AT45DB642D-CNU-SL954 ATMEL [ATMEL Corporation], AT45DB642D-CNU-SL954 Datasheet - Page 40

• Manufacturer Part Number: AT45DB642D-CNU-SL954
• Description: 64-megabit 2.7-volt Dual-interface DataFlash
• Manufacturer: ATMEL [ATMEL Corporation]

21.10 Command Sequence for Read/Write Operations for Page Size 1024 Bytes (Except Status
21.11 Command Sequence for Read/Write Operations for Page Size 1056 Bytes (Except Status
22. Write Operations
The following block diagram and waveforms illustrate the various write sequences available.
40
Register Read, Manufacturer and Device ID Read)
Register Read, Manufacturer and Device ID Read)
AT45DB642D
SI or I/O7 - I/O0
SI or I/O7 - I/O0
MSB
(INPUT)?
MSB
(INPUT)?
BUFFER 1 (1024/1056 BYTES)
PAGE PROGRAM
MAIN MEMORY
PAGE (1024/1056 BYTES)
BUFFER 1 TO
X X X X X X X X
BUFFER 1
Page Address
(PA12 - PA0)
X X X X X X X
WRITE
Page Address
CMD
(A22 - A10)
SI
CMD
FLASH MEMORY ARRAY
X X X X X X X X
8 bits
X X X X X X X X
I/O INTERFACE
8 bits
8 bits
(BA10 - BA0/BFA10 - BFA0)
8 bits
Byte/Buffer Address
BUFFER 2 (1024/1056 BYTES)
(A9 - A0/BFA9 - BFA0)
I/O7 - I/O0
Byte/Buffer Address
8 bits
X X X X X X X X
8 bits
X X X X X X X X
BUFFER 2 TO
MAIN MEMORY
PAGE PROGRAM
BUFFER 2
WRITE
LSB
LSB
3542H–DFLASH–4/08