Instruction Manual

5
3600H–DFLASH–11/2012
AT26DF081A
Figure 4-1. Memory Architecture Diagram
Internal Sectoring fo
r
64KB 32KB 4KB 1-256 Byte
Sector Protection Block Erase Block Erase Block Erase Page Program
Function (D8h Command) (52h Command) (20h Command) (02h Command)
4KB
0FFFFFh 0FF000h 256 Bytes 0FFFFFh 0FFF00h
4KB
0FEFFFh 0FE000h 256 Bytes 0FFEFFh 0FFE00h
4KB
0FDFFFh 0FD000h 256 Bytes 0FFDFFh 0FFD00h
4KB
0FCFFFh 0FC000h 256 Bytes 0FFCFFh 0FFC00h
4KB
0FBFFFh 0FB000h 256 Bytes 0FFBFFh 0FFB00h
4KB
0FAFFFh 0FA000h 256 Bytes 0FFAFFh 0FFA00h
4KB
0F9FFFh 0F9000h 256 Bytes 0FF9FFh 0FF900h
4KB
0F8FFFh 0F8000h 256 Bytes 0FF8FFh 0FF800h
4KB
0F7FFFh 0F7000h 256 Bytes 0FF7FFh 0FF700h
4KB
0F6FFFh 0F6000h 256 Bytes 0FF6FFh 0FF600h
4KB
0F5FFFh 0F5000h 256 Bytes 0FF5FFh 0FF500h
4KB
0F4FFFh 0F4000h 256 Bytes 0FF4FFh 0FF400h
4KB
0F3FFFh 0F3000h 256 Bytes 0FF3FFh 0FF300h
4KB
0F2FFFh 0F2000h 256 Bytes 0FF2FFh 0FF200h
4KB
0F1FFFh 0F1000h 256 Bytes 0FF1FFh 0FF100h
4KB
0F0FFFh 0F0000h 256 Bytes 0FF0FFh 0FF000h
4KB
0EFFFFh 0EF000h 256 Bytes 0FEFFFh 0FEF00h
4KB
0EEFFFh 0EE000h 256 Bytes 0FEEFFh 0FEE00h
4KB
0EDFFFh 0ED000h 256 Bytes 0FEDFFh 0FED00h
4KB
0ECFFFh 0EC000h 256 Bytes 0FECFFh 0FEC00h
4KB
0EBFFFh 0EB000h 256 Bytes 0FEBFFh 0FEB00h
4KB
0EAFFFh 0EA000h 256 Bytes 0FEAFFh 0FEA00h
4KB
0E9FFFh 0E9000h 256 Bytes 0FE9FFh 0FE900h
4KB
0E8FFFh 0E8000h 256 Bytes 0FE8FFh 0FE800h
4KB
0E7FFFh 0E7000h
4KB
0E6FFFh 0E6000h
4KB
0E5FFFh 0E5000h
4KB
0E4FFFh 0E4000h 256 Bytes 0017FFh 001700h
4KB
0E3FFFh 0E3000h 256 Bytes 0016FFh 001600h
4KB
0E2FFFh 0E2000h 256 Bytes 0015FFh 001500h
4KB
0E1FFFh 0E1000h 256 Bytes 0014FFh 001400h
4KB
0E0FFFh 0E0000h 256 Bytes 0013FFh 001300h
256 Bytes 0012FFh 001200h
256 Bytes 0011FFh 001100h
256 Bytes 0010FFh 001000h
4KB
00FFFFh 00F000h 256 Bytes 000FFFh 000F00h
4KB
00EFFFh 00E000h 256 Bytes 000EFFh 000E00h
4KB
00DFFFh 00D000h 256 Bytes 000DFFh 000D00h
4KB
00CFFFh 00C000h 256 Bytes 000CFFh 000C00h
4KB
00BFFFh 00B000h 256 Bytes 000BFFh 000B00h
4KB
00AFFFh 00A000h 256 Bytes 000AFFh 000A00h
4KB
009FFFh 009000h 256 Bytes 0009FFh 000900h
4KB
008FFFh 008000h 256 Bytes 0008FFh 000800h
4KB
007FFFh 007000h 256 Bytes 0007FFh 000700h
4KB
006FFFh 006000h 256 Bytes 0006FFh 000600h
4KB
005FFFh 005000h 256 Bytes 0005FFh 000500h
4KB
004FFFh 004000h 256 Bytes 0004FFh 000400h
4KB
003FFFh 003000h 256 Bytes 0003FFh 000300h
4KB
002FFFh 002000h 256 Bytes 0002FFh 000200h
4KB
001FFFh 001000h 256 Bytes 0001FFh 000100h
4KB
000FFFh 000000h 256 Bytes 0000FFh 000000h
64KB
Block Erase Detail Page Program Detail
Page AddressBlock Address
32KB
32KB
64KB
(Sector 0)
Range
Range
32KB
32KB
32KB
(Sector 18)
8KB
(Sector 17)
8KB
(Sector 16)
16KB
(Sector 15)
64KB
32KB
32KB
64KB
(Sector 14)
64KB