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AT45DB021D Datasheet(PDF) 35 Page - List of Unclassifed Manufacturers

Part # AT45DB021D
Description  2-megabit 2.7V Minimum DataFlash
PDF  48 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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AT45DB021D Datasheet(HTML) 35 Page - List of Unclassifed Manufacturers

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35
3638M–DFLASH–5/2013
AT45DB021D
Figure 17-8. Command Sequence for Read/Write Operations for Page Size 264-Bytes (Except Status Register
Read, Manufacturer and Device ID Read)
Figure 17-9. Write Operations
The following block diagram and waveforms illustrate the various write sequences available
Figure 17-10. Buffer Write
Page Address
(PA9 - PA0)
Byte/Buffer Address
(BA8 - BA0/BFA8 - BFA0)
SI (INPUT)
CMD
8-bits
8-bits
8-bits
X X X X X
X X X X
X X X
LSB
X X X X X X X X
MSB
5 Don’t Care
Bits
X X X X
FLASH MEMORY ARRAY
PAGE (256-/264 BYTES)
BUFFER (256-/264-BYTES)
I/O INTERFACE
SI
BUFFER TO
MAIN MEMORY
PAGE PROGRAM
BUFFER
WRITE
SI (INPUT)
CMD
Completes writing into the buffer
CS
X
X···X, BFA8
BFA7-0
n
n+1
Last Byte
BINARY PAGE SIZE
16 DON'T CARE + BFA7-BFA0



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