AT45DB642D-TU datasheet(48/55 Pages) ATMEL

Part #	AT45DB642D-TU

Description	64-megabit 2.7-volt Dual-interface DataFlash

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Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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48 / 55 page

48

3542F–DFLASH–09/06

AT45DB642D

25.4

Status Register Read (Opcode: D7H)

26. Auto Page Rewrite Flowchart

Figure 26-1. Algorithm for Programming or Reprogramming of the Entire Array Sequentially

Notes:

1. This type of algorithm is used for applications in which the entire array is programmed sequentially, filling the array page-by-

page.

2. A page can be written using either a Main Memory Page Program operation or a Buffer Write operation followed by a Buffer

to Main Memory Page Program operation.

3. The algorithm above shows the programming of a single page. The algorithm will be repeated sequentially for each page

within the entire array.

I/O7-I/O0

(INPUT)

CMD

CS

I/O7-I/O0

(OUTPUT)

CLK

1

23

HIGH

IMPEDANCE

X

DATA

STATUS REGISTER

OUTPUT

tSU

tV

DATA

0

START

MAIN MEMORY PAGE PROGRAM

THROUGH BUFFER

(82H, 85H)

END

provide address

and data

BUFFER WRITE

(84H, 87H)

BUFFER TO MAIN

MEMORY PAGE PROGRAM

(83H, 86H)

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AT45DB642D-TU Datasheet(PDF) 48 Page - ATMEL Corporation

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