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AT25DF256 датащи(PDF) 9 Page - Renesas Technology Corp

номер детали AT25DF256
подробное описание детали  256-Kbit, 1.65 V Minimum SPI Serial Flash Memory with Dual-Read Support
PDF  47 Pages
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производитель  RENESAS [Renesas Technology Corp]
домашняя страница  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

AT25DF256 датащи(HTML) 9 Page - Renesas Technology Corp

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DS-AT25DF256-035 Rev.G
Page 9
2024-01-08
© 2024 Renesas Electronics
AT25DF256 Datasheet
3.
Block Diagram
Figure 4. AT25DF256 Block Diagram
4.
Memory Array
To provide the greatest flexibility, the memory array of the AT25DF256 can be erased in three levels of granularity,
including a full-chip erase. The size of the erase blocks is optimized for both code and data storage applications,
allowing both code and data segments to reside in their own erase regions. Figure 5 shows each erase level.
Figure 5. Memory Architecture Diagram
32 kB
4 kB
1-256 Byte
Block Erase
Block Erase
Page Program
(52h Command)
(20h Command)
(02h Command)
4 kB
007000h – 007FFFh
256 Bytes
007F00h – 007FFFh
4 kB
006000h – 006FFFh
256 Bytes
007E00h – 007EFFh
4 kB
005000h – 005FFFh
256 Bytes
007D00h – 007DFFh
4 kB
004000h – 004FFFh
4 kB
003000h – 003FFFh
4 kB
002000h – 002FFFh
256 Bytes
000200h – 0002FFh
4 kB
001000h – 001FFFh
256 Bytes
000100h – 0001FFh
4 kB
000000h – 000FFFh
256 Bytes
000000h – 0000FFh
Block Erase Detail
Page Program Detail
Page Address
Block Address
Range
Range
32 kB



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