參數(shù)資料
型號(hào)： IMC024FLSG
廠商： INTEL CORP
元件分類： DRAM
英文描述： 5 V Series 200 Flash Memory Card(5V系列200閃速存儲(chǔ)器插卡)
中文描述： 16M X 16 FLASH 5V PROM CARD, 200 ns, XMA
封裝： PC CARD
文件頁(yè)數(shù)： 5/35頁(yè)
文件大?。?/td> 217K
代理商： IMC024FLSG
E
1.0
iMC008/016/024/032/048/064FLSG
5
PRELIMINARY
SCOPE OF DOCUMENT
This datasheet describes an Intel StrataFlash
memory
card
architecture,
characteristics and command definitions. Refer to
the
5 Volt
Intel
StrataFlash Memory; 28F320J5
and 28F640J5
datasheet, order number 290606.
AC
and
DC
2.0
PRODUCT OVERVIEW
The Intel 5 Volt Value Series 200 family of flash
memory PC Cards offers a lowest cost selection of
memory card products ranging in memory density
from 8- to 64-Mbytes. Each card contains a flash
memory array made up of Intel StrataFlash
memory components. The 8-, 16-, 24-, or 32-
Mbyte cards consist of between two and eight
4-Mbyte components (Intel
28F320J5) configured
for x16 (word-wide) operation. The 48- or 64-
Mbyte
cards
consist
components (Intel
28F640J5) also configured for
x16 (word-wide) operation. Intel StrataFlash
memory can store more than one bit per flash
memory cell, reducing the size and cost of large
flash memory arrays. Figure 1 presents a 8-Mbyte
card block diagram as an example illustration of
the functional layout and user interface of a 5 Volt
Value Series 200 card.
of
multiple
8-Mbyte
A Command User Interface (CUI) serves as the
interface between the system processor and
internal operation of the card’s memory device(s).
A valid command sequence written to the CUI
initiates device automation. An internal Write State
Machine (WSM) automatically executes the
algorithms and timings necessary for block erase,
write, and lock-bit configuration operations.
Each
incorporates a 16-word (32-byte) write buffer. This
dramatically improves write performance by
optimizing a flash memory device’s programming
algorithm, thereby freeing the CPU from writing
data and polling status on a word-by-word basis.
The 32-byte buffer can be loaded at full bus
speed; then a single command can be issued to
transfer the buffer into the flash memory array.
While the Write State Machine (WSM) is handling
all of the flash memory programming details for a
memory write operation, the host CPU is free to
perform other tasks.
Intel
StrataFlash
memory
device
The 28F640J5 or E28F320J5 components forming
a card’s memory array each contain 64/32
separate 128-Kbyte erase blocks. The number of
erase blocks on a card range from 64 erase blocks
for a 8-Mbyte card to 512 erase blocks for a 64-
Mbyte card. A block erase operation erases one of
the 128-Kbyte blocks typically within one second—
independent of other blocks. Each block can be
independently erased 10,000 times. Block erase
suspend mode allows system software to suspend
block erase to read data from or write data to any
other block.
3.0
CARD ARCHITECTURE
The 5 Volt Value Series 200 Flash Memory PC
Card implements the functionality of the PCMCIA
PC Card Specification with X16 (word-wide) data
transfers. The card does not support individual 8-
bit (byte) wide memory data transfers as the card’s
memory devices(s) and data bus interface are
structured word-wide.
Various information about the card is contained in
a Card Information Structure (CIS) as defined in
the PCMCIA PC Card Specification. The CIS is
stored in Block 0 of the card’s memory array. The
high byte of the CIS is always FFH, the low byte
contains the actual CIS data.
The Card information Structure (CIS) for the 5 Volt
Value Series 200 card is stored in Block 0 of the
flash memory to reduce the attribute memory cost
overhead of an EEPROM or ASIC. In embedded
applications, a CIS may not be required by the
system and the entire memory array can be used
by the system.
The CIS is stored in Block 0 of the flash memory
to reduce the attribute memory cost overhead of
an EEPROM or ASIC. In embedded applications,
a CIS may not be required by the system and the
entire memory array can be used by the system.
3.1
Card Signal Description
The signals for the 5 Volt Value Series 200 Flash
Memory PC Card are listed in Table 1. They
comply with the
PC Card Specification
.
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