Type 2 is also based on ISO 14443 A standard (MIFARE Ultralight, available by NXP).
The memory structure is divided in blocks containing 4 bytes each. Each block is numbered from 0 to 15 for static memory structure or from 0 to k for dynamic memory
structure. The blocks are grouped in sectors. First four blocks contain tag UID and static
lock information. The rest of memory is used for data reading and writing. Type 2 tags
have similar states as Type 1.