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AT25DF641 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers |
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AT25DF641 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers |
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6 / 56 page  6 AT25DF641 3680F–DFLASH–4/10 3. Memory Array To provide the greatest flexibility, the memory array of the AT25DF641 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 3-1. Memory Architecture Diagram Internal Sectoring for 64KB 32KB 4KB 1-256 Byte Protection, Lockdown, Block Erase Block Erase Block Erase Page Program and Suspend Functions (D8h Command) (52h Command) (20h Command) (02h Command) 4KB 7FFFFFh – 7FF000h 256 Bytes 7FFFFFh – 7FFF00h 4KB 7FEFFFh– 7FE000h 256 Bytes 7FFEFFh– 7FFE00h 4KB 7FDFFFh – 7FD000h 256 Bytes 7FFDFFh – 7FFD00h 4KB 7FCFFFh– 7FC000h 256 Bytes 7FFCFFh– 7FFC00h 4KB 7FBFFFh – 7FB000h 256 Bytes 7FFBFFh – 7FFB00h 4KB 7FAFFFh – 7FA000h 256 Bytes 7FFAFFh – 7FFA00h 4KB 7F9FFFh – 7F9000h 256 Bytes 7FF9FFh – 7FF900h 4KB 7F8FFFh – 7F8000h 256 Bytes 7FF8FFh – 7FF800h 4KB 7F7FFFh – 7F7000h 256 Bytes 7FF7FFh – 7FF700h 4KB 7F6FFFh – 7F6000h 256 Bytes 7FF6FFh – 7FF600h 4KB 7F5FFFh – 7F5000h 256 Bytes 7FF5FFh – 7FF500h 4KB 7F4FFFh – 7F4000h 256 Bytes 7FF4FFh – 7FF400h 4KB 7F3FFFh – 7F3000h 256 Bytes 7FF3FFh – 7FF300h 4KB 7F2FFFh – 7F2000h 256 Bytes 7FF2FFh – 7FF200h 4KB 7F1FFFh – 7F1000h 256 Bytes 7FF1FFh – 7FF100h 4KB 7F0FFFh – 7F0000h 256 Bytes 7FF0FFh – 7FF000h 4KB 7EFFFFh– 7EF000h 256 Bytes 7FEFFFh– 7FEF00h 4KB 7EEFFFh– 7EE000h 256 Bytes 7FEEFFh– 7FEE00h 4KB 7EDFFFh – 7ED000h 256 Bytes 7FEDFFh – 7FED00h 4KB 7ECFFFh– 7EC000h 256 Bytes 7FECFFh– 7FEC00h 4KB 7EBFFFh– 7EB000h 256 Bytes 7FEBFFh– 7FEB00h 4KB 7EAFFFh – 7EA000h 256 Bytes 7FEAFFh – 7FEA00h 4KB 7E9FFFh – 7E9000h 256 Bytes 7FE9FFh – 7FE900h 4KB 7E8FFFh – 7E8000h 256 Bytes 7FE8FFh – 7FE800h 4KB 7E7FFFh – 7E7000h 4KB 7E6FFFh – 7E6000h 4KB 7E5FFFh – 7E5000h 4KB 7E4FFFh – 7E4000h 256 Bytes 0017FFh – 001700h 4KB 7E3FFFh – 7E3000h 256 Bytes 0016FFh – 001600h 4KB 7E2FFFh – 7E2000h 256 Bytes 0015FFh – 001500h 4KB 7E1FFFh – 7E1000h 256 Bytes 0014FFh – 001400h 4KB 7E0FFFh – 7E0000h 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 64KB 32KB 32KB Range Range Page Program Detail Page Address Block Address 64KB 64KB (Sector 127) Block Erase Detail 32KB 32KB 64KB (Sector 0) 32KB 32KB 64KB (Sector 126) |
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