產品詳情：

MIFARE? Mini S20 has a 320 Byte EEPROM read/write memory and has a strong Encryption Technology to safeguard users.
MIFARE? Mini S20 ISO Card with MIFARE? S20 chip has the functions of OTP & Read-only lock, which enables it as a multi-functional IC chip with high confidentiality and it applies to the area such as Hotel Key cards, urban mass transit, billing payment card, data acquisition system and access control.

Chip Type MIFARE? Mini S20
Functionality Read/Write
Memory (EMPROM) 320 bytes
7 byte serial number
32 bit user programmable OTP area

Protocol ISO 14443 A