參數(shù)資料
型號(hào)： P28F002BC-T80
廠商： INTEL CORP
元件分類(lèi)： PROM
英文描述： 28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY
中文描述： 256K X 8 FLASH 12V PROM, 80 ns, PDIP40
封裝： PLASTIC, DIP-40
文件頁(yè)數(shù)： 7/37頁(yè)
文件大?。?/td> 455K
代理商： P28F002BC-T80
E
Reprogrammable systems, such as personal
computers,
are
ideal
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
application software, pen tablet code for electronic
handwriting, and diagnostic code. Figure 1 shows
an example 28F002BC application.
28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY
7
PRELIMINARY
applications
for
the
of
ROM-based
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
telecommunication switching applications requiring
high-performance, high-density storage in a small
form factor package (x8-only bus). The blocking
structure
allows
for
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).
cellular
phone
and
easy
segmentation
of
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
15
16
RP#
V
NC
WE#
NC
A
A
6
A
5
A
4
RP#
V
PP
WP#
NC
A
A
6
A
5
A
4
WE#
28F002BV
28F002BV
A
12
A
11
A
9
A
8
A
16
A
15
A
14
A
13
A
8
A
9
A
11
A
12
A
13
A
14
A
15
A
16
CE#
A
0
OE#
GND
GND
NC
NC
DQ
3
DQ
2
DQ
1
DQ
0
NC
A
10
DQ
7
DQ
6
DQ
5
DQ
4
V
CC
V
CC
A
17
CE#
A
0
OE#
GND
GND
NC
NC
DQ
3
DQ
2
DQ
1
DQ
0
NC
A
10
DQ
7
DQ
6
DQ
5
DQ
4
V
CC
V
CC
A
17
A
3
A
2
A
1
7
A
3
A
2
A
1
7
0578_02
Figure 2. The 40-Lead TSOP Offers the Smallest Form Factor for Space-Constrained Applications
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