FRAM

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FRAM (Ferroelectric Random Access Memory) is a "non-volatile" "random access" memory, which uses ferroelectric film as a capacitor for storing data.
(Fujitsu utilizes PZT as ferroelectric material)

Combining the advantages of both ROM and RAM devices, FRAM can achieve high-speed read/write and also retain data even after the power is turned off.
Following are the advantages of FRAM:  

♦High-speed writing (1/30,000 of E²PROM)

♦High endurance (1E10 times)

♦Low power consumption (1/400 of E²PROM)

♦Non-volatility

♦Excellent tamper prevention

FRAM

FRAM is best suited for devices, which require high security and low power consumption. Fujitsu was the first to incorporate FRAM in microcomputers and has already expanded its use to smart cards, security devices, RFID transponders etc.

Smart card

Utilizing the advantages of "High-speed read/write" and "High-security," FRAM is fit for smart cards, especially for Java cards. The current inhibitors for Java cards' wide use is the low speed of non-volatile memory and smart card I/O. Solving these two problems, FRAM is regarded as the most matching technology for non-volatile memory on smart cards.

BBSRAM Substitute

BBSRAM consists of an SRAM and a battery. With two components, BBSRAM is fairly expensive, and also using batteries is not environmentally friendly.

FRAM is a perfect solution for both problems. Since FRAM doesn't need a battery, it can replace both components, the SRAM and the battery. This will bring the user three benefits; lower cost, maintenance free, and environmentally friendly.

RF-ID

FRAM RF-ID chip can provide the following advantages, which could not be provided by commonly used EEPROM based RF-ID chip.

Range

Low power consumption can improve the operating range.
The power delivered to the load must provide certain threshold voltage and power for the circuits to function. Because of the low power consumption nature of FRAM, the operating range could be improved within given field strength or power density.

Speed

Speed and range are coupled.
Given the bandwidth limitations and anti-collision schemes, low power consumption tag offer better data rate in exchange of speed of identification. FRAM is best fit for this purpose.

Cost

Process advantage.
FRAM has process advantage without much investment comparing with other memory to shrink the die size further, also with full-line of memory size.

Almost unlimited read-write times

With read-write endurance of 1E10, FRAM is more durable and suitable for applications, which requires frequent write.

Lineup

The range of our FRAM based products can be categorized in the following areas. The products shown here is just a part of our product line-up. For products descriptions, data sheets and any further information, please contact our sales office.

*SPI: Serial Peripheral Interface

*: for Japan only

*: for Japan only

*: for Japan only