{"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/st25tvxxxk","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":"2026-10-31T14:27:02.096Z","chip":{"id":"fdd1c2ae-c23e-4759-9216-82961564889c","slug":"st25tvxxxk","name":"ST25TVxxxK","manufacturer":"STMicroelectronics","frequency_category":"HF 13.56 MHz","short_description":"Type 5 NFC/RFID tag ICs with Kapton antenna support and enhanced RF performance for industrial and consumer applications","manufacturer_url":"https://www.st.com/en/nfc/st25tv04k.html","frequency":null,"protocol":null,"memory":null,"interface":null,"temp_range":null,"form_factor":null,"security":null,"use_cases":["industrial-iot","asset-tracking","supply-chain"],"engineering_brief":null,"enriched":false,"url_status":"ok","link_status":"invalid","last_checked":"2026-10-31T03:31:33.781+00:00","last_status_code":520,"last_content_type":"text/plain; charset=UTF-8","created_at":"2026-10-31T03:01:41.835487+00:00","manufacturer_id":"0c208bcb-2193-4014-9a7f-783bb32a8c9e","chip_type":"tag_ic","dual_interface":false,"is_family_hub":false,"meta_description":"ST25TVxxxK NFC Forum Type 5 tag ICs operate at 13.56 MHz with ISO 15693 protocol and 2-64 Kbit EEPROM memory. Feature enhanced RF sensitivity, Kapton antenna support for industrial harsh environments and fast inventory round.","faq":[{"a":"The ST25TVxxxK is a family of NFC/RFID tag ICs from STMicroelectronics operating at 13.56 MHz. These are NFC Forum Type 5 tag ICs.","q":"What is the ST25TVxxxK and what frequency does it use?"},{"a":"The ST25TVxxxK supports the ISO 15693 protocol as part of its NFC Forum Type 5 compliance.","q":"What protocol does the ST25TVxxxK support?"},{"a":"The ST25TVxxxK features enhanced RF performance and Kapton antenna support, making it suitable for industrial and consumer applications where robust RF communication is required.","q":"What are the key features of the ST25TVxxxK for industrial applications?"},{"a":"The ST25TVxxxK family includes variants from 2 Kbit to 64 Kbit of EEPROM memory.","q":"How much memory is available in the ST25TVxxxK family?"}],"standards":["iso-15693","nfc-forum-type-5"],"alternatives":["a48c6850-32cf-4cbd-b7cc-e06b7b911944","503ef72a-57f7-4d98-ae72-d654824fb4fe","7ad92841-fd4e-4422-a27f-9cc1628a41a2","2024378d-bc49-4fcc-bd6f-8426843eeecd","4191c449-4d3a-4e71-bc62-52f78fbdc2d0","6c85f338-24af-4b65-9ac1-0f852c5e1453","47b81e3f-ebcb-439f-9668-e932ea29ad97","3a1197bc-652a-422e-b9e9-29cb2e5a4e29","fe42597e-42cf-43c2-9044-a747986b1b6f","6d855bf0-6725-4a7f-8db5-d132ead2b6cb","1b6e1e9f-0746-4818-89ca-c5cf95e2ca5a","33a788dd-92e5-47cb-97fc-052eeb1daba3","79815160-bda6-472c-8854-54af70e4b5f3","4eb83c50-f1d8-4d88-9a00-d9262ab730d5","ce872773-8512-4567-827c-d2a865d938ba","411d6bec-c83f-4b2a-b8c9-b65813d193b4","6b2c6967-256a-4e1b-9ef0-38d341451b9f","a0f5f8fc-c1f4-41ac-b48a-e74bff8d8ba9","54123d8f-cb2c-4c76-85a5-de464de2334e","e4e129e5-ecab-4ff4-83a8-40bd93da92e6","321c1c34-5b6c-429e-9556-c4fa1867f512","89edb0f2-cf0b-46b6-b3f7-5b6748d27df8","579306e6-5586-4abb-925e-5dd2fcf140de"],"no_direct_competitor":false,"long_form_html":{"deployments":"<p>Potential application considerations derived from the specified use cases:</p><ul><li><a href=\"/applications/industrial-iot\">Industrial IoT</a>: Potential use in harsh-environment sensor data logging and equipment identification where Kapton substrate tolerance to temperature and chemical exposure provides advantage over standard PET or paper inlays</li><li><a href=\"/applications/asset-tracking\">Asset Tracking</a>: Potential use for reusable container tracking and tooling inventory where mechanical flexibility and durability requirements exceed conventional tag capabilities</li><li><a href=\"/applications/supply-chain\">Supply Chain</a>: Potential use for item-level identification in logistics flows where ISO/IEC 15693 infrastructure is deployed and NFC phone interoperability is concurrently required</li></ul><p>The combination of ISO/IEC 15693 range characteristics with Type 5 NFC compatibility potentially supports dual-use scenarios where long-range RFID gates and short-range NFC readers must access common data stores.</p>","buying_guide":"<p><strong>Exact Part Number:</strong> Confirm specific density variant (ST25TV02K, ST25TV04K, ST25TV16K, ST25TV64K, or other SKU substituting for <code>xxx</code>) to match memory requirements; verify suffix codes for packaging format, Kapton antenna specification, and any factory-programmed options.</p><p><strong>Documentation Revision:</strong> Request current datasheet and errata for specific silicon revision; ST25TV family has seen multiple derivatives—ensure documentation matches ordered part.</p><p><strong>Lifecycle & Roadmap:</strong> Confirm production status and any planned successor migration for multi-year deployment programs; ST25TVxxxK as industrial-focused variant may have different lifecycle parameters than consumer-oriented family members.</p><p><strong>Packaging Validation:</strong> Specify Kapton antenna mechanical requirements (thickness, bend radius, adhesive system); request sample units with production-equivalent antenna integration for environmental stress validation prior to volume commitment.</p><p><strong>RF Performance Verification:</strong> Request calibrated minimum field strength and tuning center frequency for specific antenna variant; performance claims for \"enhanced RF\" should be validated against target reader infrastructure and mounting substrates.</p><p><strong>Security Feature Confirmation:</strong> If authentication or tamper-evidence features are required, verify exact capability set per part number variant rather than assuming family-wide uniform implementation.</p>","how_it_works":"<p>The <strong>STMicroelectronics ST25TVxxxK</strong> operates as an <a href=\"/standards/iso-15693\">ISO/IEC 15693</a>-compliant <a href=\"/standards/nfc-forum-type-5\">NFC Forum Type 5</a> tag IC at <strong>13.56 MHz</strong> HF. The ISO/IEC 15693 air interface defines the modulation, coding, and anti-collision protocol for vicinity-coupling RFID systems. As a Type 5 NFC tag, it implements the <strong>NFC Forum Type 5 Tag Operation</strong> specification, which bridges ISO/IEC 15693 infrastructure with NFC ecosystem compatibility.</p><p>The IC supports <strong>Kapton antenna integration</strong>, enabling flexible form factors for industrial environments where traditional rigid antennas may fail. The enhanced RF performance characteristics are specifically optimized for challenging industrial and supply-chain deployments with variable coupling conditions.</p><p>Memory organization follows ISO/IEC 15693 block-structured addressing, with the exact capacity determined by specific part-number variant (indicated by <code>xxx</code> in the base designation). The Type 5 protocol layer enables NDEF data storage and retrieval through standardized NFC Forum commands mapped onto the ISO/IEC 15693 transport.</p>","programming_notes":"<p><strong>Reader Compatibility:</strong> Requires ISO/IEC 15693-compliant readers; NFC Type 5 support enables access from NFC Forum-certified mobile devices and dedicated readers implementing the Type 5 Tag Operation specification.</p><p><strong>Command Set:</strong> Core ISO/IEC 15693 commands include <code>INVENTORY</code> (anti-collision), <code>STAY QUIET</code>, <code>READ SINGLE BLOCK</code>, <code>WRITE SINGLE BLOCK</code>, <code>LOCK BLOCK</code>, <code>READ MULTIPLE BLOCKS</code>, <code>WRITE MULTIPLE BLOCKS</code>, <code>SELECT</code>, <code>RESET TO READY</code>, <code>WRITE AFI</code>, <code>LOCK AFI</code>, <code>WRITE DSFID</code>, <code>LOCK DSFID</code>, <code>GET SYSTEM INFORMATION</code>, and <code>GET MULTIPLE BLOCK SECURITY STATUS</code>.</p><p><strong>NDEF Considerations:</strong> Type 5 Tag Operation defines memory mapping conventions for NDEF message storage; verify that reader/library implements proper TLV structure handling for Type 5 rather than assuming Type 2/Type 4 paradigms.</p><p><strong>Memory Layout:</strong> ISO/IEC 15693 specifies 4-byte blocks; address space and user-available capacity vary by specific density variant—consult exact part number datasheet for block count and any reserved system blocks at memory boundaries.</p><p><strong>Security:</strong> Verify whether specific variant implements password protection or authentication features; not all ST25TV family members offer equivalent security levels. If supported, <code>AUTHENTICATE</code> sequence precedes protected memory access.</p><p><strong>Kapton Integration Pitfall:</strong> Antenna tuning may deviate from reference designs due to dielectric properties and thickness variations of Kapton substrate; validate with production-intent material samples rather than prototyping on standard PCB or PET inlays.</p>"},"og_image_url":"https://rfid-datasheet.com/og/chip/st25tvxxxk","canonical_url":"https://rfid-datasheet.com/chip/st25tvxxxk"}}