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AT25DF081A-MH-B Datasheet(PDF) 5 Page - ATMEL Corporation |
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AT25DF081A-MH-B Datasheet(HTML) 5 Page - ATMEL Corporation |
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5 / 53 page  5 8715B–SFLSH–8/10 Atmel AT25DF081A [Preliminary] 4. Memory Array To provide the greatest flexibility, the memory array of the Atmel® AT25DF081A 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, of which each sector 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 1-256 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 Address Block Address 32KB 32KB 64KB (Sector 0) Range Range 32KB 32KB 64KB (Sector 15) 64KB 32KB 32KB 64KB (Sector 14) 64KB |
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