AT5FC004 Datasheet, PDF (2/15 Pages) ATMEL Corporation – 4-Megabyte Flash Memory PCMCIA Card

Description
Atmel’s Flash Memory Card provides the highest system level
performance for data and file storage solutions to the portable
PC market segment. Data files and applications programs can be
stored on the AT5FC004. This allows OEM manufacturers of
portable system to eliminate the weight, power consumption and
reliability issues associated with electro-mechanical disk-based
systems. The AT5FC004 requires a single voltage power supply
for total system operation. No batteries are needed for data re-
tention due to its Flash-based technology. Since no high voltage
(12 V) is required to perform any write operation, the
AT5FC004 is suitable for the emerging "mobile" personal sys-
tems.
The AT5FC004 is compatible with the 68-pin PCMCIA/JEIDA
international standard. Atmel’s Flash Memory Cards can be
read in either a byte-wide or word-wide mode which allows for
flexible integration into various system platforms. It can be read
like any typical PCMCIA SRAM or ROM card.
Block Diagram
The Card Information Structure (CIS) can be written by the
OEM or by Atmel at the attribute memory address space using a
format utility. The CIS appears at the beginning of the card’s
attribute memory space and defines the low-level organization
of data on the PC card. The AT5FC004 contains a separate
2 Kbyte EEPROM memory for the card’s attribute memory
space.
The third party software solutions such as AWARD Software’s
CardWare™ system and the SCM’s Flash File System (FFS),
enables Atmel’s Flash Memory Card to emulate the function of
essentially all the major brand personal computers that are
DOS/Windows compatible.
For some unique portable computers, such as the
HP200/100/95LX series, the software Driver and Formatter are
also available. The Atmel Driver and Formatter utilizes a self-
contained spare sector replacement algorithm, enabled by At-
mel’s small 512-byte sectors, to achieve long term card
reliability and endurance.
2
AT5FC004