Figure 4-1.
Memory Architecture Diagram
Block Erase Detail
Page Program Detail
1-256 Byte
Page Program
(02h Command)
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
256 Bytes
256 Bytes
256 Bytes
Internal
Sectoring
for
Sector
Protection
Function
64KB
32KB
Block Erase
Block Erase
(D8h Command) (52h Command)
4KB
Block Erase
(20h Command)
4KB
Block Address
Range
1FFFFFh – 1FF000h
Page Address
Range
1FFFFFh
1FFEFFh
1FFDFFh
1FFCFFh
1FFBFFh
1FFAFFh
1FF9FFh
1FF8FFh
1FF7FFh
1FF6FFh
1FF5FFh
1FF4FFh
1FF3FFh
1FF2FFh
1FF1FFh
1FF0FFh
1FEFFFh
1FEEFFh
1FEDFFh
1FECFFh
1FEBFFh
1FEAFFh
1FE9FFh
1FE8FFh
– 1FFF00h
– 1FFE00h
– 1FFD00h
– 1FFC00h
– 1FFB00h
– 1FFA00h
– 1FF900h
– 1FF800h
– 1FF700h
– 1FF600h
– 1FF500h
– 1FF400h
– 1FF300h
– 1FF200h
– 1FF100h
– 1FF000h
– 1FEF00h
– 1FEE00h
– 1FED00h
– 1FEC00h
– 1FEB00h
– 1FEA00h
– 1FE900h
– 1FE800h
32KB
64KB
32KB
128KB
(Sector 15)
32KB
64KB
32KB
•••
4KB
4KB
1F8FFFh – 1F8000h
1F7FFFh – 1F7000h
•••
4KB
4KB
1F0FFFh – 1F0000h
1EFFFFh – 1EF000h
•••
4KB
4KB
1E8FFFh – 1E8000h
1E7FFFh – 1E7000h
•••
4KB
4KB
32KB
64KB
32KB
128KB
(Sector 14)
32KB
64KB
32KB
1E0FFFh – 1E0000h
1DFFFFh – 1DF000h
•••
4KB
4KB
1D8FFFh – 1D8000h
1D7FFFh – 1D7000h
•••
4KB
4KB
1D0FFFh – 1D0000h
1CFFFFh – 1CF000h
•••
4KB
4KB
1C8FFFh – 1C8000h
1C7FFFh – 1C7000h
4KB
1C0FFFh – 1C0000h
4KB
32KB
64KB
32KB
128KB
(Sector 0)
32KB
64KB
32KB
01FFFFh – 01F000h
4KB
4KB
018FFFh – 018000h
017FFFh – 017000h
4KB
4KB
010FFFh – 010000h
00FFFFh – 00F000h
4KB
4KB
008FFFh – 008000h
007FFFh – 007000h
4KB
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
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
256 Bytes
•••
0017FFh
0016FFh
0015FFh
0014FFh
0013FFh
0012FFh
0011FFh
0010FFh
000FFFh
000EFFh
000DFFh
000CFFh
000BFFh
000AFFh
0009FFh
0008FFh
0007FFh
0006FFh
0005FFh
0004FFh
0003FFh
0002FFh
0001FFh
0000FFh
– 001700h
– 001600h
– 001500h
– 001400h
– 001300h
– 001200h
– 001100h
– 001000h
– 000F00h
– 000E00h
– 000D00h
– 000C00h
– 000B00h
– 000A00h
– 000900h
– 000800h
– 000700h
– 000600h
– 000500h
– 000400h
– 000300h
– 000200h
– 000100h
– 000000h
•••
•••
•••
4
AT26DF161
3599G–DFLASH–8/08
•••
•••
•••
•••
•••
•••