TE28F008BE-B120 データシートの表示（PDF） - Intel
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TE28F008BE-B120 Datasheet PDF : 58 Pages
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E
8-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY
1.0 PRODUCT FAMILY OVERVIEW
This datasheet contains the specifications for the
two branches of products in the SmartVoltage
8-Mbit boot block flash memory family: the -BE/CE
suffix products feature a low VCC operating range
of 2.7 V–3.6 V; the -BV/CV suffix products offer
3.0 V–3.6 V operation. Both BE/CE and BV/CV
products also operate at 5 V for high-speed
access times. Throughout this datasheet, the
28F800 refers to all x8/x16 8-Mbit products, while
28F008B refers to all x8 8-Mbit boot block
products (but not to the 28F008SA FlashFile™
memory). Also, the term “2.7 V” generally means
the full voltage range 2.7 V–3.6 V. Section 1.0
provides an overview of the flash memory family
including applications, pinouts and pin
descriptions. Sections 2.0 and 3.0 describe the
memory organization and operation for these
products. Section 4.0 contains the family’s
operating specifications. Finally, Sections 5.0 and
6.0 provide ordering and document reference
information.
1.1 New Features in the
SmartVoltage Products
The new 8-Mbit SmartVoltage boot block flash
memory family provides a convenient density
upgrade path from the 2-Mbit and 4-Mbit boot
block products. The 8-Mbit boot block functions
similarly to lower density boot block products in
both command sets and operation, providing
similar pinouts to ease density upgrades.
To upgrade from lower density -BX/BL-suffix 12 V
program products, please note the following
differences and guidelines:
• WP# pin has replaced DU (Don’t Use) pin #12
in the 40-lead TSOP package. In the 44-lead
PSOP, DU pin #2 is replaced with A18 (see
Figure 1 and Section 3.4 for details). Connect
the WP# pin to control signal or to VCC or GND
(in this case, a logic-level signal can be placed
on DU pin #12 for 40-lead TSOP). See Tables
2 and 9 to see how the WP# pin works.
• 5 V program/erase operation has been added.
If switching VPP for write protection, switch to
GND (not 5 V) for complete write protection.
To take advantage of 5 V write-capability,
allow for connecting 5 V to VPP and
disconnecting 12 V from VPP line.
• Enhanced circuits optimize low VCC
performance, allowing operation down to
VCC = 2.7 V (using the BE/CE products).
To upgrade from lower density SmartVoltage boot
block products, the similar pinouts in the 40-lead
and 48-lead TSOP packages provide easy
upgrades by adding extra address lines (see
Figures 1 and 3). In the 44-lead TSOP, the WP#
pin on the 2-Mbit and 4-Mbit BV parts becomes
A18, removing the capability to unlock the boot
block with a logic-level signal in this package only.
The boot block can still be unlocked with 12 V on
RP# (see Figure 2 and Section 3.4 for details).
Product
Name
28F008BV-T/B
28F800BV-T/B
28F800CV-T/B
28F008BE-T/B
28F800CE-T/B
Table 1. SmartVoltage Provides Total Voltage Flexibility
Bus
Width
2.7 V–3.6 V
VCC
3.3 ± 0.3 V
5 V ± 5%
5 V ± 10%
VPP
5 V ± 10% 12 V ± 5%
x8
√
√
√
√
x8 or x16
√
√
√
√
x8 or x16
√
√
√
√
x8
√
√
√
√
x8 or x16
√
√
√
√
SEE NEW DESIGN RECOMMENDATIONS
5
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