TE28F008xxx Intel Corporation, TE28F008xxx Datasheet - Page 21

• Manufacturer Part Number: TE28F008xxx
• Description: (TE28F Series) 3 Volt Advanced Boot Block Flash Memory
• Manufacturer: Intel Corporation

3.3.2
3.4
3.4.1
3.5
3UHOLPLQDU\
Warning:
Table 8. Write Protection Truth Table for the Advanced Boot Block Flash Memory Family
WP# = V
WP# = V
These blocks can now be programmed or erased.
Note that RP# does not override WP# locking as in previous Boot Block devices. WP# controls all
block locking and V
protection methods.
V
Intel
For customers requiring fast programming in their manufacturing environment, 3 Volt Advanced
Boot Block includes an additional low-cost 12 V programming feature.
The 12 V V
found in manufacturing processes; however, it is not intended for extended use. 12 V may be
applied to V
blocks and 2500 cycles on the parameter blocks. V
hours maximum.
Stressing the device beyond these limits may cause permanent damage.
During read operations or idle times, V
operations, a 5 V supply is not permitted. The V
11.4 V–12.6 V during program and erase operations.
V
The V
flash device. When V
prompting the corresponding status register bit (SR.3) to be set.
Power Consumption
Intel Flash devices have a tiered approach to power savings that can significantly reduce overall
system power consumption. The Automatic Power Savings (APS) feature reduces power
consumption when the device is selected but idle. If the CE# is deasserted, the flash enters its
standby mode, where current consumption is even lower. The combination of these features can
minimize memory power consumption, and therefore, overall system power consumption.
PP
PP
V
V
V
V
X
PPLK
PPLK
®
PP
IL
= V
PP
3 Volt Advanced Boot Block products provide in-system programming and erase at 2.7 V.
Program and Erase Voltages
programming voltage can be held low for complete write protection of all blocks in the
IH
IL
IH
PP
unlocks all lockable blocks.
PP
WP#
for Complete Protection
V
V
mode enhances programming performance during the short period of time typically
X
X
for Block Unlocking
during program and erase operations for a maximum of 1000 cycles on the main
IH
IL
28F004/400B3, 28F008/800B3, 28F016/160B3, 28F320B3, 28F640B3
PP
PP
provides protection against spurious writes.
RP#
is below V
V
V
V
V
IH
IH
IH
IL
All Blocks Locked
All Blocks Locked
Lockable Blocks Locked
All Blocks Unlocked
Write Protection Provided
PPLK
PP
, any program or erase operation will result in a error,
may be tied to a 5 V supply. For program and erase
PP
PP
must be supplied with either 2.7 V–3.6 V or
may be connected to 12 V for a total of 80
Table 8
defines the write
15