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White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
SRV01-SRV04
February 2007
Rev. 2
GENERAL DESCRIPTION
The WEDC SRAM Series (SRV) memory cards offer a
high performance nonvolatile storage solution for code
and data storage, disk caching, and write intensive mobile
and embedded applications.
Packaged in PCMCIA type I or type II housing (type II for
cards with extended battery backup time and 8MB cards),
the WEDC SRAM SRV series is based on 1 or 4Mbit
SRAM memories, providing densities from 256 Kilobytes
to 8 Megabytes.
The SRV series of SRAM memory cards is a universal
3V/ 5V power supply and operates at speeds as high
as 150ns. The cards are based on advanced CMOS
technology providing very low power and reliable data
retention characteristics. WEDC’s SRAM cards contain
a rechargeable lithium battery and recharge circuitry,
eliminating the need for replaceable batteries found in
many SRAM cards.
WEDC’s standard cards are shipped with WEDC’s SRAM
Logo. Cards are also available with blank housings
(no Logo). The blank housings are available in both a
recessed (for label) and at housing. Please contact
WEDC sales representative for further information on
Custom artwork.
FEATURES
High Performance SRAM memory Card
Universal 3.3 to 5 Volt Supply allows for wider
compatibility between systems.
Fast Access times: 150ns @ 5V
250ns @ 3.3V
x8/x16 PCMCIA standard interface
Low Power CMOS technology provides very low
power and reliable data retention characteristics
Standby current < 100μA typical
Rechargeable Lithium battery with recharge
circuitry
eliminates the need for replaceable batteries
standby current during recharge typically < 2mA
battery backup time
– 7 months - type I card
– 18 months - type II card
typical based on 4MB (lower
densities will have greater storage
times)
Unlimited write cycles, no endurance issues
Optional Features:
2KB EEPROM attribute memory containing CIS
Optional Hardware Write Protect switch
PC Card Standard Type I or Type II Form Factor
PCMCIA SRAM MEMORY CARD — SRV SERIES
SRAM Memory Card 256KB Through 8MB