at25df641 ATMEL Corporation, at25df641 Datasheet - Page 28
at25df641
Manufacturer Part Number
at25df641
Description
At25df641 64-megabit 2.7-volt Minimum Spi Serial Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
1.AT25DF641.pdf
(58 pages)
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28
AT25DF641 [Preliminary]
Table 9-4.
Note:
Table 9-5.
WP
0
0
1
1
(Don't Care)
1. “n” represents a sector number
SPRL
WP
X
0
1
0
1
Sector Protection Register States
Hardware and Software Locking
Hardware
Software
Locking
Locked
Locked
SPRL Change Allowed
Can be modified from 0 to 1
Locked
Can be modified from 0 to 1
Can be modified from 1 to 0
Sector Protection Register
n
0
1
(1)
Sector Protection Registers
Unlocked and modifiable using the
Protect and Unprotect Sector commands.
Global Protect and Unprotect can also be
performed.
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and Unprotect
cannot be performed.
Unlocked and modifiable using the
Protect and Unprotect Sector commands.
Global Protect and Unprotect can also be
performed.
Locked in current state. Protect and
Unprotect Sector commands will be
ignored. Global Protect and Unprotect
cannot be performed.
Unprotected
Protected
3680B–DFLASH–2/08
Sector
n
(1)