FRAM Features

4 Great Features


  • Stored data are not disappeared at power off
  • No battery is needed for data retention

Fast Write Speed

  • Enable to overwrite data without erase operation
  • No waiting time for erase/write operation

High Read/Write Cycle Endurance

  • Guarantees 10 trillion(1013) read/write cycles
  • 10 million times of EEPROM’s endurance

Low Power Consumption

  • No booster circuit for write operation
  • Reduce power consumption at writing by 92% than that of EEPROM
  • No data retention current to keep the data

FRAM Solutions to Customer Issues

If you are using EEPROM or SRAM in your products and have any of the following issues, please consider our FRAM for your solutions. Please refer to the Comparison between FRAM and other Memories shown below and the FRAM whitepaper.

Customer Issues and Solutions

Comparison between FRAM and other Memories

Comparison of Features

Memory TypeNon-volatileNon-volatileNon-volatileVolatile
Write MethodOverwriteErase + WriteErase + WriteOverwrite
Write Cycle Time150ns5ms10µs55ns
Read/Write Cycles1013106105Unlimited
Booster CircuitNoYesYesNo
Data Backup BatteryNoNoNoYes

Serial FRAM vs. EEPROM/Flash

Comparing with conventional non-volatile memory such as EEPROM and Flash, FRAM has advantages in faster writing, higher endurance and lower power consumption. Using FRAM instead of EEPROM and Flash has more advantages;

  1. Performance Improvement

    FRAM enables to store data in writing even at sudden power outage because of fast writing speed. Not only that, FRAM can record data more frequent than EEPROM and Flash memories. When writing the data, EEPROM and Flash memories need high voltage and thus, consume more power than FRAM. Therefore, by using FRAM, a battery life in the battery-operated small device can be extended.
    In summary, FRAM is;

    • Enables to store data in writing at sudden power outage
    • Enables to make fequent data logging
    • Enables to extend battery life of battery-operated device
  2. Total Cost Reduction

    In the case of parameter writing to each product at factory, FRAM can contribute to reduce manufacturing cost because FRAM can shorten the writing time compared with EEPROM and Flash memories. In addition, FRAM can give you one chip solution instead of multi-chip solution, e.g., 2 chips consisting of EEPROM+Flash, or 3 devices consisting of EEPROM+ SRAM+battery.

    • Shorten the writing time when parameter writing at factory
    • Reducing a number of parts used in end-product

Parallel FRAM vs. SRAM

FRAM with parallel interface, which has compatibility with battery backup SRAM, can become a substitution of the SRAM. By replacing SRAM with the FRAM, customers expect to get the following advantages.

  1. Total Cost Reduction

    System using SRAM needs to keep battery-status check. By replacing with FRAM, customers can be freed from the burden of maintenance of battery check. In addition, FRAM does not require battery socket and backflow prevention diode and the space for them, which SRAM requires. FRAM's one chip solution can reduce the space and cost.

    • Maintenance free; battery exchange is unnecessary
    • Device downsizing; a number of parts for end-product can be reduced
  2. Eco-Friendly Product

    Used battery becomes industrial waste. By replacing SRAM + battery with FRAM, unnecessary backup batteries can be reduced.

    • Reduce battery disposal

* EEPROM: Electronically Erasable and Programmable Read-Only Memory


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  • For technical questions or general questions such as product availability, pricing, etc.

Please refer to FRAM's FAQ when you have questions about FRAM.
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