{"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/mifare-ultralight","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":"2026-11-01T19:51:52.217Z","chip":{"id":"d468e153-0fc5-4c69-b762-747b5f3794cc","slug":"mifare-ultralight","name":"MIFARE Ultralight","manufacturer":"NXP","frequency_category":"HF 13.56 MHz","short_description":"Ultra-low-cost 64-byte single-use ticketing","manufacturer_url":"https://www.nxp.com/docs/en/data-sheet/MF0ICU1.pdf","frequency":"13.56 MHz","protocol":"ISO/IEC 14443-A, cascade level 2, NFC Forum Type 2 compatible","memory":"512 bits total (64 bytes): 80 bits manufacturer data, 16 bits lock bytes, 32 bits OTP, 384 bits (48 bytes) user R/W memory","interface":"RF contactless (antenna coil connection LA/LB)","temp_range":"-25°C to +70°C operating","form_factor":"Bare die (wafer): 75 µm or 120 µm thickness, Au bumps; MOA4 module (SOT500-2)","security":"7-byte UID per ISO/IEC 14443-3, 32-bit OTP area, field-programmable read-only lock per page (no encryption)","use_cases":["payments-transit","event-wristbands","nfc-marketing"],"engineering_brief":"The MF0ICU1 (MIFARE Ultralight) is an ultra-low-cost contactless IC for single-use or limited-use ticketing in public transport, events, and loyalty schemes. It offers 512 bits of EEPROM (48 bytes user writable) with a 7-byte UID, anticollision support, and page-level write-locking (no cryptography). Typical transaction time is <35 ms; data retention 5 years, 10k write cycles. Designed for direct coil attachment (17 pF or 50 pF versions) and integration into paper tickets or low-cost cards.","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 MIFARE Ultralight (MF0ICU1): 64-byte ISO 14443-A contactless IC with 7-byte UID, 48-byte user memory, and page-level locking for disposable ticketing and events.","faq":[{"a":"The MIFARE Ultralight offers 48 bytes of user read/write memory out of 64 total bytes. The remaining capacity includes 10 bytes manufacturer data, 2 bytes lock bits, and 4 bytes OTP (one-time programmable) area.","q":"How much user memory does the MIFARE Ultralight have?"},{"a":"No, the MIFARE Ultralight has no encryption or cryptographic authentication. Security is limited to a 7-byte UID, 32-bit OTP area, and field-programmable read-only locking per memory page.","q":"Does MIFARE Ultralight support encryption or authentication?"},{"a":"The MIFARE Ultralight completes a typical read/write transaction in less than 35 milliseconds, making it suitable for fast ticketing and tap-and-go applications.","q":"What is the typical transaction time for MIFARE Ultralight?"},{"a":"The MIFARE Ultralight EEPROM supports approximately 10,000 write cycles with a data retention of 5 years, making it suitable for limited-use or single-use applications like event tickets and disposable transit cards.","q":"How many write cycles can MIFARE Ultralight endure?"},{"a":"Yes, MIFARE Ultralight is NFC Forum Type 2 compliant and operates on ISO/IEC 14443-A at 13.56 MHz, making it readable by most NFC-enabled smartphones and standard contactless readers.","q":"Is MIFARE Ultralight compatible with NFC smartphones?"},{"a":"The 17 pF and 50 pF versions differ in input capacitance to match different antenna designs. The 50 pF version is optimized for smaller antennas commonly used in paper tickets and labels, while 17 pF suits larger coil antennas.","q":"What is the difference between MIFARE Ultralight 17 pF and 50 pF versions?"}],"standards":["iso-14443a","nfc-forum-type-2"],"alternatives":["503ef72a-57f7-4d98-ae72-d654824fb4fe","7ad92841-fd4e-4422-a27f-9cc1628a41a2","c2e05b76-1464-44d9-a680-9555d6822beb"],"no_direct_competitor":false,"long_form_html":null,"og_image_url":null,"canonical_url":"https://rfid-datasheet.com/chip/mifare-ultralight"}}