at25df041a ATMEL Corporation, at25df041a Datasheet - Page 22

• Manufacturer Part Number: at25df041a
• Description: 4-megabit 2.3-volt Or 2.7-volt Minimum Spi Serial Flash Memory
• Manufacturer: ATMEL Corporation

22
AT25DF041A [Preliminary]
Table 9-5.
WP
0
0
1
1
SPRL
0
1
0
1
Hardware and Software Locking
Hardware
Software
Locking
Locked
Locked
Can be modified from 0 to 1
Locked
Can be modified from 0 to 1
Can be modified from 1 to 0
SPRL Change Allowed
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.
3668C–DFLASH–3/08