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 AT5FC008. This allows OEM manufacturers of

portable system to eliminate the weight, power consumption and

reliability issues associated with electro-mechanical disk-based

systems. The AT5FC008 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

AT5FC008 is suitable for the emerging "mobile" personal sys-

tems.

The AT5FC008 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.

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 AT5FC008 contains a separate 2K

byte 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.

S0

ADDRESS

BUFFERS

AND

DECODERS

I/O

TRANSCEIVERS

AND BUFFERS

WP

AT29C040

AT29C040

S2

S3

S1

V

CC

V

CC

V

CC

V

CC

V

CC

V

CC

GND

CD

1

BVD

1

CD

2

CARD DETECT

BATTERY VOLTAGE

DETECT

BVD

2

CE

CE

CE

CE

A0-A18

A0-A18

DEVICE

A0-A18

A1-A22

SYSTEM

A0

WRITE

PROTECT

SWITCH

CE

2

CE

1

REG

CEH

CEH

7

CEL

CEL

7

D8-D15

D0-D7

OE

OE

OE

OE

D0-D15

D8-D15

D0-D7

OE

OE

WE

WE

WP

R

R

R

R

V

CC

V

CC

V

CC

V

CC

WE

WE

WE

WE

OE

WE

S15

V

SS

V

SS

V

SS

V

SS

V

SS

CE

OE

WE

CE

S14

V

CC

V

SS

CE

OE

WE

A0-A18

A0-A18

D8-D15

D0-D7

A0-A18

A0-A18

D8-D15

A0-A10

D0-D7

D0-D7

R

ATTRIBUTE

MEMORY

Block Diagram

2

AT5FC008