AT45DB321D_09 datasheet(40/57 Pages) ATMEL

Part #	AT45DB321D

Description	32-megabit 2.7-volt DataFlash

PDF	57 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

Logo

40 / 57 page

3597N–DFLASH–04/09

AT45DB321D

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 Datasheet(PDF) 40 Page - ATMEL Corporation

AT45DB321D Datasheet(HTML) 40 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

Datasheet Download

Link URL