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AT45DB021D Datasheet(PDF) 36 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) 36 Page - List of Unclassifed Manufacturers

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36
3638M–DFLASH–5/2013
AT45DB021D
Figure 17-11. Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)
18.
Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
Figure 18-1. Main Memory Page Read
SI (INPUT)
CMD
PA9-7
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
A17-A8 + 8 DON'T CARE BITS
FLASH MEMORY ARRAY
PAGE (256/264 BYTES)
BUFFER (256/264 BYTES)
I/O INTERFACE
MAIN MEMORY
PAGE TO
BUFFER
MAIN MEMORY
PAGE READ
BUFFER
READ
SO
SI (INPUT)
CMD
PA9-7
PA6-0, BA8
X
CS
n
n+1
SO (OUTPUT)
BA7-0
4 Dummy Bytes
X
ADDRESS FOR BINARY PAGE SIZE
A17-A16
A15-A8
A7-A0



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