產品詳情：

PN512 is the most broadly adopted NFC frontend - powering more than 10 billion NFC
transactions per year.
It is a highly integrated NFC frontend for contactless communication at 13.56 MHz. This
NFC frontend utilizes an outstanding modulation and demodulation concept completely
integrated for different kinds of contactless communication methods and protocols at
13.56 MHz.
The PN512 NFC frontend supports 4 different operating modes
Reader/Writer mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme
Reader/Writer mode supporting ISO/IEC 14443B
Card Operation mode supporting ISO/IEC 14443A/MIFARE and FeliCa scheme