TE28F800B3T90 Intel, TE28F800B3T90 Datasheet - Page 62

• Manufacturer Part Number: TE28F800B3T90
• Manufacturer: Intel

Specifications of TE28F800B3T90

• Cell Type: NOR
• Density: 8Mb
• Access Time (max): 90ns
• Interface Type: Parallel
• Boot Type: Top
• Address Bus: 19b
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: TSOP
• Sync/async: Asynchronous
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 3.6V
• Word Size: 16b
• Number Of Words: 512K
• Supply Current: 18mA
• Mounting: Surface Mount
• Pin Count: 48
• Lead Free Status / Rohs Status: Not Compliant

28F008/800B3, 28F016/160B3, 28F320B3, 28F640B3
12.0
12.1
12.2
Note:
Table 32.
18 Aug 2005
62
Block Locking
The B3 flash memory device architecture features two hardware-lockable parameter blocks.
WP# = V
The lockable blocks are locked when WP# = V
block results in an error, which is reflected in the Status Register:
Unlocked blocks can be programmed or erased normally (unless V
WP# = V
WP# = V
RP# does not override WP# locking for the B3 flash memory device, as in previous Boot Block
devices.
Table 32
Write-Protection Truth Table for the B3 Device Family
≥ V
≥ V
•
•
•
•
V
V
For top configuration, the top two parameter blocks are lockable:
For the bottom configuration, the bottom two parameter blocks are lockable. These are blocks
#0 and #1 for 4, 8 , 16, 32, and 64 Mbit.
WP# controls all block locking.
V
X
PPLK
PPLK
PP
IL
— blocks #133 and #134 for 64 Mbit
— blocks #69 and #70 for 32 Mbit
— blocks #37 and #38 for 16 Mbit
— blocks #21 and #22 for 8 Mbit
— blocks #13 and #14 for 4 Mbit
PP
provides protection against spurious writes.
defines the write- protection methods.
IH
unlocks all lockable blocks. These blocks can now be programmed or erased.
WP#
IL
IH
V
V
X
X
Intel
IH
IL
for Block Locking
for Block Unlocking
®
Order Number: 290580, Revision: 020
Advanced Boot Block Flash Memory (B3)
RP#
V
V
V
V
IH
IH
IH
IL
All Blocks Locked
All Blocks Locked
Lockable Blocks Locked
All Blocks Unlocked
Write Protection Provided
IL
; any program or Erase operation to a locked
PP
is below V
PPLK
).
Datasheet