... .04)mm ***Chips available:Sle4428 (memory 1k, eeprom size is 1, 024 bytes). Sle4442 (eeprom size is 256 bytes), etc. ISO 7816 ... S50- Function: Read/Write protect by password- Memory: 1K-Byte EEPROM(16 sectors)- Frequency: 13.56MHz- RF protocol: ISO 14443A- Modulation ...