The ACR122S NFC Contactless Smart Card Reader is the serial interface reader
in the ACR122 family developed based on the 13.56 MHz Contactless (RFID)
Technology and compliant with the ISO/IEC 18092 Standard for Near Field
Communication (NFC). It supports Mifare®, ISO 14443 Type A and B, FeliCa and NFC
cards and devices, including all three NFC modes (reader, card emulation and
peer-to-peer) and four types of NFC tags.