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AT45DB321D Datasheet(PDF) 34 Page - List of Unclassifed Manufacturers

Part # AT45DB321D
Description  32Mb, 2.5V or 2.7V DataFlash
PDF  52 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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AT45DB321D Datasheet(HTML) 34 Page - List of Unclassifed Manufacturers

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AT45DB321D [DATASHEET]
3597T–DFLASH–11/2013
Figure 19-3. Command Sequence for Read/Write Operations for a 512-Byte Page Size
(Except Status Register Read, Manufacturer, and Device ID Read)
Figure 19-4. Command Sequence for Read/Write Operations for a 528-Byte Page Size
(Except Status Register Read, Manufacturer, and Device ID Read)
20.
Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
Figure 20-1. Block Diagram
SI (INPUT)
CMD
8-bits
8-bits
8-bits
Page address
(A21 - A9)
X X
X X X X X
X X X X X X X X X
LSB
X X X X X X X X
Byte/Buffer address
(A8 - A0/BFA8 - BFA0)
MSB
Don’t care
bits
Page address
(PA12 - PA0)
Byte/Buffer address
(BA9 - BA0/BFA9 - BFA0)
SI (INPUT)
CMD
8-bits
8-bits
8-bits
X X X XX X X X
X X X X
LSB
X X X X X X X X
MSB
1 Don’t care
bit
X X X X
Flash Memory Array
Page (512-/528-bytes)
Buffer 2 (512-/528-bytes)
Buffer 1 (512-/528-bytes)
I/O Interface
SI
Buffer 1 to
Main Memory
Page Program
Buffer 2 to
Main Memory
Page Program
Buffer 1
WRITE
Buffer 2
WRITE



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