AT45DB642D datasheet(41/58 Pages) ATMEL

Numer części	AT45DB642D

Szczegółowy opis	64-megabit 2.7-volt Dual-interface DataFlash

PDF	58 Pages

Scroll/Zoom	100%

Producent	ATMEL [ATMEL Corporation]

Strona internetowa	http://www.atmel.com

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41 / 58 page

3542K–DFLASH–04/09

AT45DB642D

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.

SI or I/O7 - I/O0

(INPUT)?

CMD

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

MSB

Page Address

(PA12 - PA0)

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

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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