PCMCIA Flash Memory Card
FLB Series
PCMCIA Flash Memory Card
General Description
WEDC鈥檚 PCMCIA Flash memory cards offer high
density linear Flash solid state storage solutions for
code and data storage, high performance disk
emulation and execute in place (XIP) applications in
mobile PC and dedicated (embedded) equipment.
Packaged in PCMCIA type I housing, each card
contains a connector, an array of Flash memories
packaged in TSOP packages and card control logic.
The card control logic provides the system interface
and controls the internal Flash memories. Combined
with file management software, such as Flash
Translation Layer (FTL), WEDC Flash cards provide
removable high-performance disk emulation.
The WEDC FLA series is based on AMD Flash
memories. The FLB series offers byte wide and word
wide
operation,
low
power
modes
and
Card
Information Structure (CIS) for easy identification of
card characteristics.
Note:
Standard options include attribute memory. Cards
without attribute memory are available. Cards are also
available with or without a hardware write protect
switch.
2 MEGABYTE through 40 MEGABYTE (AMD based)
Features
鈥?/div>
Low cost High Density Linear Flash Card
鈥?Supports 5V only systems
鈥ased on AMD Flash Components
-low standby power without entering reset mode
-allows standard access from standby mode
鈥ast Read Performance
- 150ns Maximum Access Time
鈥?x8/ x16 Data Interface
鈥?High Performance Random Writes
- 10碌s Typical Word Write Time
鈥?Automated Write and Erase Algorithms
- AMD Command Set
鈥?100,000 Erase Cycles per Block
鈥?64K word symmetrical Block Architecture
鈥?PC Card Standard Type I Form Factor
Architecture Overview
WEDC鈥檚 FLB series is designed to support from two to twenty (see Block diagram) 8Mb or 16MB components,
providing a wide range of density options. Cards are based on the Am29F080 (8Mb) or Am29F016 (16Mb) devices
for 5V only applications. Devices codes for the Am29F080 and Am29F016 are D5H and ADH respectively.
Systems should be able to recognize both codes. Cards utilizing the 8Mb components provide densities ranging
from 2MB to 20MB in 2MB increments, cards utilizing 16Mb components provide densities ranging from 4MB to
40MB in 4MB increments.
In support of the PC Card 95 standard for word wide access devices are paired. Therefore, the Flash array is
structured in 64K word blocks. Write, read and block erase operations can be performed as either a word or byte
wide operation . By multiplexing A0, CE1# and CE2#, 8-bit hosts can access all data on data lines DQ0 - DQ7. The
FLB series cards conform with the PC Card Standard (formerly PCMCIA) and supported JEIDA, providing
electrical and physical compatibility. The PC Card form factor offers an industry standard pinout and mechanical
outline, allowing density upgrades without system design changes.
WEDC鈥檚 standard cards are shipped with WEDC鈥檚 silkscreen design. Cards are also available with blank housings
(no silkscreen). 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.
August 2000 Rev. 3 - ECO #13126
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