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AT45DB321C 데이터시트(PDF) 27 Page - ATMEL Corporation

부품명 AT45DB321C
상세설명  32-megabit 2.7 volt DataFlash
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT45DB321C 데이터시트(HTML) 27 Page - ATMEL Corporation

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3387L–DFLASH–6/06
AT45DB321C
15. Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
15.1
Main Memory Page Read
15.2
Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
15.3
Buffer Read
FLASH MEMORY ARRAY
PAGE (528 BYTES)
BUFFER 2 (528 BYTES)
BUFFER 1 (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
SI
CMD
PA5-0, BA9-8
BA7-0
X
XXX
CS
n
n+1
SO
r , PA12-6
SI
CMD
PA5-0, XX
X
Starts reading page data into buffer
CS
SO
r , PA12-6
SI
CMD
X
X···X, BFA9-8
BFA7-0
CS
n
n+1
SO
X
Each transition represents
8 bits and 8 clock cycles
n = 1st byte read
n+1 = 2nd byte read



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