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AT45DB041D Datasheet(PDF) 39 Page - List of Unclassifed Manufacturers

Part # AT45DB041D
Description  4-megabit 2.5-volt or 2.7-volt DataFlash
PDF  53 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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AT45DB041D Datasheet(HTML) 39 Page - List of Unclassifed Manufacturers

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39
3595T–DFLASH–8/2013
AT45DB041D
22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
22.1 Buffer Write
22.2 Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
FLASH MEMORY ARRAY
PAGE (256-/264-BYTES)
BUFFER 1 (256-/264-BYTES)
I/O INTERFACE
SI
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 1
WRITE
BUFFER 2 (256-/264-BYTES)
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2
WRITE
SI (INPUT)
CMD
Completes writing into selected buffer
CS
X
X···X, BFA8
BFA7-0
n
n+1
Last Byte
BINARY PAGE SIZE
16 DON'T CARE + BFA7-BFA0
SI (INPUT)
CMD
PA10-7
PA6-0, X
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
A18-A8 + 8 DON'T CARE BITS



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