Dynamic mapping of logical ranges to write blocks

A memory device, comprising:

• a plurality of memory blocks;
• and
• a controller configured to:
• (A) receive a request to write data to the memory device, where the data has a logical block address (LBA) within a first LBA range;
• (B) determine whether a first assigned block exists in the plurality of memory blocks, the first assigned block assigned for writing data for the first LBA range;
• and
• (C) if the first assigned block does not exist and an unwritten block is not available:
• identify a second assigned block in the plurality of memory blocks, where the second assigned block is assigned for writing data for a second LBA range;
• assign the second assigned block for writing data for both the first LBA range and the second LBA range;
• and
• write the data to the second assigned block.

A method of writing data to a memory device having a plurality of memory blocks, comprising:

• (A) receiving a request to write data to the memory device, where the data has a first attribute;
• (B) determining whether a first assigned block exists in the plurality of memory blocks, the first assigned block assigned for writing data with the first attribute;
• and
• (C) if the first assigned block does not exist and an unwritten block is not available in the plurality of memory blocks:
• identifying a second assigned block in the plurality of memory blocks, where the second assigned block is assigned for writing data with a second attribute;
• assigning the second assigned block for writing data for both the first attribute and the second attribute;
• and
• writing the data to the second assigned block.