AT25DF021 Просмотр технического описания (PDF) - Atmel Corporation
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AT25DF021 Datasheet PDF : 41 Pages
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AT25DF021
Figure 4-1. Memory Architecture Diagram
Block Erase Detail
Internal Sectoring for
Sector Protection
Function
64KB
(Sector 3)
64KB
(Sector 2)
64KB
32KB
4KB
Block Erase
Block Erase
Block Erase
(D8h Command) (52h Command) (20h Command)
Block Address
Range
64KB
32KB
32KB
64KB
32KB
32KB
4KB
03FFFFh – 03F000h
4KB
03EFFFh – 03E000h
4KB
03DFFFh – 03D000h
4KB
03CFFFh – 03C000h
4KB
03BFFFh – 03B000h
4KB
03AFFFh – 03A000h
4KB
039FFFh – 039000h
4KB
038FFFh – 038000h
4KB
037FFFh – 037000h
4KB
036FFFh – 036000h
4KB
035FFFh – 035000h
4KB
034FFFh – 034000h
4KB
033FFFh – 033000h
4KB
032FFFh – 032000h
4KB
031FFFh – 031000h
4KB
030FFFh – 030000h
4KB
02FFFFh – 02F000h
4KB
02EFFFh – 02E000h
4KB
02DFFFh – 02D000h
4KB
02CFFFh – 02C000h
4KB
02BFFFh – 02B000h
4KB
02AFFFh – 02A000h
4KB
029FFFh – 029000h
4KB
028FFFh – 028000h
4KB
027FFFh – 027000h
4KB
026FFFh – 026000h
4KB
025FFFh – 025000h
4KB
024FFFh – 024000h
4KB
023FFFh – 023000h
4KB
022FFFh – 022000h
4KB
021FFFh – 021000h
4KB
020FFFh – 020000h
64KB
(Sector 0)
64KB
32KB
32KB
4KB
00FFFFh – 00F000h
4KB
00EFFFh – 00E000h
4KB
00DFFFh – 00D000h
4KB
00CFFFh – 00C000h
4KB
00BFFFh – 00B000h
4KB
00AFFFh – 00A000h
4KB
009FFFh – 009000h
4KB
008FFFh – 008000h
4KB
007FFFh – 007000h
4KB
006FFFh – 006000h
4KB
005FFFh – 005000h
4KB
004FFFh – 004000h
4KB
003FFFh – 003000h
4KB
002FFFh – 002000h
4KB
001FFFh – 001000h
4KB
000FFFh – 000000h
Page Program Detail
1-256 Byte
Page Program
(02h Command)
Page Address
Range
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
03FFFFh – 03FF00h
03FEFFh – 03FE00h
03FDFFh – 03FD00h
03FCFFh – 03FC00h
03FBFFh – 03FB00h
03FAFFh – 03FA00h
03F9FFh – 03F900h
03F8FFh – 03F800h
03F7FFh – 03F700h
03F6FFh – 03F600h
03F5FFh – 03F500h
03F4FFh – 03F400h
03F3FFh – 03F300h
03F2FFh – 03F200h
03F1FFh – 03F100h
03F0FFh – 03F000h
03EFFFh – 03EF00h
03EEFFh – 03EE00h
03EDFFh – 03ED00h
03ECFFh – 03EC00h
03EBFFh – 03EB00h
03EAFFh – 03EA00h
03E9FFh – 03E900h
03E8FFh – 03E800h
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 – 001700h
0016FFh – 001600h
0015FFh – 001500h
0014FFh – 001400h
0013FFh – 001300h
0012FFh – 001200h
0011FFh – 001100h
0010FFh – 001000h
000FFFh – 000F00h
000EFFh – 000E00h
000DFFh – 000D00h
000CFFh – 000C00h
000BFFh – 000B00h
000AFFh – 000A00h
0009FFh – 000900h
0008FFh – 000800h
0007FFh – 000700h
0006FFh – 000600h
0005FFh – 000500h
0004FFh – 000400h
0003FFh – 000300h
0002FFh – 000200h
0001FFh – 000100h
0000FFh – 000000h
5
3677D–DFLASH–04/09
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