PCMCIA Flash Memory Card
FLB Series
White Electronic Designs
2 MEGABYTE through 40 MEGABYTE (AMD based)
FEATURES
ARCHITECTURE OVERVIEW
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Low cost High Density Linear Flash Card
WEDC’s 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 theAm29F080 (8Mb) orAm29F016 (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.
Supports 5V only systems
Based on AMD Flash Components
• low standby power without entering reset mode
• allows standard access from standby mode
Fast Read Performance
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• 150ns Maximum Access Time
x8/ x16 Data Interface
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High Performance Random Writes
• 10µs Typical Word Write Time
Automated Write and Erase Algorithms
• AMD Command Set
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 multiplexingA0, 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.
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100,000 Erase Cycles per Block
64K word symmetrical Block Architecture
PC Card Standard Type I Form Factor
GENERAL DESCRIPTION
WEDC’s 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.
WEDC’s standard cards are shipped with WEDC’s
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.
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 FLAseries is based onAMD 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.
Auguat 2000
Rev. 3
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com