1. General Information & Device Variety:

️· The document describes a series of NAND flash memory devices, available in the following densities:
- 128Mb
- 256Mb
- 512Mb
- 1Gb

2. Memory Map Organization:

️· Partitioning: The main array memory is divided into partitions.
️· Block Structure: Each partition is further divided into blocks.
️· Address Ranges: Each block has a defined address range.
️· Programming Regions: Each block is divided into programming regions (1KB each).
️· Segments: Each programming region is further divided into segments (32 bytes each).

3. Memory Map Tables (Key Details):

️· 128Mb Device:
- 7 partitions
- 16 blocks per partition
- Address Range Examples:
■ Partition 0, Block 0: 0000000 - 001FFFF
■ Partition 7, Block 224: 1C00000 - 1C1FFFF
️· 256Mb Device:
- 7 partitions
- 16 blocks per partition
- Address Range Examples:
■ Partition 0, Block 0: 0000000 - 001FFFF
■ Partition 7, Block 224: 1C00000 - 1C1FFFF
️· 512Mb Device:
- 7 partitions
- 64 blocks per partition
- Address Range Examples:
■ Partition 0, Block 0: 0000000 - 001FFFF
■ Partition 7, Block 224: 1C00000 - 1C1FFFF
️· 1Gb Device:
- 7 partitions
- 64 blocks per partition
- Address Range Examples:
■ Partition 0, Block 0: 0000000 - 001FFFF
■ Partition 7, Block 224: 1C00000 - 1C1FFFF

4. Key Terminology:

️· Partition: A logical division of the memory array.
️· Block: A subdivision within a partition, used for addressing and operations.
️· Address Range: The specific memory locations associated with a block.
️· Programming Region: The smallest unit of memory that can be programmed (1 KB).
️· Segment: The smallest writable unit within a programming region (32 bytes).



Important Notes:

️· The tables provide *examples* of address ranges. The full tables would contain addresses for *all* blocks in all partitions for each density.
️· The format is critical for understanding the memory architecture and for interfacing with the device.