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AT45DB642D データシート(PDF) 41 Page - ATMEL Corporation

部品番号 AT45DB642D
部品情報  64-megabit 2.7-volt Dual-interface DataFlash
PDF  58 Pages
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メーカー  ATMEL [ATMEL Corporation]
ホームページ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT45DB642D データシート(HTML) 41 Page - ATMEL Corporation

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41
3542K–DFLASH–04/09
AT45DB642D
21.10 Command Sequence for Read/Write Operations for Page Size 1024 Bytes (Except Status
Register Read, Manufacturer and Device ID Read)
21.11 Command Sequence for Read/Write Operations for Page Size 1056 Bytes (Except Status
Register Read, Manufacturer and Device ID Read)
22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
SI or I/O7 - I/O0
(INPUT)?
CMD
8 bits
8 bits
8 bits
Page Address
(A22 - A10)
X X X X X X X
X X X X X X X X
LSB
X X X X X X X X
Byte/Buffer Address
(A9 - A0/BFA9 - BFA0)
MSB
SI or I/O7 - I/O0
(INPUT)?
CMD
8 bits
8 bits
8 bits
MSB
Page Address
(PA12 - PA0)
X X X X X X X X
X X X X X X X X
LSB
X X X X X X X X
Byte/Buffer Address
(BA10 - BA0/BFA10 - BFA0)
FLASH MEMORY ARRAY
PAGE (1024/1056 BYTES)
BUFFER 2 (1024/1056 BYTES)
BUFFER 1 (1024/1056 BYTES)
I/O INTERFACE
SI
BUFFER 1 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 1
WRITE
BUFFER 2
WRITE
I/O7 - I/O0



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