{"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-dna-city","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":"2026-10-28T10:40:37.637Z","chip":{"id":"4cf564db-8810-4ca1-8580-b31ef2bdbc93","slug":"ucode-dna-city","name":"UCODE DNA City","manufacturer":"NXP","frequency_category":"UHF 860–960 MHz","short_description":"UHF RFID chip with AES mutual authentication and tamper-evident features for brand protection","manufacturer_url":"https://www.nxp.com/products/rfid/ucode/ucode-dna-city:UCODE_DNA_CITY","frequency":null,"protocol":null,"memory":null,"interface":null,"temp_range":null,"form_factor":null,"security":null,"use_cases":null,"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":"2026-10-26T03:00:37.677265+00:00","manufacturer_id":"6daaf1cc-d0e6-40c7-aba0-a08b4c3493fe","chip_type":"tag_ic","dual_interface":false,"is_family_hub":false,"meta_description":null,"faq":null,"standards":null,"alternatives":null,"no_direct_competitor":false,"long_form_html":{"deployments":"<p>Potential use cases based on the chip's specified capabilities include:</p><ul><li><strong>Brand protection and anti-counterfeiting</strong> — AES authentication enables verification of genuine products in supply chains</li><li><strong>High-value goods tracking</strong> — tamper-evident features may support jewelry, pharmaceuticals, or luxury items where proof of unopened packaging matters</li><li><strong>Secure access documents</strong> — cryptographic features may suit applications requiring cloning-resistant identification</li></ul><p>These are illustrative applications supported by the chip's security architecture; actual deployment configurations vary by implementation.</p>","buying_guide":"<p>When evaluating UCODE DNA City supply:</p><ul><li>Confirm exact <strong>part number variant</strong> — NXP produces multiple UCODE DNA derivatives with different feature sets (see <a href=\"/chip/ucode-dna\">UCODE DNA</a> base family and <a href=\"/chip/ucode-9m\">UCODE 9m</a> for comparison)</li><li>Request <strong>current datasheet revision</strong> and errata; EPC Gen2 v2 implementation details may have clarifications</li><li>Verify <strong>tamper-evident physical integration</strong> — the IC enables tamper detection but requires specific antenna/construction design to realize this function</li><li>Understand <strong>key provisioning model</strong> — whether supplied with pre-loaded keys, blank, or via NXP's Trust Provisioning service</li><li>Confirm <strong>regional frequency tuning</strong> for target 860–960 MHz markets (regional sub-bands vary)</li><li>Validate <strong>reader compatibility</strong> with Gen2 v2 AES authentication commands in your target hardware</li></ul>","how_it_works":"<p>The <strong>UCODE DNA City</strong> is a passive UHF RFID IC operating in the <strong>860–960 MHz</strong> frequency range, compliant with <strong>ISO/IEC 18000-63</strong> and <strong>EPC Gen2 v2.0.1</strong> (also known as EPCglobal Class 1 Generation 2 v2). It communicates via backscatter modulation, harvesting energy from the reader carrier wave.</p><p>Key operational features include:</p><ul><li><strong>AES-128 mutual authentication</strong> between tag and reader, providing cryptographic verification of tag authenticity</li><li><strong>Tamper-evident functionality</strong> that can detect and permanently record physical opening or breach events</li><li><strong>EPC Gen2 v2</strong> security extensions supporting encrypted communication and access control</li><li>Standard EPC Gen2 anti-collision algorithm (Q-algorithm) for dense reader environments</li></ul><p>The AES cryptographic engine enables brand protection and anti-counterfeiting workflows beyond basic EPC memory operations.</p>","programming_notes":"<p>The UCODE DNA City extends standard EPC Gen2 v2 command set with security operations. Relevant command families include:</p><ul><li>Standard <code>SELECT</code>, <code>QUERY</code>, <code>READ</code>, <code>WRITE</code>, <code>KILL</code>, <code>LOCK</code> per EPC Gen2 v2</li><li><strong>AUTHENTICATE</strong> command for mutual authentication exchange using AES-128</li><li>Cryptographic access control to memory banks post-authentication</li></ul><p>Integration considerations:</p><ul><li>Requires <strong>EPC Gen2 v2-capable reader</strong> with AES authentication support; backward compatibility exists for non-authenticated operations</li><li>Tamper-evident bit, once set by physical breach, cannot be reset — impacts field return processes</li><li>Key management infrastructure required for AES key distribution and management</li><li>Memory lock status and security configuration should be verified during commissioning</li></ul><p>Consult <a href=\"/chip/ucode-dna\">UCODE DNA</a> family documentation for shared architecture details; City variant specifically targets applications requiring tamper evidence.</p>"},"og_image_url":"https://rfid-datasheet.com/og/chip/ucode-dna-city","canonical_url":"https://rfid-datasheet.com/chip/ucode-dna-city"}}