Zebra Technologies R402 - Manual (Page 33)

Texas Instruments Tag-it™ Transponders
Texas Instruments transponders are high frequency (13.56MHz) RFID
devices. Each transponder has 256 bits of memory. Data is segmented into
4 byte (32 bit) blocks that are uniquely addressable, for a total of 8 blocks.
Each memory block is lockable using the write protect function during the
writing process.
Texas Instruments Tag-it™ Blocks
Block # Description Bytes
0 User Data
32 User
1 User Data
2 User Data
3 User Data
4 User Data
5 User Data
6 User Data
7 User Data