AT25DF321A datasheet(28/58 Pages) ATMEL

부품명	AT25DF321A

상세설명	32-Megabit 2.7-volt Minimum SPI Serial Flash Memory

PDF	58 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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28 / 58 page

3686C–DFLASH–12/08

AT25DF321A [Preliminary]

Note:

1. “n” represents a sector number

Table 9-4.

Sector Protection Register States

Sector Protection Register

n(1)

Sector

n(1)

(Don't Care)

Unprotected

1Protected

Table 9-5.

Hardware and Software Locking

SPRL

Locking

SPRL Change Allowed

Sector Protection Registers

Can be modified from 0 to 1

Unlocked and modifiable using the

Protect and Unprotect Sector commands.

Global Protect and Unprotect can also be

performed.

Hardware

Locked

Locked in current state. Protect and

Unprotect Sector commands will be

ignored. Global Protect and Unprotect

cannot be performed.

Can be modified from 0 to 1

Unlocked and modifiable using the

Protect and Unprotect Sector commands.

Global Protect and Unprotect can also be

performed.

Software

Locked

Can be modified from 1 to 0

Locked in current state. Protect and

Unprotect Sector commands will be

ignored. Global Protect and Unprotect

cannot be performed.

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