{"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/ucode-7","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":"2026-11-01T19:49:26.394Z","chip":{"id":"bdb7f55c-ad14-42b8-a96d-cb0907446d24","slug":"ucode-7","name":"UCODE 7","manufacturer":"NXP","frequency_category":"UHF 860–960 MHz","short_description":"EPC Gen2, high sensitivity, apparel retail","manufacturer_url":"https://www.nxp.com/docs/en/data-sheet/SL3S1204.pdf","frequency":"860 MHz to 960 MHz (UHF)","protocol":"EPC Global Gen2 v1.2.0, EPC Gen2 v2.0 ready, ISO/IEC 18000-6C","memory":"128-bit EPC (96-bit pre-serialized), 96-bit TID with 48-bit unique serial number, 64-bit reserved (32-bit kill + 32-bit access password), 16-bit Configuration Word, no user memory","interface":"RF (contactless backscatter), 2 antenna pads (RF1, RF2)","temp_range":"-40 °C to +85 °C","form_factor":"Bare die (8\" wafer 460×505 µm, 12\" wafer 480×525 µm, bumped or large pads), SOT886 XSON6 package (1.0×1.45×0.5 mm)","security":"32-bit kill password (permanent disable), 32-bit access password, (Perma)LOCK command, factory-locked TID with 48-bit unique serial number","use_cases":["supply-chain","asset-tracking","brand-protection"],"engineering_brief":"The NXP UCODE 7 (SL3S1204) is a leading-edge EPC Gen2 UHF RFID chip optimized for retail and fashion inventory management. It delivers best-in-class RF performance with -21 dBm read sensitivity and -16 dBm write sensitivity, enabling long read ranges and fast inventorying of dense tag populations. Key features include factory pre-serialization of the 96-bit EPC, parallel encoding (100 tags in 60 ms), a Tag Power Indicator for optimized encoding, and a Product Status Flag for EAS applications. Available in wafer form (8\" and 12\", standard or large pads) and SOT886 package, with broadband design for worldwide regulatory compliance.","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 UCODE 7 (SL3S1204) UHF RFID tag IC with -21 dBm read sensitivity, 128-bit EPC, Gen2 v2.0 ready. Optimized for retail and apparel inventory.","faq":[{"a":"The UCODE 7 offers -21 dBm read sensitivity and -16 dBm write sensitivity, delivering best-in-class RF performance for long read ranges in retail environments.","q":"What is the read sensitivity of the NXP UCODE 7?"},{"a":"No, the UCODE 7 has no user memory. It includes 128-bit EPC (96-bit pre-serialized), 96-bit TID with 48-bit unique serial number, 64-bit reserved memory for passwords, and a 16-bit configuration word.","q":"Does the UCODE 7 have user memory?"},{"a":"The UCODE 7 operates in the 860–960 MHz UHF frequency range with broadband design, providing worldwide regulatory compliance for global retail deployments.","q":"What frequency range does the NXP UCODE 7 support?"},{"a":"Yes, the UCODE 7 is fully compliant with EPC Global Gen2 v1.2.0 and EPC Gen2 v2.0 ready, ensuring compatibility with current and future RFID infrastructure.","q":"Is the UCODE 7 compatible with EPC Gen2 v2.0?"},{"a":"The UCODE 7 supports parallel encoding of up to 100 tags in just 60 milliseconds, enabling high-speed manufacturing and tagging operations for retail applications.","q":"How fast can UCODE 7 tags be encoded in parallel?"},{"a":"The UCODE 7 includes a 32-bit kill password for permanent disabling, 32-bit access password for memory protection, (Perma)LOCK command, and a factory-locked TID with 48-bit unique serial number.","q":"What security features does the UCODE 7 offer?"}],"standards":["iso-18000-63-epc-gen2"],"alternatives":["56ed1649-180b-46f9-958a-937c67a14dd0","24fa9e2d-500a-4dbe-b69b-83195ac3ece4","d45bce69-18ca-44fe-bef8-7ec9fddf69e6","8fb18656-0c7c-4edb-a343-653f3d28462b"],"no_direct_competitor":false,"long_form_html":null,"og_image_url":null,"canonical_url":"https://rfid-datasheet.com/chip/ucode-7"}}