AT45DB642D
21.10Command Sequence for Read/Write Operations for Page Size 1024-Bytes (Except Status Register Read, Manufacturer and Device ID Read)
SI or I/O7 - I/O0 |
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CMD |
8 bits |
8 bits |
8 bits |
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(INPUT)? |
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MSB |
X X X X X X X |
X X X X |
X X X X |
X X X X X X X X |
LSB |
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Page Address |
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Byte/Buffer Address |
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(A22 - A10) |
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(A9 - A0/BFA9 - BFA0) |
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21.11Command Sequence for Read/Write Operations for Page Size 1056-Bytes (Except Status Register Read, Manufacturer and Device ID Read)
SI or I/O7 - I/O0 |
CMD |
8 bits |
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8 bits |
8 bits |
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(INPUT)? |
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MSB |
X X X X |
X X X X |
X X X X |
X X X X |
X X X X X X X X |
LSB |
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Page Address |
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Byte/Buffer Address |
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(PA12 - PA0) |
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(BA10 - BA0/BFA10 - BFA0) |
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22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
FLASH MEMORY ARRAY
PAGE (1024-/1056-BYTES)
BUFFER 1 TO |
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BUFFER 2 TO |
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MAIN MEMORY |
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MAIN MEMORY |
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PAGE PROGRAM |
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PAGE PROGRAM |
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BUFFER 1 (1024-/1056-BYTES) |
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BUFFER 2 (1024-/1056-BYTES) |
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BUFFER 1 |
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BUFFER 2 |
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WRITE |
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WRITE |
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I/O INTERFACE |
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SI |
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I/O7 - I/O0 |
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3542M–DFLASH–11/2012