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PA28F002BC-T80 데이터시트 PDF




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부품번호 PA28F002BC-T80 기능
기능 28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY
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PA28F002BC-T80 데이터시트, 핀배열, 회로
E
PRELIMINARY
28F002BC 2-MBIT (256K X 8)
BOOT BLOCK FLASH MEMORY
n High Performance Read
80/120 ns Max Access Time
40 ns Max. Output Enable Time
n Low Power Consumption
20 mA Typical Read Current
n x8-Only Input/Output Architecture
Space-Constrained 8-bit
Applications
n Optimized Array Blocking Architecture
One 16-KB Protected Boot Block
Two 8-KB Parameter Blocks
One 96-KB Main Block
One 128-KB Main Block
Top Boot Location
n Hardware Data Protection Feature
Erase/Write Lockout during Power
Transitions
Absolute Hardware Protection for
Boot Block
n Software EEPROM Emulation with
Parameter Blocks
n Extended Cycling Capability
100,000 Block Erase Cycles
n Automated Byte Write and Block Erase
n Industry-Standard Command User
Interface
Status Registers
Erase Suspend Capability
n SRAM-Compatible Write Interface
n Reset/Deep Power-Down Input
0.2 µA ICC Typical
Provides Reset for Boot Operations
n Industry-Standard Surface Mount
Packaging
40-Lead TSOP
44-Lead PSOP
40-Lead PDIP
n ETOX™ IV Flash Technology
5V Read
n 12V Write and Block Erase
VPP = 12V ±5% Standard
VPP = 12V ±10% Option
n Independent Software Vendor Support
Intel’s 2-Mbit flash memory is an extension of the Boot Block architecture which includes block-selective
erasure, automated write and erase operations, and a standard microprocessor interface. The 2-Mbit flash
memory enhances the Boot Block architecture by adding more density and blocks, x8 input/output control,
very high-speed, low-power, and industry-standard ROM-compatible pinout and surface mount packaging.
The Intel 28F002BC is an 8-bit wide flash memory offering. This high-density flash memory provides user-
selectable bus operation for 8-bit applications. The 28F002BC is a 2,097,152-bit nonvolatile memory
organized as 262,144 bytes of information. It is offered in 44-lead PSOP, 40- lead PDIP and 40-lead TSOP
package, which is ideal for space-constrained portable systems or any application with board space
limitations.
This device uses an integrated Command User Interface (CUI) and Write State Machine (WSM) for simplified
byte write and block erasure. The 28F002BC provides block locations compatible with Intel’s MCS®-186
family, 80286, 90860CA, and the Intel386™, Intel486™, Pentium®, and Pentium Pro microprocessors.
The boot block includes a data protection feature to protect the boot code in critical applications. With a
maximum access time of 80 ns, this high-performance 2-Mbit flash memory interfaces at zero wait-state to a
wide range of microprocessors and microcontrollers. A deep power-down mode lowers the total VCC power
consumption to 1 µW typical. This power savings is critical in hand-held battery powered systems. For very
low-power applications using a 3.3V supply, refer to the Intel 28F002BV-T/B 2-Mbit SmartVoltage Boot Block
Flash Memory datasheet. Manufactured on Intel’s 0.6 micron ETOX™ IV process technology, the 28F002BC
flash memory provides world-class quality, reliability, and cost-effectiveness at the 2-Mbit density.
October 1996
Order Number: 290578-003




PA28F002BC-T80 pdf, 반도체, 판매, 대치품
28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY
Number
-001
-002
-003
REVISION HISTORY
Item
Original version
Pin 2 of 44-Lead PSOP changed from DU to NC
Alternate program command (10H) removed
WSM transition table added
40-Lead PDIP package added
E
4 PRELIMINARY

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PA28F002BC-T80 전자부품, 판매, 대치품
E
28F002BC 2-MBIT BOOT BLOCK FLASH MEMORY
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.
28F002BV
A 16
A 15
A 14
A 13
A 12
A 11
A9
A8
WE#
RP#
VPP
WP#
NC
A7
A6
A5
A4
A3
A2
A1
A
A
16
15
A 14
A 13
A 12
A 11
A9
WAE#8
RP#
VPP
NC
NC
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
E28F002BC
BOOT BLOCK
40-LEAD TSOP
10 mm x 20 mm
TOP VIEW
28F002BV
40 A17 A17
39 GND GND
38 NC NC
37 NC NC
36 A10 A10
35 DQ7 DQ7
34 DQ6 DQ6
33 DQ5 DQ5
32 DQ4 DQ4
31 VCC VCC
30 VCC VCC
29 NC NC
28 DQ3 DQ3
27 DQ2 DQ2
26 DQ1 DQ1
25 DQ0 DQ0
24 OE# OE#
23 GND GND
22 CE# CE#
21 A0 A0
0578_02
Figure 2. The 40-Lead TSOP Offers the Smallest Form Factor for Space-Constrained Applications
PRELIMINARY
7

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PA28F002BC-T80

28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY

Intel Corporation
Intel Corporation

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