NTAG 213F / 216F vs ST25TV64K

Choose NTAG 213F / 216F if you need ISO/IEC 14443 Type A protocol compatibility, NFC Forum Type 2 Tag compliance, and require a field detection pin with open-drain output for triggering external circuits. The NTAG213F provides 144 bytes user memory while NTAG216F offers 888 bytes user memory, suitable for applications like smart posters, product labels, and consumer engagement tags. Both variants include ECC-based originality signatures for anti-counterfeiting, 32-bit password protection with configurable access control, and field-programmable read-only locking on a per-page basis (45 or 231 pages of 4 bytes each). The field detection pin is particularly valuable when you need to wake microcontrollers or activate LEDs when an NFC reader is present, enabling battery-assisted passive tags or visual user feedback systems. Choose ST25TV64K if you require significantly larger memory capacity at 8192 bytes (64 Kbit) of EEPROM, which is approximately 9 times more than the NTAG216F and 57 times more than the NTAG213F. This chip operates on ISO/IEC 15693 protocol as an NFC Forum Type 5 tag, offering longer read range capabilities typical of ISO 15693 devices compared to ISO 14443A. The ST25TV64K includes tamper detection loop functionality for physical security applications where detecting enclosure opening or product manipulation is critical, plus energy harvesting capabilities that can power external sensors or circuits from the RF field. The 32-bit password protection and originality signature support secure product authentication scenarios. This chip is ideal for supply chain tracking, pharmaceutical authentication, high-value asset management, or any application requiring substantial data storage with physical tamper evidence.