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F-RAM products combine the nonvolatile data storage capability of ROM with the benefits of RAM, which include a high number of read and write cycles, high speed read and write cycles, and low power consumption. Our F-RAM product line features various interfaces and densities, which include industry-standard serial and parallel interfaces; industry standard package types; and 4-kilobit, 16-kilobit, 64-kilobit, 256-kilobit, 1-megabit, and 4-megabit densities.
All Ramtron F-RAM products have three distinct properties that make it superior to other nonvolatile memory technologies:
- Fast write speed
F-RAM performs read and write operations at the same speed. Because F-RAM writes data at bus speed, there are no delays before the written data becomes nonvolatile. Floating gate memories have long write delays of 5 milliseconds. F-RAM writes in nanoseconds, essential in applications like auto safety systems.
- High endurance
F-RAM offers virtually unlimited write endurance, which means it doesn’t wear out like other nonvolatile memory devices. Floating gate devices experience a hard failure and stop writing in as little as 1E5 cycles, making them unsuitable for high-endurance applications.
- Low power consumption
F-RAM operates without a charge pump, enabling low power consumption. Floating gate devices demand high voltage during write operations. F-RAM writes at the native voltage of the manufacturing process: 5V, 3V, or even less on more advanced processes.
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Ferroelectric memory, FRAM (Ferroelectric RAM) is a non-volatile memory offering high-speed writing, low power consumption and long rewriting endurance. It reduces the burden of OEM development because there is no need to differentiate between RAM and ROM. Furthermore, because no batteries are needed, the use of FRAM has benefits for manufacturing, maintenance and the environment. Fujitsu FRAM products include LSI devices for standalone memory smart cards and RFID. We also respond flexibly to customer requirements by creating custom LSI.
Fujitsu has delivered more than 300 million FRAM devices. We lead the world in developing and manufacturing FRAM.
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