MIFARE Ultralight EV1

MIFARE Active / In Production

Enhanced MIFARE Ultralight with 32-bit password protection, available in 48-byte and 128-byte variants. MIFARE Ultralight EV1 is the industry workhorse for disposable and limited-use transit tickets, event wristbands, and loyalty cards. The password prevents unauthorized write access while maintaining the low cost required for mass single-use deployment.

NXP Semiconductors | NFC Forum Type 2 | Lançado 2012

Quick Specs

MIFARE
Memory 80 bytes (user: 48 B)
Frequency 13.56 MHz
Price Range $0.040 – $0.120
Read Range 1-5 cm
Data Retention 10 years
Write Endurance 100,000 cycles

Especificações completas

Memória

Memória total80 bytes
Memória do utilizador48 bytes
Tamanho do bloco4 bytes
Blocos20

Segurança

Proteção por senha Sim
Encriptação AES Não
Assinatura de originalidade Não
Autenticação mútua Não
Algoritmo criptográfico 32-bit Password

Desempenho

Alcance de leitura1–5 cm
Retenção de dados10 anos
Durabilidade de escrita100000 ciclos
Velocidade de leitura106,0 kbps
Velocidade de escrita106,0 kbps

Compatibilidade

NFC Forum Conforme
ISO 14443 Conforme
ISO 15693 Não
Android Compatível
iOS Compatível (iOS 11+)
Frequência 13,56 MHz

Perguntas frequentes

Consider four key factors: memory size (how much data you need to store), security requirements (password protection vs AES encryption), read range (how close the user needs to be), and cost per unit at your expected volume. For simple URL tags, NTAG213 is the most cost-effective. For product authentication, NTAG 424 DNA offers secure dynamic URLs. For multi-application smart cards, MIFARE DESFire EV3 provides the highest security.

Most NFC Forum-compliant chips (NTAG 21x, MIFARE Ultralight, DESFire) work with both platforms. Android has supported NFC since version 4.0 (2011). iPhones support NFC tag reading from iPhone 7 (iOS 11) with background reading from iPhone XS (iOS 12). NFC tag writing requires iPhone 7 or later with iOS 13+. Check the compatibility section on each chip page for specific iOS version requirements.

Total memory is the full EEPROM capacity of the NFC chip, including internal configuration bytes, capability containers, lock bits, and manufacturer data. User memory is the portion available for your NDEF records (URLs, text, vCards). For example, NTAG213 has 180 bytes total but only 144 bytes of user-accessible NDEF storage.

Most NFC chips guarantee data retention of 10 years or more, with many specifying 25-50 years under normal conditions. The EEPROM technology used in NFC chips does not require power to retain data. Write endurance is typically 10,000 to 100,000 cycles, meaning you can rewrite the tag thousands of times before the memory cells degrade.

It depends on the chip's security features. Basic tags (NTAG 213/215/216) can be read and duplicated onto blank tags, though the UID is unique and read-only. Chips with originality signatures (NTAG 21x) allow verification of genuine NXP silicon. Advanced chips like NTAG 424 DNA and DESFire EV3 use AES-128 mutual authentication, making cloning computationally infeasible.