{"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/icode-sli","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":"2026-11-01T19:50:36.311Z","chip":{"id":"c0855504-b23e-4e9f-bd4f-cea9a9fe2d0d","slug":"icode-sli","name":"ICODE SLI","manufacturer":"NXP","frequency_category":"HF 13.56 MHz","short_description":"ISO 15693 item-level library and retail","manufacturer_url":"https://www.nxp.com/docs/en/data-sheet/058031.pdf","frequency":"13.56 MHz","protocol":"ISO/IEC 15693-2, ISO/IEC 15693-3","memory":"1024 bits (32 blocks × 4 bytes), 28 user blocks (112 bytes user memory)","interface":"RF (contactless)","temp_range":"Not specified in datasheet","form_factor":"Wafer/die (for label integration)","security":"Unique 64-bit UID, block-level write protection (lock mechanism), EAS (Electronic Article Surveillance) bit, AFI (Application Family Identifier), DSFID (Data Storage Format Identifier)","use_cases":["library-rfid","supply-chain","asset-tracking"],"engineering_brief":"The I•CODE SLI (SL2 ICS20) is a contactless smart label IC compliant with ISO/IEC 15693, operating at 13.56 MHz. It features 1024 bits of EEPROM organized into 32 blocks (112 bytes user-accessible), with a read range up to 1.5 meters depending on antenna design. The chip supports true anticollision, fast data transfer up to 53 kbit/s, and offers security features including a factory-programmed unique 64-bit identifier, per-block write-lock, and Electronic Article Surveillance (EAS) functionality. Designed for smart labels in logistics, retail item-level tagging, library systems, and baggage tracking, it provides 10 years data retention and 100,000 write cycles endurance.","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":"6daaf1cc-d0e6-40c7-aba0-a08b4c3493fe","chip_type":"tag_ic","dual_interface":false,"is_family_hub":false,"meta_description":"NXP ICODE SLI ISO 15693 RFID tag IC with 112 bytes user memory, 1.5m read range, and EAS functionality for library, retail, and logistics applications.","faq":[{"a":"The ICODE SLI provides 112 bytes of user-accessible memory organized in 28 blocks of 4 bytes each. The total EEPROM is 1024 bits (32 blocks), with 4 blocks reserved for system functions.","q":"How much user memory does the NXP ICODE SLI have?"},{"a":"The ICODE SLI achieves read ranges up to 1.5 meters, depending on antenna design and reader power. This makes it suitable for overhead gate reading in library and logistics applications.","q":"What is the read range of the ICODE SLI chip?"},{"a":"Yes, the ICODE SLI supports true anticollision functionality per ISO/IEC 15693, enabling simultaneous detection and reading of multiple tags in the reader field.","q":"Does the ICODE SLI support anticollision for reading multiple tags?"},{"a":"The ICODE SLI includes a factory-programmed unique 64-bit UID, block-level write protection with lock mechanism, EAS (Electronic Article Surveillance) bit for theft detection, AFI for application filtering, and DSFID for data format identification.","q":"What security features does the NXP ICODE SLI offer?"},{"a":"The ICODE SLI supports fast data transfer rates up to 53 kbit/s in accordance with ISO/IEC 15693 specifications, enabling quick inventory and tracking operations.","q":"What is the data transfer speed of the ICODE SLI?"},{"a":"The ICODE SLI is rated for 100,000 write cycles with 10 years data retention, making it suitable for applications requiring periodic updates over extended lifespans.","q":"How many write cycles can the ICODE SLI endure?"}],"standards":["iso-15693","nfc-forum-type-5"],"alternatives":["f0071a4a-6235-4046-a9b9-b28138045578","c2e05b76-1464-44d9-a680-9555d6822beb","2024378d-bc49-4fcc-bd6f-8426843eeecd","503ef72a-57f7-4d98-ae72-d654824fb4fe"],"no_direct_competitor":false,"long_form_html":null,"og_image_url":null,"canonical_url":"https://rfid-datasheet.com/chip/icode-sli"}}