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AT45DB321D Datasheet(PDF) 35 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) 35 Page - List of Unclassifed Manufacturers

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AT45DB321D [DATASHEET]
3597T–DFLASH–11/2013
Figure 20-2. Buffer Write
Figure 20-3. Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
21.
Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
Figure 21-1. Block Diagram
SI (INPUT)
CMD
Completes writing into selected buffer
CS
X
X···X, BFA9-8
BFA7-0
n
n+1
Last byte
Binary Page Size
15 don't care + BFA8-BFA0
SI (INPUT)
CMD
PA12-6
PA5-0, XX
CS
Starts self-timed erase/program operation
XXXX XX
Each transition
represents 8 bits
n = 1st byte read
n+1 = 2nd byte read
Binary Page Size
A21-A9 + 9 don't care bits
Flash Memory Array
Page (512-/528-bytes)
Buffer 2 (512-/528-bytes)
Buffer 1 (512-/528-bytes)
I/O Interface
Main Memory
Page to
Buffer 1
Main Memory
Page to
Buffer 2
Main Memory
Page Read
Buffer 1
Read
Buffer 2
Read
SO



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