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Made using a 0.18 micron process, Toshiba's latest FCRAM chips offer a random access time of 25 nanoseconds and a data transfer rate of up to 400Mbits on a clock speed of 200MHz.
The chips are also available in versions that run at clock speeds of 181MHz and 154MHz, which offer data transfer rates of 363Mbits per second and 308Mbits per second, respectively.
The performance of the latest FCRAM chips comes close to comparable static RAM (SRAM) chips, Toshiba said. However, the company claimed that 256Mbit FCRAM chips use 30% less power than SRAM chips.
FCRAM is designed for use in high-speed Internet and LAN applications. Toshiba expects demand for FCRAM to reach 100 million units of 128Mbit-equivalent units by 2005. The company is currently sampling 256Mbit FCRAM chips at a sample price of $60 (£41).