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Alesis Synthesizer 512k memory


 

Alesis Synthesizer 512k memory

512K PC Card SRAM with 8K Attribute - Removable Battery
List Price: $99.00
Our Price: $72.00
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Product Code: SKU16528
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Description
 

Alesis Synthesizer 512k memory

Designed with the dual back-up battery system featuring a replaceable but non-rechargeable 3V lithium battery (primary battery) and an on-board rechargeable but non-replaceable battery (secondary battery) for data retention. This design allows replacement of primary battery without data loss for approximately 20 minutes. These replaceable battery models have access times of 200ns and a broad range of PCMCIA SRAM PC Card capacities.

Compatible with all Alesis QuadraSynth and QS-series synthesizers with PCMCIA card slots, including the Alesis QuadraSynth, QuadraSynth Plus Piano, QS6, QS6.1, QS7, QS7.1, QS8, QS8.1 and QSR models. Normally used for the storage of extra banks of patches and mixes.

These SRAM cards feature a built in lithium ion battery that recharges when inserted into a PC Card slot. Depending on the capacity of the card, the batteries in these SRAM memory cards can go between seven to twelve months before requiring recharge. These fixed battery models have improved access times of 150ns and a broader range of capacities

The cards are compatible with nearly all known PCMCIA SRAM PC Card applications and feature a write protect switch for preventing inadvertent erasure. The card's rigid stainless steel construction withstands harsh environmental conditions.
Features
  • CE Approved
  • Hot insertion and removal
  • PCMCIA Version 2.1/JEIDA 4.1 Compliant
  • Optional 2 Kbytes EEPROM Attribute Memory
  • Type I Form Factor with stainless steel case for rugged construction and ESD protection
  • Fully compatible in applications for PC, PDA, Application Specific Instrumentation
  • Write protect switch to prevent accidental overwriting
  • Onboard rechargeable L-ION battery for date retention
  • 150 nanosecond fast read/write access time
  • Static Operation, No Clock Required
  • plastic storage case included
  • removable battery
Memory Type
  • Static Random-Access Memory
Access Time
  • 150 nanoseconds
Physical Dimensions
  • PCMCIA Type I Enclosure: 85.6mm (L) x 54mm (W) x 3.3mm (H)
  • Weight: 42.5 grams approx.
Electrical Characteristics
  • Operational Voltage: 5 Volts 5% (256KB to 6MB cards)
  • Operational Voltage: 3.3/5 Volts 5% (8MB cards)
Power Consumption
  • Active Typical: 90mA (256KB to 6MB cards)
  • Active Typical: 110mA (8MB cards)
  • Active Maximum: 90mA (256KB to 6MB cards)
  • Active Maximum: 110mA (8MB cards)
  • Standby Mode Typical: < 2mA
  • Standby Mode Recharge: 2mA Typical, 10mA Maximum
Lithium Ion Battery
  • Recharges at standby voltage
    • Typical 2mA for fully charged @ 2.0V
    • Maximum 10mA for fully discharged @ 0.0V
  • Backup battery average charge 7 months for 4MB card (256KB to 6MB cards)
  • Backup battery average charge 18 months for 4MB card (8MB cards)
  • Backup battery average charge based on 4MB cards, lower densities have longer charge times, higher densities have shorter charge times
Operating Environment
  • Temperature Operating: 0 C to 60 C
  • Temperature Storage: 0 C to 60 C
  • Relative Humidity: 95% (max.) non-condensing
  • Shock Operating 500G
Card Life Expectancy
  • Memory Use: Unlimited write cycles, no endurance issues
  • Battery Use: 10 year minimum

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