{"license":"Free for any use with attribution link to rfid-datasheet.com","citation":"RFID-Datasheet.com Chip Database — Roxtron","source":"https://rfid-datasheet.com/chip/ntag-5","methodology":"https://rfid-datasheet.com/methodology","data_notes":"Includes automated enrichment. Null means unknown; last_checked is link availability, not technical review. Manufacturer documents govern specifications.","generated_at":"2026-10-28T10:40:14.604Z","chip":{"id":"321c1c34-5b6c-429e-9556-c4fa1867f512","slug":"ntag-5","name":"NTAG 5","manufacturer":"NXP","frequency_category":"NFC","short_description":"NFC Forum Type 5 tag with enhanced functionality including I²C bridge for connected devices","manufacturer_url":"https://www.nxp.com/products/rfid-nfc/nfc-hf/ntag-5-link:NTAG_5_LINK","frequency":null,"protocol":null,"memory":null,"interface":null,"temp_range":null,"form_factor":null,"security":null,"use_cases":["industrial-iot","asset-tracking","nfc-marketing"],"engineering_brief":null,"enriched":false,"url_status":"ok","link_status":"invalid","last_checked":"2026-10-28T03:31:34.317+00:00","last_status_code":404,"last_content_type":"text/html","created_at":"2026-10-25T03:00:40.617052+00:00","manufacturer_id":"6daaf1cc-d0e6-40c7-aba0-a08b4c3493fe","chip_type":"tag_ic","dual_interface":true,"is_family_hub":false,"meta_description":"NXP NTAG 5 is an NFC Forum Type 5 tag IC with I²C bridge, enabling connected devices to communicate via NFC. Supports enhanced functionality for industrial IoT and smart sensing applications.","faq":null,"standards":["nfc-forum-type-5","iso-15693"],"alternatives":["579306e6-5586-4abb-925e-5dd2fcf140de","47b81e3f-ebcb-439f-9668-e932ea29ad97","6d855bf0-6725-4a7f-8db5-d132ead2b6cb","1c458247-2296-4087-9df9-9a68bed667f5","8a96cd0b-6895-472f-9c61-557c90358381","503ef72a-57f7-4d98-ae72-d654824fb4fe","4191c449-4d3a-4e71-bc62-52f78fbdc2d0","6c85f338-24af-4b65-9ac1-0f852c5e1453"],"no_direct_competitor":false,"long_form_html":{"deployments":"<p>Potential application considerations based on the NTAG 5's feature set:</p><ul><li><strong><a href=\"/applications/industrial-iot\">Industrial IoT</a>:</strong> The I²C bridge enables potential use as a configuration and maintenance interface for sensors and actuators in industrial environments, where NFC can provision devices without physical connectors or direct network access.</li><li><strong><a href=\"/applications/asset-tracking\">Asset Tracking</a>:</strong> Potential for dynamic tag applications where the connected host updates status information (location, maintenance state, sensor readings) into NFC-accessible memory for periodic RF readout.</li><li><strong><a href=\"/applications/nfc-marketing\">NFC Marketing</a>:</strong> Potential for interactive product experiences where a smartphone NFC interaction triggers or configures behavior in a connected device via the I²C interface.</li></ul><p>The NTAG 5's tamper detection and GPIO capabilities suggest potential for security-conscious applications requiring physical integrity verification, though specific implementation requirements would need validation against datasheet electrical characteristics.</p>","buying_guide":"<p>Questions to verify with your supplier:</p><ul><li>Exact part number and variant (NTAG 5 base, NTAG 5 Link, or other specific derivative), as I²C bridge capabilities and memory sizes vary by product version</li><li>Datasheet and application note revision dates, particularly for I²C bridge protocol documentation which has evolved across releases</li><li>Tape and reel or tray packaging specifications if automated assembly is planned</li><li>Recommended antenna reference designs or evaluation board availability for prototyping the I²C bridge functionality</li><li>Tamper detection pin electrical characteristics and compatibility with your mechanical switch or trace design</li><li>I²C interface voltage level support (1.8V, 3.3V, 5V tolerance) and clock speed limitations</li><li>Samples for RF performance validation with your target reader infrastructure, particularly if relying on NFC Forum Type 5 phone compatibility</li><li>Prototyping support for the dual-interface (RF + I²C) programming model</li></ul>","how_it_works":"<p>The <strong>NXP NTAG 5</strong> operates as an <a href=\"/standards/nfc-forum-type-5\">NFC Forum Type 5</a> tag compliant with <a href=\"/standards/iso-15693\">ISO/IEC 15693</a>, operating at the HF frequency of 13.56 MHz. Unlike simpler NTAG variants, the NTAG 5 implements an enhanced architecture with an I²C bridge interface that enables bidirectional communication between the RF NFC interface and a connected host microcontroller or device.</p><p>The physical layer uses the ISO/IEC 15693 modulation scheme: reader-to-tag communication employs ASK 10% or 100% modulation with 1/4 or 1/256 pulse position encoding, while tag-to-reader communication uses ASK or FSK subcarrier load modulation at 423.75 kHz or 484.28 kHz. The anti-collision mechanism follows the ISO/IEC 15693 inventory sequence with 64-bit unique identifier (UID) support, enabling multiple tags in the field to be resolved individually.</p><p>The memory architecture extends beyond passive storage to support a tamper detection function and GPIO capabilities through the I²C interface. The NTAG 5 Link variant specifically emphasizes this I²C bridge functionality, allowing the NFC channel to serve as a configuration and data pipeline for battery-powered or connected devices. Memory is organized in blocks accessible via standard ISO/IEC 15693 commands (READ SINGLE BLOCK, WRITE SINGLE BLOCK, READ MULTIPLE BLOCKS) with additional proprietary commands for I²C bridge management and configuration register access.</p>","programming_notes":"<p><strong>Reader Compatibility:</strong> The NTAG 5 requires an ISO/IEC 15693-capable reader; NFC Forum Type 5 phone compatibility is supported but may vary by device generation and OS version. I²C bridge functionality requires host firmware implementation on the connected side.</p><p><strong>Command Overview:</strong> Core memory operations use standard ISO/IEC 15693 commands:</p><ul><li><code>INVENTORY</code> — UID retrieval via anti-collision</li><li><code>READ SINGLE BLOCK</code> / <code>READ MULTIPLE BLOCKS</code> — memory readout</li><li><code>WRITE SINGLE BLOCK</code> — memory programming</li><li><code>GET SYSTEM INFORMATION</code> — metadata retrieval (DSFID, AFI, memory size, IC reference)</li></ul><p><strong>I²C Bridge Commands:</strong> Proprietary command extensions manage I²C bridge configuration, including pass-through mode setup, GPIO control, and event/interrupt handling. Refer to NXP documentation for exact command codes and register map; command naming may vary by document revision.</p><p><strong>Security Notes:</strong> The NTAG 5 includes tamper detection functionality. Tamper event logging requires correct configuration of associated registers. No authentication command is native to baseline ISO/IEC 15693; any security extensions would be NXP-proprietary and must be verified against the specific part number's datasheet.</p><p><strong>Memory Layout Gotchas:</strong> Configuration registers and user memory share the addressable space; critical system blocks may be read-only or require specific access conditions. Block size is typically 4 bytes but confirm for exact variant. The I²C interface and RF interface may contend for memory access; arbitration rules must be understood for concurrent operation.</p>"},"og_image_url":"https://rfid-datasheet.com/og/chip/ntag-5","canonical_url":"https://rfid-datasheet.com/chip/ntag-5"}}