DT28F800F3B95 Intel, DT28F800F3B95 Datasheet - Page 30

• Manufacturer Part Number: DT28F800F3B95
• Manufacturer: Intel

Specifications of DT28F800F3B95

• Density: 8Mb
• Access Time (max): 95ns
• Interface Type: Parallel
• Boot Type: Bottom
• Address Bus: 19b
• Operating Supply Voltage (typ): 3/3.3V
• Operating Temp Range: -40C to 85C
• Package Type: SSOP
• Sync/async: Async/Sync
• 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: 60mA
• Mounting: Surface Mount
• Pin Count: 56
• Lead Free Status / Rohs Status: Not Compliant

28F800F3—Automotive
5.0
5.1
5.2
5.3
24
Table 9.
Data Protection
The 3 Volt Fast Boot Block Flash memory architecture features two hardware-lockable parameter
blocks, so critical code can be kept secure while six other parameter blocks can be programmed or
erased as necessary to facilitate EEPROM emulation.
V
The V
flash device. When V
error, prompting the corresponding status register bit (SR.3) to be set.
WP# = V
The lockable blocks are locked when WP# = V
block will result in an error, which will be reflected in the status register. For top configuration, the
top two parameter blocks (blocks #21, #22) and all main blocks are lockable. For the bottom
configuration, the bottom two parameter blocks (blocks #0, #1) and all main blocks are lockable.
Unlocked blocks can be programmed or erased normally (unless V
WP# = V
WP# controls all block locking and V
defines the write protection methods.
Write Protection Truth Table
PP
PP
V
V
V
V
X
PPLK
PPLK
PP
IL
programming voltage can be held low for complete write protection of all blocks in the
V
PPLK
IL
IH
for Block Locking
for Block Unlocking
for Complete Protection
PP
is below V
WP#
V
V
X
X
IH
IL
PPLK
PP
, any block erase or program operation will result in a
provides protection against spurious writes.
RST#
V
V
V
V
IH
IH
IH
IL
IL
; any block erase or program operation to a locked
Write Protection Provided
Lockable Blocks Locked
All Blocks Unlocked
All Blocks Locked
All Blocks Locked
PP
is below V
PPLK
PRELIMINARY
Table 9
).