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AT45DB321D-TU 数据表(PDF) 41 Page - ATMEL Corporation

部件名 AT45DB321D-TU
功能描述  32-megabit 2.7-volt DataFlash
Download  57 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT45DB321D-TU 数据表(HTML) 41 Page - ATMEL Corporation

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41
3597N–DFLASH–04/09
AT45DB321D
23. Read Operations
The following block diagram and waveforms illustrate the various read sequences available.
23.1 Main Memory Page Read
23.2 Main Memory Page to Buffer Transfer (Data from Flash Page Read into Buffer)
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
SI (INPUT)
CMD
PA12-6
PA5-0, BA9-8
X
CS
n
n+1
SO (OUTPUT)
BA7-0
4 Dummy Bytes
X
ADDRESS FOR BINARY PAGE SIZE
A21-A16
A15-A8
A7-A0
Starts reading page data into buffer
SI (INPUT)
CMD
PA12-6
PA5-0, XX
CS
SO (OUTPUT)
XXXX XXXX
BINARY PAGE SIZE
A21-A9 + 9 DON'T CARE BITS


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