S29AL016D90TFI02 Spansion Inc., S29AL016D90TFI02 Datasheet - Page 20

• Manufacturer Part Number: S29AL016D90TFI02
• Manufacturer: Spansion Inc.

Specifications of S29AL016D90TFI02

• Cell Type: NOR
• Density: 16Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 21/20Bit
• Operating Supply Voltage (typ): 3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Program/erase Volt (typ): 2.7 to 3.6V
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 8/16Bit
• Number Of Words: 2M/1M
• Supply Current: 35mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Compliant

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 46
Notes
1. All protected sectors unprotected.
2. All previously protected sectors are protected once again.
shows the timing diagrams, for this feature.
Figure 7.1 Temporary Sector Unprotect Operation
S29AL016D
D a t a
Unprotect Completed
Program Operations
Temporary Sector
Perform Erase or
RESET# = V
RESET# = V
(Note 1)
(Note 2)
START
S h e e t
ID
IH
ID
. During this mode, formerly protected
Figure 7.1
S29AL016D_00_A8 February 27, 2009
shows the algorithm, and
ID
is removed from the