PCMCIA Flash Memory Card
FVA Series
Value Series Flash Memory Card 2, 4, 8, 16 MEGABYTE (Intel/Sharp based )
General Description
Features
• Low cost Linear Flash Card
• Single 5 Volt Supply
The WEDC Value Series (FV) Flash memory cards
offers a low cost linear Flash solid state storage
solution for code and data storage, high performance
disk emulation, mobile PC and embedded
applications.
•Based on FlashFileTM Components
•Fast Read Performance
- 100ns or 150ns Maximum Access Time
The WEDC Value series is based on Intel/Sharp Flash
memories. Cards are based on the 28F008SA (8Mb),
28F008S5 (8Mb) or 28F016S5 (16Mb) devices whose
device codes are A2H, A6H and AAH respectively.
Systems should be able to recognize all three codes.
The symmetrically blocked architecture and single 5V
operation provides a cost effective, high performance,
nonvolatile storage solution. The PC Card form factor
offers an industry standard pinout and mechanical
outline, allowing density upgrades without system
design changes.
• x16 Data Interface
- Odd byte not accessible on Even byte
• High Performance Random Writes
- 10µs Typical Word Write Time
• Automated Write and Erase Algorithms
- Intel Command Set
• 50µA Typical Deep Power-Down
• 100,000 Erase Cycles per Block
• 64K word symmetrical Block Architecture
• PC Card Standard Type I Form Factor
The Value series is designed as a simple x16 linear
array of Flash devices. Two Flash devices in parallel
provide the lower and upper bytes for the 16 bit
access. The Value series does not provide access of
the ODD byte (D8 - D15) on the even byte data path
(D0 - D7).
Block Diagram
Busy 0-7
Device 7
Device 5
Device 6
Device 4
WEDC’s standard Value Series Flash Card is shipped
with no attribute memory or CIS (Card Information
Structure) information. An option for 2KB of attribute
memory with CIS information is available. The CIS
for the WEDC Value series may also be stored in
Block 0 (even bytes, D0 - D7 only) of the Flash
memory, this option is available by request only.
/WR
/RD
RDY/BSY
/CE1
ADDRESS BUS A1-A20
Device 2
Device 0
Device 3
Device 1
/CE2
/REG
/WE
/OE
ATTRIBUTE
MEMORY
28C16
A21
A22
Vcc
Vpp
Vpp
WEDC’s standard cards are shipped with WEDC’s
Logo. Cards are also available with blank housings
(no Logo). The blank housings are available in both a
recessed (for label) and flat housing. Please contact
WEDC sales representative for further information on
Custom artwork.
Vcc
Generator
DATA
D0-7
DATA
D8-15
Vpp1
Vpp2
VS1
open
VS2
Note: VPP Generator only required for cards using
28F008SA devices configuration above for 8MB
card using 8Mbit components.
1
August 2000 Rev. 3 - ECO #13134
PC Card Products