{"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/st25dv04k","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":"2026-11-01T19:50:46.739Z","chip":{"id":"47b81e3f-ebcb-439f-9668-e932ea29ad97","slug":"st25dv04k","name":"ST25DV04K","manufacturer":"STMicroelectronics","frequency_category":"NFC","short_description":"Dynamic NFC/RFID tag with 4-Kbit EEPROM and I²C","manufacturer_url":"https://vbtdkdldajoxuasljhkm.supabase.co/storage/v1/object/public/datasheets/st25dv04k.pdf","frequency":"13.56 MHz","protocol":"ISO/IEC 15693, NFC Forum Type 5","memory":"512 bytes (4 Kbit) EEPROM","interface":"RF (contactless), I²C","temp_range":"-40°C to +85°C","form_factor":"SO8N, TSSOP8, UFDFPN8","security":"64-bit password protection, dual-zone security, write protection","use_cases":["industrial-iot","asset-tracking","nfc-marketing","supply-chain"],"engineering_brief":"The ST25DV04K is a dynamic dual-interface NFC tag combining 13.56 MHz contactless RF communication via ISO/IEC 15693 with a fast I²C wired interface for embedded system integration. It features 512 bytes of EEPROM organized with configurable security zones, energy harvesting capability from the RF field, and fast transfer mode up to 53 kbit/s. The chip enables applications requiring both wireless smartphone interaction and direct microcontroller access, with mailbox functionality for bidirectional communication between RF and I²C interfaces.","enriched":true,"url_status":"ok","link_status":"valid","last_checked":"2026-11-01T03:31:28.371+00:00","last_status_code":200,"last_content_type":"application/pdf","created_at":"2026-06-14T16:30:56.111445+00:00","manufacturer_id":"0c208bcb-2193-4014-9a7f-783bb32a8c9e","chip_type":"tag_ic","dual_interface":true,"is_family_hub":false,"meta_description":"STMicroelectronics ST25DV04K: Dual-interface NFC Type 5 tag IC with 512-byte EEPROM, I²C + 13.56 MHz RF, ISO/IEC 15693, energy harvesting for IoT applications.","faq":[{"a":"The ST25DV04K has 512 bytes (4 Kbit) of EEPROM memory. This memory is organized with configurable security zones for flexible access control.","q":"How much memory does the ST25DV04K have?"},{"a":"The ST25DV04K features dual interfaces: contactless 13.56 MHz RF communication via ISO/IEC 15693 and NFC Forum Type 5, plus a wired I²C interface for direct microcontroller access. This enables both wireless smartphone interaction and embedded system integration.","q":"What interfaces does the ST25DV04K support?"},{"a":"Yes, the ST25DV04K includes energy harvesting capability from the RF field, allowing it to power external circuits or sensors when exposed to an NFC reader field.","q":"Does the ST25DV04K support energy harvesting?"},{"a":"The ST25DV04K provides 64-bit password protection, dual-zone security for partitioned memory access control, and write protection capabilities to secure data against unauthorized modification.","q":"What security features does the ST25DV04K offer?"},{"a":"The mailbox function enables bidirectional communication between the RF and I²C interfaces, allowing a microcontroller and NFC reader to exchange data dynamically through the tag.","q":"What is the mailbox function on the ST25DV04K?"},{"a":"The ST25DV04K supports fast transfer mode up to 53 kbit/s over the RF interface, enabling quicker data exchange during NFC transactions.","q":"What is the maximum data transfer speed for ST25DV04K?"}],"standards":["iso-15693","nfc-forum-type-5"],"alternatives":["8a96cd0b-6895-472f-9c61-557c90358381"],"no_direct_competitor":false,"long_form_html":null,"og_image_url":null,"canonical_url":"https://rfid-datasheet.com/chip/st25dv04k"}}