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Figure 4-1.
Memory Architecture Diagram
Block Erase Detail
Page Program Detail
Internal Sectoring for
64KB 32KB
4KB
1-256 Byte
Sector Protection
Function
Block Erase Block Erase
(D8h Command) (52h Command)
32KB
Block Erase
(20h Command)
4KB
Block Address
Range
1FFFFFh – 1FF000h
Page Program
(02h Command)
256 Bytes
256 Bytes
256 Bytes
Page Address
Range
1FFFFFh
– 1FFF00h
1FFEFFh
– 1FFE00h
1FFDFFh
– 1FFD00h
128KB
(Sector 15)
128KB
64KB
64KB
64KB
32KB
32KB
32KB
32KB
32KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
1F8FFFh – 1F8000h
1F7FFFh – 1F7000h
1F0FFFh – 1F0000h
1EFFFFh – 1EF000h
1E8FFFh – 1E8000h
1E7FFFh – 1E7000h
1E0FFFh – 1E0000h
1DFFFFh – 1DF000h
1D8FFFh – 1D8000h
1D7FFFh – 1D7000h
1D0FFFh – 1D0000h
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
1FFCFFh
1FFBFFh
1FFAFFh
1FF9FFh
1FF8FFh
1FF7FFh
1FF6FFh
1FF5FFh
1FF4FFh
1FF3FFh
1FF2FFh
1FF1FFh
1FF0FFh
1FEFFFh
1FEEFFh
1FEDFFh
1FECFFh
1FEBFFh
1FEAFFh
1FE9FFh
1FE8FFh
– 1FFC00h
– 1FFB00h
– 1FFA00h
– 1FF900h
– 1FF800h
– 1FF700h
– 1FF600h
– 1FF500h
– 1FF400h
– 1FF300h
– 1FF200h
– 1FF100h
– 1FF000h
– 1FEF00h
– 1FEE00h
– 1FED00h
– 1FEC00h
– 1FEB00h
– 1FEA00h
– 1FE900h
– 1FE800h
(Sector 14)
32KB
4KB
1CFFFFh – 1CF000h
64KB
32KB
4KB
4KB
4KB
1C8FFFh – 1C8000h
1C7FFFh – 1C7000h
1C0FFFh – 1C0000h
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
0017FFh
0016FFh
0015FFh
0014FFh
0013FFh
– 001700h
– 001600h
– 001500h
– 001400h
– 001300h
256 Bytes
256 Bytes
256 Bytes
0012FFh
0011FFh
0010FFh
– 001200h
– 001100h
– 001000h
32KB
4KB
01FFFFh – 01F000h
256 Bytes
256 Bytes
256 Bytes
000FFFh
000EFFh
000DFFh
– 000F00h
– 000E00h
– 000D00h
128KB
(Sector 0)
64KB
64KB
32KB
32KB
32KB
4KB
4KB
4KB
4KB
4KB
4KB
4KB
018FFFh – 018000h
017FFFh – 017000h
010FFFh – 010000h
00FFFFh – 00F000h
008FFFh – 008000h
007FFFh – 007000h
000FFFh – 000000h
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
000CFFh
000BFFh
000AFFh
0009FFh
0008FFh
0007FFh
0006FFh
0005FFh
0004FFh
0003FFh
0002FFh
0001FFh
0000FFh
– 000C00h
– 000B00h
– 000A00h
– 000900h
– 000800h
– 000700h
– 000600h
– 000500h
– 000400h
– 000300h
– 000200h
– 000100h
– 000000h
4
AT26DF161
3599H–DFLASH–8/09
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