AT45DB081D_13 datasheet(39/53 Pages) AD

Part #	AT45DB081D

Description	8-megabit 2.5V or 2.7V DataFlash

PDF	53 Pages

Scroll/Zoom	100%

Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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39 / 53 page

3596O–DFLASH–1/2013

AT45DB081D

22. Write Operations

The following block diagram and waveforms illustrate the various write sequences available.

22.1 Buffer Write

22.2 Buffer to Main Memory Page Program (Data from Buffer Programmed into Flash Page)

FLASH MEMORY ARRAY

PAGE (256-/264-BYTES)

BUFFER 1 (256-/264-BYTES)

I/O INTERFACE

BUFFER 1 TO

MAIN MEMORY

PAGE PROGRAM

BUFFER 1

WRITE

BUFFER 2 (256-/264-BYTES)

BUFFER 2 TO

MAIN MEMORY

PAGE PROGRAM

BUFFER 2

WRITE

SI (INPUT)

CMD

Completes writing into selected buffer

X···X, BFA8

BFA7-0

n+1

Last Byte

BINARY PAGE SIZE

16 DON'T CARE + BFA7-BFA0

SI (INPUT)

CMD

PA10-7

PA6, X

Starts self-timed erase/program operation

XXXX XX

Each transition

represents 8 bits

n = 1st byte read

n+1 = 2nd byte read

BINARY PAGE SIZE

A19-A8 + 8 DON'T CARE BITS

AT45DB081D Datasheet(PDF) 39 Page - Analog Devices

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