# NFCFYI

> The NFC Chip Encyclopedia & Toolkit — 47 NFC chips, guides, and tools.

## Markdown Endpoints

Every page supports `.md` suffix for LLM-friendly markdown:
- https://nfcfyi.com/chip/ntag213.md
- https://nfcfyi.com/guide/nfc-fundamentals.md
- https://nfcfyi.com/glossary/ndef.md

## Content Index

### NFC Chips
- [NTAG 213](https://nfcfyi.com/chip/ntag213/.md): NTAG 213: world's most popular NFC tag with 144 bytes, password protection, and originality signature. Universal smartphone compatibility.
- [NTAG 215](https://nfcfyi.com/chip/ntag215/.md): NTAG 215: 504-byte NFC tag used in Nintendo amiibo. Ideal for gaming collectibles, vCards, and extended URL applications.
- [NTAG 216](https://nfcfyi.com/chip/ntag216/.md): NTAG 216: largest NTAG 21x with 888 bytes for full vCards and multi-record tags. Top choice for digital business cards.
- [NTAG 424 DNA](https://nfcfyi.com/chip/ntag424/.md): NTAG 424 DNA: NXP's flagship authentication tag with AES-128 SDM. Gold standard for luxury brand and pharma anti-counterfeiting.
- [MIFARE Ultralight EV1](https://nfcfyi.com/chip/mifare-ultralight-ev1/.md): MIFARE Ultralight EV1: industry standard for disposable transit tickets with password protection. Low-cost mass deployment.
- [MIFARE Classic 1K](https://nfcfyi.com/chip/mifare-classic-1k/.md): MIFARE Classic 1K: 1 KB contactless card with Crypto-1. World's most deployed legacy card for transit and access control.
- [MIFARE DESFire EV3](https://nfcfyi.com/chip/mifare-desfire-ev3/.md): MIFARE DESFire EV3: most secure NXP smart card with AES-128 SUN/SDM. Industry standard for transit, access, and credentials.
- [ICODE SLIX2](https://nfcfyi.com/chip/icode-slix2/.md): ICODE SLIX2: most popular library RFID tag with 312 bytes and originality signature. ISO 15693 with EAS security gates.
- [ST25DV](https://nfcfyi.com/chip/st25dv/.md): ST25DV: dynamic NFC tag with I2C bridge for IoT. Energy harvesting, mailbox messaging, and 4 KB for sensor applications.
- [FeliCa Standard](https://nfcfyi.com/chip/felica-standard/.md): FeliCa Standard: Sony's flagship smart card for Japan's Suica/PASMO transit. Sub-100ms transactions at 424 kbps with 3DES.

### Reference
- [All Chips](https://nfcfyi.com/chip.md)
- [Standards](https://nfcfyi.com/standard.md)
- [Operating Modes](https://nfcfyi.com/mode.md)
- [NDEF Types](https://nfcfyi.com/ndef.md)
- [Glossary](https://nfcfyi.com/glossary.md)

### Guides & Tools
- [Guides](https://nfcfyi.com/guide.md)
- [Use Cases](https://nfcfyi.com/use-case.md)
- [Tools](https://nfcfyi.com/tools/)
- [Comparisons](https://nfcfyi.com/compare.md)

- Full reference: https://nfcfyi.com/llms-full.txt

## Related
- [QRCodeFYI](https://qrcodefyi.com/llms.txt) — The QR Code Encyclopedia & Toolkit
- [BarcodeFYI](https://barcodefyi.com/llms.txt) — The Barcode Encyclopedia & Toolkit
- [BLEFYI](https://blefyi.com/llms.txt) — The BLE Encyclopedia & Toolkit
- [RFIDFYI](https://rfidfyi.com/llms.txt) — The RFID Encyclopedia & Toolkit
- [SmartCardFYI](https://smartcardfyi.com/llms.txt) — The Smart Card Encyclopedia & Toolkit