General Description
A9211B is a contactless RFID Tag IC for use with proximity coupling device according to ISO/IEC 14443A standard. The communication protocol complies with parts 2 and 3 of the ISO/IEC 14443A specification.

FEATURE
– Compatible with ISO/IEC 14443A Standard
– No external power supply required
– 13.56MHz operating frequency
– Total embedded 2048 bit OTP memory
– 100% ASK demodulator
– Cascaded two level 7 byte serial number
– 106 kbps for high data rate,
– Manchester encoding TX data output

OTP Memory
– 224 x 8 bits of data memory organized in 56 pages
– Each page is organized in 4 bytes for one time programming
– Data retention up to 10 years
– Private 32bits password protected Self destruct function