AT45DB321D_07 datasheet(39/55 Pages) ATMEL

部件名	AT45DB321D

功能描述	32-megabit 2.7-volt DataFlash

PDF	55 Pages

Scroll/Zoom	100%

制造商	ATMEL [ATMEL Corporation]

网页	http://www.atmel.com

标志

39 / 55 page

3597H–DFLASH–02/07

AT45DB321D [Preliminary]

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 (512/528 BYTES)

BUFFER 2 (512/528 BYTES)

BUFFER 1 (512/528 BYTES)

I/O INTERFACE

BUFFER 1 TO

MAIN MEMORY

PAGE PROGRAM

BUFFER 2 TO

MAIN MEMORY

PAGE PROGRAM

BUFFER 1

WRITE

BUFFER 2

WRITE

SI (INPUT)

CMD

Completes writing into selected buffer

X···X, BFA9-8

BFA7-0

n+1

Last Byte

BINARY PAGE SIZE

15 DON'T CARE + BFA8-BFA0

SI (INPUT)

CMD

PA12-6

PA5-0, XX

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

A21-A9 + 9 DON'T CARE BITS

AT45DB321D 数据表(PDF) 39 Page - ATMEL Corporation

AT45DB321D 数据表(HTML) 39 Page - ATMEL Corporation

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