes of user memory, NTAG215 offers 504 bytes, and NTAG216 delivers 888 bytes, making them suitable for applications requiring URL storage, NDEF messages, or authentication data. All variants operate at 13.56 MHz and include ECC-based originality signatures for anti-counterfeiting, 32-bit password protection, field-programmable read-only locking, and a 7-byte unique UID. The ISO 14443 Type A protocol ensures broad compatibility with most smartphones and NFC readers, particularly for consumer-facing applications like smart posters, product authentication, and loyalty cards. The scalable memory options allow you to select the exact capacity needed without over-specifying. Choose ST25TN512 if your application requires ISO/IEC 15693 / NFC Forum Type 5 protocol compliance and minimal memory footprint is sufficient. With 64 bytes of EEPROM (512 bits), this chip suits applications needing only basic data storage such as simple identification tags, asset tracking, or access control tokens where extended range and anti-collision performance of ISO 15693 are beneficial. It operates at 13.56 MHz with 32-bit password protection and lock bits for basic security. The Type 5 protocol typically offers longer read range compared to Type 2 tags, which can be advantageous in industrial environments or scenarios where users cannot bring devices into close proximity. However, the significantly smaller memory capacity—less than half that of even the smallest NTAG213—limits its use to applications with minimal data requirements.