ISO/IEC 14443 uses the following terms for components: Type A cards use amplitude-shift keying (ASK) with Modified Miller coding for reader-to-tag communication. For tag-to-reader communication, they use on-off keying (OOK) with Manchester code.

ISO 14443A-4. Protocol for smartcards is referred as T=CL and is basically the same as for T=1 (for contact smartcards).

ISO/IEC 14443 is a four-part international standard for Contactless Smart Cards operating at 13.56 MHz in close proximity with a reader antenna. Proximity Integrated Circuit Cards (PICC) are intended to operate within approximately 10cm of the reader antenna.

In this document, the term „MIFARE card“ refers to a contactless card using an IC out of the MIFARE Classic, MIFARE Ultralight, MIFARE Plus or MIFARE DESFire product family. The ISO/IEC 14443-3 describes how to select (“activate”) a single card.

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The ISO/IEC 14443 standard is a four-part international standard for contact-less smart cards operating at 13.56 MHz in close proximity (~10cm) with a reader antenna. This ISO standard describes the modulation and transmission protocols between card and reader to create interoperability for contact-less smart card products.

1 Anti-Collision Sequence for ISO14443A 2 Pseudo-Code for ISO14443A Tag Detection 2.1 Setting Up of Registers 2.2 Send REQA Command Anti-Collision Sequence for ISO14443A www.ti.com The commands used by the PCD during anti-collision are:

There are two types under ISO/IEC 14443 standard, that Type A and Type B, both of which communicate via radio at 13.56 MHz (RFID HIGH FREQUENCY). The main differences between these two kinds concern modulation methods, coding schemes (Part 2) and protocol initialization procedures (Part 3).

The MIFARE Classic EV1 1K cards and key fobs operate on the 14443A standard, which is a widely adopted standard for contactless smart cards. The IC inside the cards are the MIFARE MF1 IC S50, which are NXP's proprietary chips. They also comply with international standards such as ISO/IEC 15693.

ISO 14443-2 Type A and Type B smart cards use transmission protocols to communicate with smart card readers. Smart cards built according to ISO 14443-2 use the 13.56 MHz communication frequency.