SRA01-SRA04
White Electronic Designs
PCMCIA SRAM Memory Card — SRA Series
SRAM MEMORY CARD 256KB THROUGH 8MB
FEATURES
GENERAL DESCRIPTION
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High Performance SRAM memory Card
The WEDC SRAM Series (SRA) memory cards offer a
high performance nonvolatile storage solution for code
and data storage, disk caching, and write intensive mobile
and embedded applications.
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Single 5 Volt Supply
• (3.3V/5V operation is available as an option)
Fast Access times: 150ns
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Packaged in PCMCIA type I or type II housing (type II
for cards with extended battery backup time), the WEDC
SRAM SRAseries is based on 1 or 4Mbit SRAM memories,
providing densities from 256 Kilobytes to 8 Megabytes.
x8/x16 PCMCIA standard interface
Low Power CMOS technology provides very low
power and reliable data retention characteristics
The SRA series of SRAM memory cards requires a 5V
power supply and operates at speeds to 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.
• standby current < 100µA typical
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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
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 flat housing. Please contact
WEDC sales representative for further information on
Custom artwork.
– 18 months - type II card
typical based on 4MB (lower
densities will have greater storage
times)
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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
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February 2002
Rev. 6
1
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com