s29al016j Meet Spansion Inc., s29al016j Datasheet - Page 20

• Manufacturer Part Number: s29al016j
• Description: 16 Megabit 2 M X 8-bit/1 M X 16-bit Cmos 3.0 Volt-only Boot Sector Flash Memory
• Manufacturer: Meet Spansion Inc.

7.11
20
Temporary Sector Unprotect
This feature allows temporary unprotection of previously protected sectors to change data in-system. The
Sector Unprotect mode is activated by setting the RESET# pin to V
sectors can be programmed or erased by selecting the sector addresses. Once V
RESET# pin, all the previously protected sectors are protected again.
Figure 17.11 on page 48
Notes
1. All protected sectors unprotected.
2. All previously protected sectors are protected once again.
D a t a
shows the timing diagrams, for this feature.
Figure 7.2 Temporary Sector Unprotect Operation
S h e e t
S29AL016J
Unprotect Completed
( A d v a n c e
Program Operations
Temporary Sector
Perform Erase or
RESET# = V
RESET# = V
(Note 1)
(Note 2)
START
ID
IH
I n f o r m a t i o n )
ID
. During this mode, formerly protected
Figure 7.2
S29AL016J_00_05 May 23, 2008
shows the algorithm, and
ID
is removed from the