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參數(shù)資料
| 型號： | IMC004FLSA |
| 廠商： | Intel Corp. |
| 英文描述： | SERIES 2 FLASH MEMORY CARDS iMC002FLSA, iMC004FLSA, iMC010FLSA, iMC020FLSA |
| 中文描述： | 系列2記憶卡iMC002FLSA，iMC004FLSA，iMC010FLSA，iMC020FLSA |
| 文件頁數(shù)： | 5/39頁 |
| 文件大?。?/td> | 548K |
| 代理商： | IMC004FLSA |
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SERIES 2 FLASH MEMORY CARDS
APPLICATIONS
Intel’s second generation Series 2 Flash Memory
Cards facilitate high performance disk emulation for
the storage of data files and application programs on
a purely solid-state removable medium. File man-
agement software, Flash Translation Layer (FTL), in
conjunction with the Series 2 Flash Memory Cards,
enable the design of high-performance light-weight
notebook, palmtop, and pen-based PCs that have
the processing power of today’s desktop computers.
Application software stored on the flash memory
card substantially reduces the slow disk-to-DRAM
download process. Replacing the mechanical disk
results in a dramatic enhancement of read perform-
ance and substantial reduction of power consump-
tion, size and weightDconsiderations particularly
important in portable PCs and equipment. The Se-
ries 2 Card’s high performance read access time al-
lows the use of Series 2 Cards in an ‘‘execute-in-
place’’ (XIP) architecture. XIP eliminates redundancy
associated with DRAM/Disk memory system archi-
tectures. Operating systems stored in Flash Memory
decreases system boot or program load times, en-
abling the design of PCs that boot, operate, store
data files and execute application programs from/to
nonvolatile memory without losing the ability to per-
form an update.
File management systems modify and store data
files by allocating flash memory space intelligently.
Wear leveling algorithms, employed to equally dis-
tribute the number of rewrite cycles, ensure that no
particular block is cycled excessively relative to oth-
er blocks. This provides hundreds of thousands of
hours of power on usage.
This file management software enables the user to
interact with the flash memory card in precisely the
same way as a magnetic disk.
Series 2 Flash Memory Cards provide durable non-
volatile memory storage for mobile PCs on the road,
facilitating simple transfer back into the desktop en-
vironment.
For systems currently using a static RAM/battery
configuration for data acquisition, the Series 2 Flash
Memory Card’s nonvolatility eliminates the need for
battery backup. The concern for battery failure no
longer exists, an important consideration for porta-
ble computers and medical instruments, both requir-
ing continuous operation. Series 2 Cards consume
no power when the system is off, and only 60
m
A in
Deep-Sleep mode (2 Megabyte card). Furthermore,
Flash Memory Cards offer a considerable cost and
density advantage over memory cards based on
static RAM with battery backup.
Besides disk emulation, the Series 2 Card’s electri-
cal block-erasure, data writability, and inherent non-
volatility fit well with data accumulation and record-
ing needs. Electrical block-erasure provides design
flexibility to selectively rewrite blocks of data, while
saving other blocks for infrequently updated param-
eters and lookup tables. For example, networks and
systems that utilize large banks of battery-backed
DRAM to store configuration and status benefit from
the Series 2 Flash Card’s nonvolatility and reliability.
SERIES 2 ARCHITECTURE
OVERVIEW
The Series 2 Flash Memory Card contains a 2 to 20
Megabyte Flash Memory array consisting of 2 to 20
28F008SA
FlashFile
Memory
28F008SA contains sixteen individually-erasable, 64
Kbyte blocks; therefore, the Flash Memory Card
contains from 32 to 320 device blocks. It also con-
tains two Card Control Logic devices that manage
the external interface, address decoding, and com-
ponent management logic. (Refer to Figure 1 for a
block diagram.)
devices.
Each
To support PCMCIA-compatible word-wide access,
devices are paired so that each accessible memory
block is 64 KWords (see Figure 2). Card logic allows
the system to write or read one word at a time, or
one byte at a time by referencing the high or low
byte. Erasure can be performed on the entire block
pair (high and low device blocks simultaneously), or
on the high or low byte portion separately.
Also in accordance with PCMCIA specifications this
product supports byte-wide operation, in which the
flash array is divided into 128K x 8 bit device blocks.
In this configuration, odd bytes are multiplexed onto
the low byte data bus.
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
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| IMC01GR | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:IM Series Signal Relays |
| IMC01TS | 制造商:MA-COM 制造商全稱:M/A-COM Technology Solutions, Inc. 功能描述:IM Series Signal Relays |
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