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28F002BC Datasheet(PDF) 7 Page - Intel Corporation

Part # 28F002BC
Description  28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY
PDF  37 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

28F002BC Datasheet(HTML) 7 Page - Intel Corporation

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E
28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY
7
PRELIMINARY
Reprogrammable
systems,
such
as
personal
computers,
are
ideal
applications
for
the
28F002BC.
Portable
and
hand-held
personal
computer applications are becoming more complex
with the addition of power management software to
take
advantage
of
the
latest
microprocessor
technology,
the
availability
of
ROM-based
application software, pen tablet code for electronic
handwriting, and diagnostic code. Figure 1 shows
an example 28F002BC application.
The increase in software sophistication augments
the probability that a code update will be required
after the PC is shipped. The 28F002BC provides a
safe and inexpensive update solution for desktop,
notebook, and hand-held personal computers while
extending the product lifetime. Furthermore, the
deep power-down mode provides added flexibility
for those battery-operated portable designs that
require low power.
The 28F002BC is also an excellent design solution
for
analog
and
digital
cellular
phone
and
telecommunication switching applications requiring
high-performance, high-density storage in a small
form factor package (x8-only bus). The blocking
structure
allows
for
easy
segmentation
of
embedded code for modular software designs. For
example, the parameter block can be used for
frequently updated data storage and diagnostic
messages (e.g., phone numbers and authorization
codes).
1.4
Pinouts
The 28F002BC in the 44-lead PSOP pinout follows
the industry-standard ROM/EPROM pinout, as
shown in Figure 4. The 2-Mbit SmartVoltage pinout,
indicating the WP# input, is also shown in the same
diagram. The 40-lead TSOP package (shown in
Figure 2) offers the smallest form factor possible in
addition to being compatible with its SmartVoltage
upgrade in the same package. The low-cost 40-lead
PDIP package diagram is shown in Figure 3.
E28F002BC
BOOT BLOCK
40-LEAD TSOP
10 mm x 20 mm
TOP VIEW
32
31
30
29
28
27
26
25
24
23
22
21
33
34
35
36
37
38
39
40
20
19
17
18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
RP#
WE#
VPP
NC
RP#
WE#
VPP
WP#
NC
NC
28F002BV
28F002BV
A 12
A 16
A 15
A 14
A 13
A 11
A 9
A 8
A 8
A 9
A 11
A 12
A 13
A 14
A 15
A 16
A
CE#
OE#
GND
GND
NC
NC
NC
VCC
VCC
A0
A17
A10
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
CE#
OE#
GND
GND
NC
NC
NC
VCC
VCC
A0
A17
A10
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A 3
A 2
A 1
7
A 6
A 5
A 4
A
A 3
A 2
A 1
7
A 6
A 5
A 4
0578_02
Figure 2. The 40-Lead TSOP Offers the Smallest Form Factor for Space-Constrained Applications



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