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參數(shù)資料
| 型號： | 28F001BX |
| 廠商： | Intel Corp. |
| 英文描述： | 5 V Boot Block Flash Memory(5 V引導(dǎo)塊閃速存儲器) |
| 中文描述： | 5伏啟動塊閃存（5伏引導(dǎo)塊閃速存儲器） |
| 文件頁數(shù)： | 5/39頁 |
| 文件大?。?/td> | 648K |
| 代理商： | 28F001BX |
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E
1.0 APPLICATIONS
28F001BX
5
The Intel
28F001BX Flash Boot Block memory
augments the nonvolatility, in-system electrical
erasure and reprogrammability of Intel’s flash
memory by offering four separately erasable
blocks and integrating a state machine to control
erase and program functions. The specialized
blocking architecture and automated programming
of the 28F001BX provide a full-function, non-
volatile flash memory ideal for a wide range of
applications, including PC boot/BIOS memory,
minimum-chip embedded program memory and
parametric data storage. The 28F001BX combines
the safety of a hardware-protected 8-Kbyte boot
block with the flexibility of three separately
reprogrammable blocks (two 4-Kbyte parameter
blocks and one 112-Kbyte code block) into one
versatile, cost-effective flash memory. Additionally,
reprogramming one block does not affect code
stored in another block, ensuring data integrity.
The flexibility of flash memory reduces costs
throughout the life cycle of a design. During the
early stages of a system’s life, flash memory
reduces prototype development and testing time,
allowing the system designer to modify in-system
software electrically versus manual removal of
components. During production, flash memory
provides
flexible
firmware
configuration, reducing system inventory and
eliminating unnecessary handling and less reliable
socketed connections. Late in the life cycle, when
software updates or code “bugs” are often
unpredictable and costly, flash memory reduces
update costs by allowing the manufacturers to
send floppy updates versus a technician.
Alternatively,
remote
communication link are possible at speeds up to
9600
baud
due
to
programming time.
for
just-in-time
updates
over
a
flash
memory’s
fast
Reprogrammable environments, such as the
personal computer, are ideal applications for the
28F001BX. The internal state machine provides
SRAM-like timings for program and erasure, using
the command and status registers. The blocking
scheme allows BIOS update in the main and
parameter blocks, while still providing recovery
code in the boot block in the unlikely event a
power failure occurs during an update, or where
BIOS code is corrupted. Parameter blocks also
provide convenient configuration storage, backing
up SRAM and battery configurations. EISA
systems, for example, can store hardware
configurations in a flash parameter block, reducing
system SRAM.
Laptop BIOS are becoming increasingly complex
with the addition of power management software
and extended system setup screens. BIOS code
complexity increases the potential for code
updates after the sale, but the compactness of
laptop designs makes hardware updates very
costly. Boot block flash memory provides an
inexpensive update solution for laptops, while
reducing laptop obsolescence. For portable PCs
and hand-held equipment, the deep power-down
mode
dramatically
lowers
requirements during periods of slow operation or
sleep modes.
system
power
The 28F001BX gives the embedded system
designer several desired features. The internal
state machine reduces the size of external code
dedicated to the erase and program algorithms, as
well
as
freeing
the
microprocessor to respond to other system
requests during program and erasure. The four
blocks allow logical segmentation of the entire
embedded software: the 8-Kbyte block for the boot
code, the 112-Kbyte block for the main program
code and the two 4-Kbyte blocks for updatable
parametric data storage, diagnostic messages and
data, or extensions of either the boot code or
program code. The boot block is hardware
protected against unauthorized write or erase of its
vital code in the field. Further, the power-down
mode also locks out erase or write operations,
providing absolute data protection during system
power-up or power loss. This hardware protection
provides obvious advantages for safety related
applications such as transportation, military, and
medical. The 28F001BX is well suited for
minimum-chip embedded applications ranging
from communications to automotive.
microcontroller
or
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 28F002BC | 28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY |
| 28F002BV-B | 2-MBIT SmartVoltage BOOT BLOCK FLASH MEMORY FAMILY |
| 28F004B3 | 3 Volt Advanced Boot Block Flash Memory(3 V,4M位高級引導(dǎo)塊閃速存儲器) |
| 28F004S3 | BYTE-WIDE SMART 3 FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
| 28F004S5 | BYTE-WIDE SMART 5 FlashFile MEMORY FAMILY 4, 8, AND 16 MBIT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 28F001BX-B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:1-MBIT (128K x 8) BOOT BLOCK FLASH MEMORY |
| 28F001BX-T | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:1-MBIT (128K x 8) BOOT BLOCK FLASH MEMORY |
| 28F001BX-T/28F001BX-B/28F001BN-T/BN-B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:28F001BX-T/28F001BX-B/28F001BN-T/BN-B |
| 28F001BX-T/B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:28F001BX-T/B |
| 28F002BC | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:28F002BC 2-MBIT (256K X 8) BOOT BLOCK FLASH MEMORY |
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