Memory device with sector pointer structure

A non-volatile memory system comprising:

• a controller for externally transferring data identified by logical sector addresses;
• and
• a memory connectable to the controller, the memory having an array including:
• a non-volatile data storage portion having a plurality of sectors for storing user data, wherein each sector contains a plurality of data storage elements and is identified by a physical address;
• and
• a first pointer structure area formed along a first side of the array for storing correspondences between logical sector addresses and physical sector addresses,
• wherein the memory system transfers data between the controller and the memory based on logical sector addresses and converts logical sector addresses into a corresponding physical sector addresses on the memory using the pointer structure, and further comprising
• a second pointer structure area for storing correspondences between logical sector addresses and physical sector addresses formed on a portion of the array non-adjacent to the first pointer structure
• wherein the first and second pointer structure each include a flag bit indicating which of the pointer structures is currently active.

A non-volatile memory system comprising:

• a controller for externally transferring data identified by logical sector addresses;
• and
• a memory connectable to the controller, the memory having an array including:
• a non-volatile data storage portion having a plurality of sectors for storing user data, wherein each sector contains a plurality of data storage elements and is identified by a physical address;
• and
• a first pointer structure area formed along a first side of the array for storing correspondences between logical sector addresses and physical sector addresses,
• wherein the memory system transfers data between the controller and the memory based on logical sector addresses and converts logical sector addresses into a corresponding physical sector addresses on the memory using the pointer structure, and
• wherein the data storage portion includes a plurality of planes and the pointer stores a number of row addresses equal to the number of planes for each correspondence.

A non-volatile memory system, comprising:

• a controller for externally transferring data identified by logical sector addresses;
• and
• a memory connectable to the controller, the memory having an array including:
• a non-volatile data storage portion having a plurality of sectors for storing user data, wherein each sector contains a plurality of data storage elements and is identified by a physical address;
• and
• a first pointer structure area formed along a first side of the array for storing correspondences between logical sector addresses and physical sector addresses,
• wherein the controller and memory on separate integrated circuits and the memory system transfers data between the controller and the memory based on logical sector addresses and converts logical sector addresses into a corresponding physical sector addresses on the memory using the pointer structure, and
• wherein the pointer structure concurrently maintains a first correspondence between a logical sector address and a first physical sector address at which currently valid data identified by the logical sector address is stored and a second correspondence between the logical sector address and a second distinct physical sector address at which previously valid data identified by the logical sector address has been stored.