Fujitsu samples SPI FRAMs in 0.18µm technology

FRAM (Ferroelectric Random Access Memory) combines the advantages of fast writing SRAM with non-volatile Flash into one device. The new SPI FRAM family MB85RSxxx incorporates 3 devices: MB85RS256A, MB85RS128A and MB85RS64A, which represent 3 density levels of 256Kbit, 128Kbit and 64Kbit respectively. All devices operate at a voltage range between 3.0 and 3.6V and provide an endurance of 10 billion write/read cycles as well as data retention of 10 years at 55°C. Operating frequency has been significantly increased to a maximum of 25MHz, and since FRAM products render voltage boosters unnecessary for the writing process, they are well-suited for low power applications. The products are offered in 8-pin plastic SOP packages with standard memory pin assignment, which are fully compatible with E2PROM devices. With in-house development and manufacturing, Fujitsu is able to optimise the closest co-operation between design and factory.