Rainbow Electronics AT25DL081 - Manual (Page 6)

6 AT25DL081 [DATASHEET]
8732D–DFLASH–12/2012
4. Memory Array
To provide the greatest flexibility, the AT25DL081 memory array can be erased in four levels of granularity, including a
full Chip Erase. In addition, the array has been divided into physical sectors of uniform size, which can be individually
protected from program and erase operations. The size of the physical sectors is optimized for both code and data
storage applications, allowing both code and data segments to reside in their own isolated regions. The memory
architecture diagram illustrates the breakdown of each erase level, as well as the breakdown of each physical sector.
Figure 4-1. Memory Architecture Diagram
Internal Sectoring for 64KB 32KB 4KB 1 to 256 bytes
Sector Protection Block Erase Block Erase Block Erase Page Program
Function (D8h Command) (52h Command) (20h Command) (02h Command)
4KB 0F F F F F h – 0F F 000h 256 bytes 0F F F F F h – 0F F F 00h
4KB 0F E F F F h– 0F E 000h 256 bytes 0F F E F F h– 0F F E 00h
4KB 0F DF F F h – 0F D000h 256 bytes 0F F DF F h – 0F F D00h
4KB 0F CF F F h – 0F C000h 256 bytes 0F F CF F h – 0F F C00h
4KB 0F BF F F h – 0F B000h 256 bytes 0F F BF F h – 0F F B00h
4KB 0F AF F F h – 0F A000h 256 bytes 0F F AF F h – 0F F A00h
4KB 0F 9F F F h – 0F 9000h 256 bytes 0F F 9F F h – 0F F 900h
4KB 0F 8F F F h – 0F 8000h 256 bytes 0F F 8F F h – 0F F 800h
4KB 0F 7F F F h – 0F 7000h 256 bytes 0F F 7F F h – 0F F 700h
4KB 0F 6F F F h – 0F 6000h 256 bytes 0F F 6F F h – 0F F 600h
4KB 0F 5F F F h – 0F 5000h 256 bytes 0F F 5F F h – 0F F 500h
4KB 0F 4F F F h – 0F 4000h 256 bytes 0F F 4F F h – 0F F 400h
4KB 0F 3F F F h – 0F 3000h 256 bytes 0F F 3F F h – 0F F 300h
4KB 0F 2F F F h – 0F 2000h 256 bytes 0F F 2F F h – 0F F 200h
4KB 0F 1F F F h – 0F 1000h 256 bytes 0F F 1F F h – 0F F 100h
4KB 0F 0F F F h – 0F 0000h 256 bytes 0F F 0F F h – 0F F 000h
4KB 0E F F F F h– 0E F 000h 256 bytes 0F E F F F h– 0F E F 00h
4KB 0E E F F F h– 0E E 000h 256 bytes 0F E E F F h– 0F E E 00h
4KB 0E DF F F h – 0E D000h 256 bytes 0F E DF F h – 0F E D00h
4KB 0E CF F F h– 0E C000h 256 bytes 0F E CF F h– 0F E C00h
4KB 0E BF F F h– 0E B000h 256 bytes 0F E BF F h– 0F E B00h
4KB 0E AF F F h – 0E A000h 256 bytes 0F E AF F h – 0F E A00h
4KB 0E 9F F F h – 0E 9000h 256 bytes 0F E 9F F h – 0F E 900h
4KB 0E 8F F F h – 0E 8000h 256 bytes 0F E 8F F h – 0F E 800h
4KB 0E 7F F F h – 0E 7000h
4KB 0E 6F F F h – 0E 6000h
4KB 0E 5F F F h – 0E 5000h
4KB 0E 4F F F h – 0E 4000h 256 bytes 0017F F h – 001700h
4KB 0E 3F F F h – 0E 3000h 256 bytes 0016F F h – 001600h
4KB 0E 2F F F h – 0E 2000h 256 bytes 0015F F h – 001500h
4KB 0E 1F F F h – 0E 1000h 256 bytes 0014F F h – 001400h
4KB 0E 0F F F h – 0E 0000h 256 bytes 0013F F h – 001300h
256 bytes 0012F F h – 001200h
256 bytes 0011F F h – 001100h
256 bytes 0010F F h – 001000h
4KB 00F F F F h – 00F 000h 256 bytes 000F F F h – 000F 00h
4KB 00E F F F h – 00E 000h 256 bytes 000E F F h – 000E 00h
4KB 00DF F F h – 00D000h 256 bytes 000DF F h – 000D00h
4KB 00CF F F h – 00C000h 256 bytes 000CF F h – 000C00h
4KB 00BF F F h – 00B000h 256 bytes 000BF F h – 000B00h
4KB 00AF F F h – 00A000h 256 bytes 000AF F h – 000A00h
4KB 009F F F h – 009000h 256 bytes 0009F F h – 000900h
4KB 008F F F h – 008000h 256 bytes 0008F F h – 000800h
4KB 007F F F h – 007000h 256 bytes 0007F F h – 000700h
4KB 006F F F h – 006000h 256 bytes 0006F F h – 000600h
4KB 005F F F h – 005000h 256 bytes 0005F F h – 000500h
4KB 004F F F h – 004000h 256 bytes 0004F F h – 000400h
4KB 003F F F h – 003000h 256 bytes 0003F F h – 000300h
4KB 002F F F h – 002000h 256 bytes 0002F F h – 000200h
4KB 001F F F h – 001000h 256 bytes 0001F F h – 000100h
4KB 000F F F h – 000000h 256 bytes 0000F F h – 000000h
64KB
• • •
64KB
32KB
32KB
• • •
Range
• • •
• • •
Range
Page Program Detail
Page Address Block Address
64KB
64KB
(Sector 15)
Block Erase Detail
32KB
32KB
64KB
(Sector 0)
32KB
32KB
• • •
64KB
(Sector 14)